Leonard Susskind Marrying Quantum Physics & General Relativity
American physicist, professor of theoretical physics at Stanford University, and founding director of the Stanford Institute for Theoretical Physics, Leonard Susskind, explains black holes, quantum physics, general relativity and how they are intertwined.
Knowing how the laws of physics behave at the extremes of space and time, near a black hole, is an important piece of the puzzle we must obtain if we are to understand how the universe works. Leonard Susskind explains how general relativity and quantum mechanics are related.
There are four fundamental forces at work in the universe: the strong force, the weak force, the electromagnetic force, and the gravitational force. They work over different ranges and have different strengths. Gravity is the weakest but it has an infinite range.
Three of the four fundamental forces of physics are described within the framework of quantum mechanics and quantum field theory. The current understanding of the fourth force, gravity, is based on Albert Einstein's general theory of relativity, which is formulated within the entirely different framework of classical physics. However, that description is incomplete.
According to Susskind, quantum gravitational effects are extremely weak and therefore difficult to test.
Leonard Susskind and his colleges of theoretical physicists have forged a connection between wormholes in spacetime and a quantum phenomenon called entanglement. This could help physicists reconcile Einstein's general theory of relativity and quantum mechanics.
#science #quantumphysics #generalrelativity
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Sources: https://en.wikipedia.org/wiki/Leonard_Susskind#/media/File:LeonardSusskindStanfordNov2013.jpgПоказать больше
Knowing how the laws of physics behave at the extremes of space and time, near a black hole, is an important piece of the puzzle we must obtain if we are to understand how the universe works. Leonard Susskind explains how general relativity and quantum mechanics are related.
There are four fundamental forces at work in the universe: the strong force, the weak force, the electromagnetic force, and the gravitational force. They work over different ranges and have different strengths. Gravity is the weakest but it has an infinite range.
Three of the four fundamental forces of physics are described within the framework of quantum mechanics and quantum field theory. The current understanding of the fourth force, gravity, is based on Albert Einstein's general theory of relativity, which is formulated within the entirely different framework of classical physics. However, that description is incomplete.
According to Susskind, quantum gravitational effects are extremely weak and therefore difficult to test.
Leonard Susskind and his colleges of theoretical physicists have forged a connection between wormholes in spacetime and a quantum phenomenon called entanglement. This could help physicists reconcile Einstein's general theory of relativity and quantum mechanics.
#science #quantumphysics #generalrelativity
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Sources: https://en.wikipedia.org/wiki/Leonard_Susskind#/media/File:LeonardSusskindStanfordNov2013.jpgПоказать больше
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Leonard Susskind Marrying Quantum Physics & General Relativity
American physicist, professor of theoretical physics at Stanford [...]
American physicist, professor of theoretical physics at Stanford University, and founding director of the Stanford Institute for Theoretical Physics, Leonard Susskind, explains black holes, quantum physics, general relativity and how they are intertwined.
Knowing how the laws of physics behave at the extremes of space and time, near a black hole, is an important piece of the puzzle we must obtain if we are to understand how the universe works. Leonard Susskind explains how general relativity and quantum mechanics are related.
There are four fundamental forces at work in the universe: the strong force, the weak force, the electromagnetic force, and the gravitational force. They work over different ranges and have different strengths. Gravity is the weakest but it has an infinite range.
Three of the four fundamental forces of physics are described within the framework of quantum mechanics and quantum field theory. The current understanding of the fourth force, gravity, is based on Albert Einstein's general theory of relativity, which is formulated within the entirely different framework of classical physics. However, that description is incomplete.
According to Susskind, quantum gravitational effects are extremely weak and therefore difficult to test.
Leonard Susskind and his colleges of theoretical physicists have forged a connection between wormholes in spacetime and a quantum phenomenon called entanglement. This could help physicists reconcile Einstein's general theory of relativity and quantum mechanics.
#science #quantumphysics #generalrelativity
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Sources: https://en.wikipedia.org/wiki/Leonard_Susskind#/media/File:LeonardSusskindStanfordNov2013.jpgПоказать больше
Knowing how the laws of physics behave at the extremes of space and time, near a black hole, is an important piece of the puzzle we must obtain if we are to understand how the universe works. Leonard Susskind explains how general relativity and quantum mechanics are related.
There are four fundamental forces at work in the universe: the strong force, the weak force, the electromagnetic force, and the gravitational force. They work over different ranges and have different strengths. Gravity is the weakest but it has an infinite range.
Three of the four fundamental forces of physics are described within the framework of quantum mechanics and quantum field theory. The current understanding of the fourth force, gravity, is based on Albert Einstein's general theory of relativity, which is formulated within the entirely different framework of classical physics. However, that description is incomplete.
According to Susskind, quantum gravitational effects are extremely weak and therefore difficult to test.
Leonard Susskind and his colleges of theoretical physicists have forged a connection between wormholes in spacetime and a quantum phenomenon called entanglement. This could help physicists reconcile Einstein's general theory of relativity and quantum mechanics.
#science #quantumphysics #generalrelativity
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Sources: https://en.wikipedia.org/wiki/Leonard_Susskind#/media/File:LeonardSusskindStanfordNov2013.jpgПоказать больше
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Dark Stars, Dark Energy & Gravitons Explained by Brian Greene
Everything you see, everything you ever loved, every object you look [...]
Everything you see, everything you ever loved, every object you look at in the night sky, including comets, moons, planets, and stars, are made of ordinary matter. Which consist of only about 5% of the Universe. And that's the bit of the universe we understand.
The remaining 95% however, we have no idea what it truly is.
But we've given this mystery a name. And we know just about enough that it's two separate things. Dark matter & dark energy.
Theoretical physicist, Brian Greene explains in great detail what we know about dark matter, dark energy and gravitons.
In theories of quantum gravity, the "Graviton" is the hypothetical quantum of gravity, an elementary particle that mediates the force of gravitational interaction.
If gravitons exist, they are expected to be massless because the gravitational force has a very long range, and appears to propagate at the speed of light.
It's extremely counterintuitive that the vast majority energy distribution in the universe is invisible to us, especially when we gaze the night sky and observe trillions of stars. But there could be also stars that are partially made of dark matter.
The early universe may have harbored so called "dark stars". These types of cosmic objects would be composed mostly of normal matter, like modern stars, but a high concentration of neutralino dark matter present within them would generate heat via annihilation reactions between the dark-matter particles.
Under this model, a dark star is predicted to be an enormous cloud of molecular hydrogen and helium ranging between 4 and 2,000 astronomical units in diameter and with a surface temperature and luminosity low enough that the emitted radiation would be invisible to the naked eye.
In theories of quantum gravity, the "Graviton" is the hypothetical quantum of gravity, an elementary particle that mediates the force of gravitational interaction.
#bgreene #universe #space
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Sources: https://www.youtube.com/watch?v=xk48z8N-sl0
"Brian Greene" by rvr is licensed under CC BY 2.0. To view a copy of this license, visit https://creativecommons.org/licenses/by/2.0/?ref=openverse.Показать больше
The remaining 95% however, we have no idea what it truly is.
But we've given this mystery a name. And we know just about enough that it's two separate things. Dark matter & dark energy.
Theoretical physicist, Brian Greene explains in great detail what we know about dark matter, dark energy and gravitons.
In theories of quantum gravity, the "Graviton" is the hypothetical quantum of gravity, an elementary particle that mediates the force of gravitational interaction.
If gravitons exist, they are expected to be massless because the gravitational force has a very long range, and appears to propagate at the speed of light.
It's extremely counterintuitive that the vast majority energy distribution in the universe is invisible to us, especially when we gaze the night sky and observe trillions of stars. But there could be also stars that are partially made of dark matter.
The early universe may have harbored so called "dark stars". These types of cosmic objects would be composed mostly of normal matter, like modern stars, but a high concentration of neutralino dark matter present within them would generate heat via annihilation reactions between the dark-matter particles.
Under this model, a dark star is predicted to be an enormous cloud of molecular hydrogen and helium ranging between 4 and 2,000 astronomical units in diameter and with a surface temperature and luminosity low enough that the emitted radiation would be invisible to the naked eye.
In theories of quantum gravity, the "Graviton" is the hypothetical quantum of gravity, an elementary particle that mediates the force of gravitational interaction.
#bgreene #universe #space
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Sources: https://www.youtube.com/watch?v=xk48z8N-sl0
"Brian Greene" by rvr is licensed under CC BY 2.0. To view a copy of this license, visit https://creativecommons.org/licenses/by/2.0/?ref=openverse.Показать больше
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How Did Life Begin? Neil deGrasse Tyson on Life on Earth & Beyond
How did life begin? Neil deGrasse Tyson gives his take about life on [...]
How did life begin? Neil deGrasse Tyson gives his take about life on Earth and beyond. Tyson also explains Panspermia.
Earth is the only place we know of so far that’s inhabited by living things. It is the only world in our solar system with liquid water on the surface. Does this mean that our beloved planet is the only planet in the Universe that supports life? According to Neil deGrasse Tyson, to think that we are the only place where life found its way would be arrogant.
Some of today's most brilliant minds are actively considering whether life got to Earth from elsewhere in the Universe. The idea is that life would form in one place across space and then by some mechanism or another, transfer from that place where it formed to another place. This leads to the question whether living organisms have been transported between the planets of our solar system by the same mechanism.
Scientists are exploring several possible locations for the origin of life. One hypothesis is that life originated near a deep sea hydrothermal vent. The chemicals found in these vents and the energy they provide could have fueled many of the chemical reactions necessary for the evolution of life. Furthermore, using the DNA sequences of modern organisms, scientists have tentatively traced the most recent common ancestor of all life to an aquatic microorganism that lived in extremely high temperatures — a likely candidate for a hydrothermal vent inhabitant!
#life #neiltyson #aliens
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"Dr. Neil deGrasse Tyson Visits NASA Goddard" by NASA Goddard Photo and Video is licensed under CC BY 2.0.Показать больше
Earth is the only place we know of so far that’s inhabited by living things. It is the only world in our solar system with liquid water on the surface. Does this mean that our beloved planet is the only planet in the Universe that supports life? According to Neil deGrasse Tyson, to think that we are the only place where life found its way would be arrogant.
Some of today's most brilliant minds are actively considering whether life got to Earth from elsewhere in the Universe. The idea is that life would form in one place across space and then by some mechanism or another, transfer from that place where it formed to another place. This leads to the question whether living organisms have been transported between the planets of our solar system by the same mechanism.
Scientists are exploring several possible locations for the origin of life. One hypothesis is that life originated near a deep sea hydrothermal vent. The chemicals found in these vents and the energy they provide could have fueled many of the chemical reactions necessary for the evolution of life. Furthermore, using the DNA sequences of modern organisms, scientists have tentatively traced the most recent common ancestor of all life to an aquatic microorganism that lived in extremely high temperatures — a likely candidate for a hydrothermal vent inhabitant!
#life #neiltyson #aliens
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Sources:
"Dr. Neil deGrasse Tyson Visits NASA Goddard" by NASA Goddard Photo and Video is licensed under CC BY 2.0.Показать больше
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Did We Receive a Signal From Aliens? Brian Greene on Space Travel & ET
Brian Greene tackles the question whether we are alone in the [...]
Brian Greene tackles the question whether we are alone in the universe. Space is so vast it's filled with trillions and trillions of stars. While we may get star struck when we look at the night sky and gaze in it's seemingly endless sea of stars hosting countless Earth like planets, and think we could not possibly be alone in the galaxy, Physicist Enrico Fermi reminds us that we need evidence to infer the existence of aliens. Hence, his famous paradox.
But what if there was actual physical evidence to suggest extraterrestrials are communicating with us?
How would our world view change if we found out aliens made contact?
Theoretical physicist, Brian Greene thinks that one reason why we don't see aliens all around us is because they may have destroyed themselves.
On August 15, 1977, The Ohio State University's "Big Ear" radio telescope picked up a strong narrow-band radio signal which became known as the "Wow" signal. It remains the strongest candidate for an extraterrestrial radio transmission ever detected.
Of course radio signals are not the only way we think aliens would communicate with us. Perhaps there is a way aliens communicate that we can not even fathom. But that's neither here nor there. Because in our perspective, there is no distinction between a civilization that is so advanced that we cannot detect, and one that doesn't exist.
And there lies the problem with the surge of recent UFO footage. If fuzzy video clips of unidentified flying objects, or as the U.S government likes to call them, unidentified aerial phenomenon, are the only piece of evidence to suggest aliens not only exist but are also visiting us, then we most certainly are nowhere near of answering the question "Are we alone".
If we do not hear from aliens at all, that doesn't mean it's evidence for their absence. But maybe that means we should be the ones that start exploring space and try to communicate with them.
If our civilization survives and goes to reach the distant stars to find life elsewhere, our descendants will be the ones who will be called aliens.
But who knows how far into the future that scenario lies, if at all.
#bgreene #aliens #science
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Sources:
https://www.youtube.com/watch?v=98HZanvAJ8Y&t=7s&ab_channel=LexFridman
https://www.youtube.com/watch?v=ZXuelZVLdzM
"Renowned Physicist Brian Greene Draws Sold Out Crowd at College of DuPage 2018 5" by COD Newsroom is licensed under CC BY 2.0.Показать больше
But what if there was actual physical evidence to suggest extraterrestrials are communicating with us?
How would our world view change if we found out aliens made contact?
Theoretical physicist, Brian Greene thinks that one reason why we don't see aliens all around us is because they may have destroyed themselves.
On August 15, 1977, The Ohio State University's "Big Ear" radio telescope picked up a strong narrow-band radio signal which became known as the "Wow" signal. It remains the strongest candidate for an extraterrestrial radio transmission ever detected.
Of course radio signals are not the only way we think aliens would communicate with us. Perhaps there is a way aliens communicate that we can not even fathom. But that's neither here nor there. Because in our perspective, there is no distinction between a civilization that is so advanced that we cannot detect, and one that doesn't exist.
And there lies the problem with the surge of recent UFO footage. If fuzzy video clips of unidentified flying objects, or as the U.S government likes to call them, unidentified aerial phenomenon, are the only piece of evidence to suggest aliens not only exist but are also visiting us, then we most certainly are nowhere near of answering the question "Are we alone".
If we do not hear from aliens at all, that doesn't mean it's evidence for their absence. But maybe that means we should be the ones that start exploring space and try to communicate with them.
If our civilization survives and goes to reach the distant stars to find life elsewhere, our descendants will be the ones who will be called aliens.
But who knows how far into the future that scenario lies, if at all.
#bgreene #aliens #science
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Sources:
https://www.youtube.com/watch?v=98HZanvAJ8Y&t=7s&ab_channel=LexFridman
https://www.youtube.com/watch?v=ZXuelZVLdzM
"Renowned Physicist Brian Greene Draws Sold Out Crowd at College of DuPage 2018 5" by COD Newsroom is licensed under CC BY 2.0.Показать больше
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The Multiverse Hypothesis Explained by Brian Cox
The multiverse hypothesis has been gaining ground over the recent [...]
The multiverse hypothesis has been gaining ground over the recent years in public discourse. Some even regard the multiverse concept as a valid scientific theory rather than a hypothesis. Brian Cox explains that the multiverse does not only belong in the realm of science fiction. However the lack of physical evidence for the multiverse has accumulated much criticism and some worry it could damage trust of physical sciences in public opinion.
Brian Cox also explains inflationary theory and how it could provide indication that the multiverse exists.
Some scientists are now suggesting that the Big Bang is just one moment in an eternal cycle of cosmic creation and dissolution. Scientists are working on different theories to try and explain how the universe could have come into existence.
The multiverse idea has arisen in many versions, primarily in cosmology, quantum mechanics, and philosophy, and often asserts the actual physical existence of different potential configurations or histories of the known observable universe.
Many modern physicists think about a multiverse in the context of the “many worlds” theory of quantum mechanics. According to this theory, when a particle is measured, it can result in either just one outcome or multiple outcomes. The universe splits into different universes in one of the outcomes. Each being a separate reality. According to Brian Cox, the theory could also answer the question as to why our universe seem to be fine tuned for life.
Multiverse theories have been widely criticized as speculation or philosophy rather than science, which again, is indeed a legitimate concern. Multiverse defenders however, contend that a description of the observable universe as one part of a multiverse can be much simpler than a description of the observable universe as the only universe at all.
#bigbang #ProfBrianCox #science
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Sources: "Professor Brian Cox at BETT 2020" by p_a_h is licensed under CC BY 2.0. To view a copy of this license, visit https://creativecommons.org/licenses/by/2.0/?ref=openverse.
Exploring Primordial Black Holes from the Multiverse with Optical Telescopes
Alexander Kusenko, Misao Sasaki, Sunao Sugiyama, Masahiro Takada, Volodymyr Takhistov, and Edoardo Vitagliano
Phys. Rev. Lett. 125, 181304 – Published 30 October 2020
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.125.181304
In Class with Brian Cox - The Royal Institution of Australia
https://youtu.be/1rQzq5t44Q8
16.3K subscribersПоказать больше
Brian Cox also explains inflationary theory and how it could provide indication that the multiverse exists.
Some scientists are now suggesting that the Big Bang is just one moment in an eternal cycle of cosmic creation and dissolution. Scientists are working on different theories to try and explain how the universe could have come into existence.
The multiverse idea has arisen in many versions, primarily in cosmology, quantum mechanics, and philosophy, and often asserts the actual physical existence of different potential configurations or histories of the known observable universe.
Many modern physicists think about a multiverse in the context of the “many worlds” theory of quantum mechanics. According to this theory, when a particle is measured, it can result in either just one outcome or multiple outcomes. The universe splits into different universes in one of the outcomes. Each being a separate reality. According to Brian Cox, the theory could also answer the question as to why our universe seem to be fine tuned for life.
Multiverse theories have been widely criticized as speculation or philosophy rather than science, which again, is indeed a legitimate concern. Multiverse defenders however, contend that a description of the observable universe as one part of a multiverse can be much simpler than a description of the observable universe as the only universe at all.
#bigbang #ProfBrianCox #science
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Sources: "Professor Brian Cox at BETT 2020" by p_a_h is licensed under CC BY 2.0. To view a copy of this license, visit https://creativecommons.org/licenses/by/2.0/?ref=openverse.
Exploring Primordial Black Holes from the Multiverse with Optical Telescopes
Alexander Kusenko, Misao Sasaki, Sunao Sugiyama, Masahiro Takada, Volodymyr Takhistov, and Edoardo Vitagliano
Phys. Rev. Lett. 125, 181304 – Published 30 October 2020
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.125.181304
In Class with Brian Cox - The Royal Institution of Australia
https://youtu.be/1rQzq5t44Q8
16.3K subscribersПоказать больше
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What If Aliens Make Contact? - Neil deGrasse Tyson on Intelligent Alien Life
What would we do as a civilization if we found evidence for [...]
What would we do as a civilization if we found evidence for intelligent alien life? How would we deal with it?
Neil deGrasse Tyson explains why alien civilizations may be rare, even though life in general may be ubiquitous throughout the galaxy and beyond.
Neil deGrasse Tyson also explains how intelligent alien life might not think of us as intelligent given the fact how we think of chimpanzees. We share around 99% common DNA with chimps yet we cannot communicate with them. Is it hubris to even imagine we could communicate with an alien species billions of years ahead of us?
The cosmos is filled with trillions of stars. There are about 100 thousand million stars in the Milky Way alone. Many of them, are just like our own sun. Based on that number, it would seem we are most certainly not alone in the galaxy let alone in the universe.
So where are all the aliens?
As far as our civilization has come technologically, we are nowhere near of reaching the stars.
It takes light, the fastest thing there is in the universe, about 4.2 years to reach the nearest star to Earth, Proxima Centauri.
And there lies the problem...Space. Its unimaginably vast. If our descendants want to venture to the distant stars, they will have to invent new means for space travel.
In physics, a tunnel with two ends at separate points in spacetime is known as a wormhole. But the lack of evidence for intelligent aliens is either telling that they are extremely rare if not non-existent, or that wormholes are not physically possible.
Even with our current technologies it is estimated that the our galaxy the milky way can be colonized within less than a billion years.
So if an alien civilization with our current capabilities started colonizing the galaxy a billion years ago, we should be seeing signs of their presence by now. And if that was the case then with the words of the famous physicist Enrico Fermi, Where is everybody?
#fermiparadox #neiltyson #aliens
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Sources: https://www.youtube.com/watch?v=VBVg5l1Cn6U
https://en.wikipedia.org/wiki/Proxima_Centauri_b
Dr. Neil deGrasse Tyson Visits NASA Goddard
by NASA Goddard Photo and VideoПоказать больше
Neil deGrasse Tyson explains why alien civilizations may be rare, even though life in general may be ubiquitous throughout the galaxy and beyond.
Neil deGrasse Tyson also explains how intelligent alien life might not think of us as intelligent given the fact how we think of chimpanzees. We share around 99% common DNA with chimps yet we cannot communicate with them. Is it hubris to even imagine we could communicate with an alien species billions of years ahead of us?
The cosmos is filled with trillions of stars. There are about 100 thousand million stars in the Milky Way alone. Many of them, are just like our own sun. Based on that number, it would seem we are most certainly not alone in the galaxy let alone in the universe.
So where are all the aliens?
As far as our civilization has come technologically, we are nowhere near of reaching the stars.
It takes light, the fastest thing there is in the universe, about 4.2 years to reach the nearest star to Earth, Proxima Centauri.
And there lies the problem...Space. Its unimaginably vast. If our descendants want to venture to the distant stars, they will have to invent new means for space travel.
In physics, a tunnel with two ends at separate points in spacetime is known as a wormhole. But the lack of evidence for intelligent aliens is either telling that they are extremely rare if not non-existent, or that wormholes are not physically possible.
Even with our current technologies it is estimated that the our galaxy the milky way can be colonized within less than a billion years.
So if an alien civilization with our current capabilities started colonizing the galaxy a billion years ago, we should be seeing signs of their presence by now. And if that was the case then with the words of the famous physicist Enrico Fermi, Where is everybody?
#fermiparadox #neiltyson #aliens
SUBSCRIBE to our channel "Science Time": https://www.youtube.com/sciencetime24
Sources: https://www.youtube.com/watch?v=VBVg5l1Cn6U
https://en.wikipedia.org/wiki/Proxima_Centauri_b
Dr. Neil deGrasse Tyson Visits NASA Goddard
by NASA Goddard Photo and VideoПоказать больше
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A Universe From Nothing? The Ultimate Free Lunch
Theoretical physicist, cosmologist, and author Stephen Hawking [...]
Theoretical physicist, cosmologist, and author Stephen Hawking explained that the universe could have arisen from nothing. Theoretical physicist and cosmologist Lawrence Krauss also explains why there is something rather than nothing. According to Hawking - “Because there is a law such as gravity, the universe can and will create itself from nothing. Spontaneous creation is the reason there is something rather than nothing, why the universe exists, why we exist".
"A Universe From Nothing" is an accessible and engaging exploration of some of the latest ideas and discoveries being offered as explanations for how the universe came to be. This is perhaps one of the greatest questions of all, because it’s essentially asking not only where did everything come from, but how did all of it arise in the first place.
Krauss postulates that all signs suggest a universe that could and plausibly did arise from a deeper nothing—involving the absence of space itself and—which may one day return to nothing via processes that may not only be comprehensible but also processes that do not require any external control or direction.
But, what came before the big bang? Scientists have yet to determine what prevailed before Planck time. Stephen Hawking, gave a proposal concerning the state of the Universe prior to the Planck epoch. But for him, the question of what came before the Big Bang was meaningless because , to all intents and purposes, time itself — as well as the universe and everything in it — began at the Big Bang.
#universe #space #science
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Sources: https://www.youtube.com/watch?v=c7MO3up5bZs&ab_channel=HKUST
https://www.britannica.com/science/big-bang-model
https://www.youtube.com/watch?v=v-qU4F0lNfU&t=335s&ab_channel=LarryKing
https://www.youtube.com/watch?v=9urEFoaI1iY&ab_channel=NationalScienceFoundation
"Professor Stephen Hawking" by kBandara is marked with CC BY 2.0.Показать больше
"A Universe From Nothing" is an accessible and engaging exploration of some of the latest ideas and discoveries being offered as explanations for how the universe came to be. This is perhaps one of the greatest questions of all, because it’s essentially asking not only where did everything come from, but how did all of it arise in the first place.
Krauss postulates that all signs suggest a universe that could and plausibly did arise from a deeper nothing—involving the absence of space itself and—which may one day return to nothing via processes that may not only be comprehensible but also processes that do not require any external control or direction.
But, what came before the big bang? Scientists have yet to determine what prevailed before Planck time. Stephen Hawking, gave a proposal concerning the state of the Universe prior to the Planck epoch. But for him, the question of what came before the Big Bang was meaningless because , to all intents and purposes, time itself — as well as the universe and everything in it — began at the Big Bang.
#universe #space #science
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Sources: https://www.youtube.com/watch?v=c7MO3up5bZs&ab_channel=HKUST
https://www.britannica.com/science/big-bang-model
https://www.youtube.com/watch?v=v-qU4F0lNfU&t=335s&ab_channel=LarryKing
https://www.youtube.com/watch?v=9urEFoaI1iY&ab_channel=NationalScienceFoundation
"Professor Stephen Hawking" by kBandara is marked with CC BY 2.0.Показать больше
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The Evolution of The Universe Explained by Brian Cox
Beloved physicist Brian Cox explains the evolution of the universe. [...]
Beloved physicist Brian Cox explains the evolution of the universe. Starting from the big bang up to the modern day universe we observe today. Brian Cox also explains inflation and what it entails for 21st century cosmology.
Some 13.75 billion years ago, the universe emerged from a hot, dense sea of matter and energy. As the cosmos expanded and cooled, it spawned galaxies, stars, and the planets we observe today. But the timeline between when the universe began and the universe we observe today, is huge. And there are lots of unsolved mysteries in that period of time. Fortunately for curious minds that want to know how the universe began and evolved, cosmologists including Brian Cox have offered a very sharp picture on what the universe's past, present and future looks like.
As the universe expanded, it cooled off enough to let the plasma become atoms, and for the first time in the history and evolution of the universe, it became transparent. We observe the light from this time as the cosmic microwave background.
As the first stars and black holes formed, they turned much of the hydrogen gas in the universe into plasma again, a process astronomers call “reionization”.
But how can scientists be so certain about these events that supposedly happened billions of years ago?
Brian Cox also explains why we are confident on our measurements of the universe.
It is certainly a privilege to be born in the 21st century and have access to all the available knowledge about the universe. Hopefully, if civilization lasts we will continue to get ever so closely to a complete picture of the cosmos and our place in it.
#universe #ProfBrianCox #science
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Sources: https://www.youtube.com/watch?v=r7BTqKeP6Ks
https://www.youtube.com/watch?v=6eAMGN69B5k&t=2423s
"Professor Brain Cox" by University of Essex is marked with CC BY 2.0.Показать больше
Some 13.75 billion years ago, the universe emerged from a hot, dense sea of matter and energy. As the cosmos expanded and cooled, it spawned galaxies, stars, and the planets we observe today. But the timeline between when the universe began and the universe we observe today, is huge. And there are lots of unsolved mysteries in that period of time. Fortunately for curious minds that want to know how the universe began and evolved, cosmologists including Brian Cox have offered a very sharp picture on what the universe's past, present and future looks like.
As the universe expanded, it cooled off enough to let the plasma become atoms, and for the first time in the history and evolution of the universe, it became transparent. We observe the light from this time as the cosmic microwave background.
As the first stars and black holes formed, they turned much of the hydrogen gas in the universe into plasma again, a process astronomers call “reionization”.
But how can scientists be so certain about these events that supposedly happened billions of years ago?
Brian Cox also explains why we are confident on our measurements of the universe.
It is certainly a privilege to be born in the 21st century and have access to all the available knowledge about the universe. Hopefully, if civilization lasts we will continue to get ever so closely to a complete picture of the cosmos and our place in it.
#universe #ProfBrianCox #science
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Sources: https://www.youtube.com/watch?v=r7BTqKeP6Ks
https://www.youtube.com/watch?v=6eAMGN69B5k&t=2423s
"Professor Brain Cox" by University of Essex is marked with CC BY 2.0.Показать больше
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The Day We Give Birth to AGI - Stuart Russell's Warning About AI
Stuart Russell warns about the dangers involved in the creation of [...]
Stuart Russell warns about the dangers involved in the creation of artificial intelligence. Particularly, artificial general intelligence or AGI.
The idea of an artificial intelligence that might one day surpass human intelligence has been captivating and terrifying us for decades now. The possibility of what it would be like if we had the ability to create a machine that could think like a human, or even surpass us in cognitive abilities is something that many envision. But, as with many novel technologies, there are a few problems with building an AGI. But what if we succeed? What would happen should our quest to create artificial intelligence bear fruit? How do we retain power over entities that are more intelligent than us? The answer, of course, is that nobody knows for sure. But there are some logical conclusions we can draw from examining the nature of intelligence and what kind of entities might be capable of it.
Stuart Russell is a Professor of Computer Science at the University of California at Berkeley, holder of the Smith-Zadeh Chair in Engineering, and Director of the Center for Human-Compatible AI. He outlines the definition of AI, the risks and benefits it poses for the future. According to him, the idea of an AGI is the most important problem to intellectually to work on.
An AGI could be used for many good and evil purposes. Although there are huge benefits to creating an AGI, there are also downsides to doing so. If we create and deploy an AGI without understanding what risks it can cause for humans and other beings in our world, we could be contributing to great disasters.
Russel also postulates that we should focus on developing a machine that learns what each of the eight billion people on Earth would like the future to be like.
#AI #AGI #science
SUBSCRIBE to our channel "Science Time": https://www.youtube.com/sciencetime24
Sources:Показать больше
The idea of an artificial intelligence that might one day surpass human intelligence has been captivating and terrifying us for decades now. The possibility of what it would be like if we had the ability to create a machine that could think like a human, or even surpass us in cognitive abilities is something that many envision. But, as with many novel technologies, there are a few problems with building an AGI. But what if we succeed? What would happen should our quest to create artificial intelligence bear fruit? How do we retain power over entities that are more intelligent than us? The answer, of course, is that nobody knows for sure. But there are some logical conclusions we can draw from examining the nature of intelligence and what kind of entities might be capable of it.
Stuart Russell is a Professor of Computer Science at the University of California at Berkeley, holder of the Smith-Zadeh Chair in Engineering, and Director of the Center for Human-Compatible AI. He outlines the definition of AI, the risks and benefits it poses for the future. According to him, the idea of an AGI is the most important problem to intellectually to work on.
An AGI could be used for many good and evil purposes. Although there are huge benefits to creating an AGI, there are also downsides to doing so. If we create and deploy an AGI without understanding what risks it can cause for humans and other beings in our world, we could be contributing to great disasters.
Russel also postulates that we should focus on developing a machine that learns what each of the eight billion people on Earth would like the future to be like.
#AI #AGI #science
SUBSCRIBE to our channel "Science Time": https://www.youtube.com/sciencetime24
Sources:Показать больше
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The Fermi Paradox With Neil deGrasse Tyson - Part 2 - Where Is Everybody?
American astrophysicist, planetary scientist, author, and science [...]
American astrophysicist, planetary scientist, author, and science communicator Neil deGrasse Tyson explains the Fermi Paradox. Which basically is the combination of two facts: The stupendous large number of stars in our Galaxy alone and the lack of evidence to infer the existence of extraterrestrial life.
Neil deGrasse Tyson also explains goldilock zones and if their importance are overrated. Frank Drake in 1961 in an attempt to find a systematic means to evaluate the numerous probabilities involved in the existence of alien life formulated the now famous drake equation. Obviously the drake equation is thought of as an approximation rather than a serious attempt to determine a precise number.
But at the very least it provides scientific dialogue in an attempt to answer one of the greatest questions in human existence. Are we alone in the Universe.
Neil deGrasse Tyson thinks its very unlikely we are alone in the Universe but also points out that we need clear cut evidence before we can make the assertion that life on Earth is not unique.
As we've mentioned before in our videos, one possible answer for why we haven't seen evidence of intelligent alien life in the galaxy in the context of the Fermi paradox is the great filter hypothesis. Anything that prevents non-living matter from undergoing abiogenesis to then becoming a space-dwelling civilization as measured by the Kardashev scale, can be in principle a great filter.
The lack of evidence for INTELLIGENT extraterrestrial life, does not rule out the possibility of extraterrestrial microbial life or any kind of primitive alien life form for that matter, from being ubiquitous. This way, we can have our cake and eat it too.
Even though we don't see any evidence for aliens, they still might be out there. Only not the smart kind we always think of when imagining other life forms in the galaxy. If this is truly the case then it would mean that it is fairly easy for non living matter to undergo abiogenesis but then life encounters a great filter in the intelligence phase.
Obviously, we define ourselves as intelligent. But would an alien species billions of years ahead of us think the same?
#fermiparadox #neiltyson #aliens
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Sources: https://www.youtube.com/watch?v=VBVg5l1Cn6UПоказать больше
Neil deGrasse Tyson also explains goldilock zones and if their importance are overrated. Frank Drake in 1961 in an attempt to find a systematic means to evaluate the numerous probabilities involved in the existence of alien life formulated the now famous drake equation. Obviously the drake equation is thought of as an approximation rather than a serious attempt to determine a precise number.
But at the very least it provides scientific dialogue in an attempt to answer one of the greatest questions in human existence. Are we alone in the Universe.
Neil deGrasse Tyson thinks its very unlikely we are alone in the Universe but also points out that we need clear cut evidence before we can make the assertion that life on Earth is not unique.
As we've mentioned before in our videos, one possible answer for why we haven't seen evidence of intelligent alien life in the galaxy in the context of the Fermi paradox is the great filter hypothesis. Anything that prevents non-living matter from undergoing abiogenesis to then becoming a space-dwelling civilization as measured by the Kardashev scale, can be in principle a great filter.
The lack of evidence for INTELLIGENT extraterrestrial life, does not rule out the possibility of extraterrestrial microbial life or any kind of primitive alien life form for that matter, from being ubiquitous. This way, we can have our cake and eat it too.
Even though we don't see any evidence for aliens, they still might be out there. Only not the smart kind we always think of when imagining other life forms in the galaxy. If this is truly the case then it would mean that it is fairly easy for non living matter to undergo abiogenesis but then life encounters a great filter in the intelligence phase.
Obviously, we define ourselves as intelligent. But would an alien species billions of years ahead of us think the same?
#fermiparadox #neiltyson #aliens
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Is The Universe a Hologram? Brian Greene on Quantum Gravity & Black Holes
String theorist, mathematician and theoretical physicist Brian Greene [...]
String theorist, mathematician and theoretical physicist Brian Greene talks about black holes, quantum gravity and the possibility of our Universe being a hologram. Brian Greene thinks string theory has potential to reconcile quantum gravity and general relativity.
He also brings attention to the question "Could the whole universe in fact be a hologram? This is not just a wild speculation but a theory that scientists take very seriously, even if they can not completely understand it.
The idea is that "everything is just a 2-dimensional projection" of the rest of the universe, and from this perspective, our three-dimensional world is actually a hologram.
According to Brian Greene, this is a hard idea even for physicists to fully grasp and they are still trying to really understand in detail what this would mean.
The holographic principle, came out of the study of the most extraordinary objects that are known to exist in the universe - black holes. They could hold the key to unlocking the next phase in our understanding of the laws of physics.
There’s a similarity of black holes and the big bang, in that both are space-time singularities where the laws of physics break down.
We think of the big bang as a moment when the entire observable universe was crushed to a very small size. So, according to Brian Greene, they’re kind of the same in some deep mathematical sense.
Stephen Hawking believed information that enters a black hole is lost forever. Many scientists believe that the information we see all around us is actually encoded on a big surface that surrounds us, a thin two-dimensional surface that sort of is like a hologram.
The holographic principle was given a precise string-theory interpretation by Leonard Susskind, a physicist at Stanford University.
According to this holographic Universe theory, our "reality" is also encoded in the structure of space itself. Like a normal hologram, such a universe would be fundamentally two dimensional.
#bgreene #Universe #science
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Sources: "Brian Greene no Fronteiras do Pensamento Porto Alegre 2014" by fronteirasweb is marked with CC BY-SA 2.0.
A grand challenge in modern theoretical physics is to find a ‘unified theory’ that can describe all the laws of nature within a single framework – connecting Einstein's general theory of relativity, which describes the universe on a large scale, and quantum mechanics, which describes our world at the atomic level.
World Science Festival - Interviews with Brian Greene throughout the years
https://youtube.com/c/WorldScienceFestival
Mathematical discovery could shed light on secrets of the Universe
https://www.chalmers.se/en/departments/math/news/Pages/mathematical-discovery-could-shed-light-on-secrets-of-the-universe.aspxПоказать больше
He also brings attention to the question "Could the whole universe in fact be a hologram? This is not just a wild speculation but a theory that scientists take very seriously, even if they can not completely understand it.
The idea is that "everything is just a 2-dimensional projection" of the rest of the universe, and from this perspective, our three-dimensional world is actually a hologram.
According to Brian Greene, this is a hard idea even for physicists to fully grasp and they are still trying to really understand in detail what this would mean.
The holographic principle, came out of the study of the most extraordinary objects that are known to exist in the universe - black holes. They could hold the key to unlocking the next phase in our understanding of the laws of physics.
There’s a similarity of black holes and the big bang, in that both are space-time singularities where the laws of physics break down.
We think of the big bang as a moment when the entire observable universe was crushed to a very small size. So, according to Brian Greene, they’re kind of the same in some deep mathematical sense.
Stephen Hawking believed information that enters a black hole is lost forever. Many scientists believe that the information we see all around us is actually encoded on a big surface that surrounds us, a thin two-dimensional surface that sort of is like a hologram.
The holographic principle was given a precise string-theory interpretation by Leonard Susskind, a physicist at Stanford University.
According to this holographic Universe theory, our "reality" is also encoded in the structure of space itself. Like a normal hologram, such a universe would be fundamentally two dimensional.
#bgreene #Universe #science
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Sources: "Brian Greene no Fronteiras do Pensamento Porto Alegre 2014" by fronteirasweb is marked with CC BY-SA 2.0.
A grand challenge in modern theoretical physics is to find a ‘unified theory’ that can describe all the laws of nature within a single framework – connecting Einstein's general theory of relativity, which describes the universe on a large scale, and quantum mechanics, which describes our world at the atomic level.
World Science Festival - Interviews with Brian Greene throughout the years
https://youtube.com/c/WorldScienceFestival
Mathematical discovery could shed light on secrets of the Universe
https://www.chalmers.se/en/departments/math/news/Pages/mathematical-discovery-could-shed-light-on-secrets-of-the-universe.aspxПоказать больше
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Brian Cox - Why Did The Big Bang Happen?
English physicist and professor of particle physics Brian Cox explains [...]
English physicist and professor of particle physics Brian Cox explains the details behind the Big Bang theory.
The moment where space, time and everything else that came into existence which would eventually give rise to the present day cosmos, occurred some 13.75 billion years ago.
The prevailing cosmological model explaining the existence of the observable universe from the earliest known periods is known as The Big Bang theory.
It is one of the best theories we have in all of science. But of course it doesn't explain everything. Like "Why" did the big bang happen in the first place. But maybe the question "Why" is not a good question. As it presupposes the Universe had a purpose. Maybe, a better question is... "How".
Brian Cox points out how the idea that the universe began as an unfathomably single point, then expanded and stretched out to grow as large as it is today is truly mind boggling. But that's what the evidence strongly suggests happened.
Two major scientific discoveries provide strong support for the Big Bang theory: Hubble’s discovery in the 1920s of a relationship between a galaxy’s distance from Earth and its speed. And the discovery in the 1960s of cosmic microwave background radiation.
When scientists talk about the expanding Universe, they mean that it has been increasing in size ever since the Big Bang. But what exactly is getting bigger? Galaxies, stars, planets aren’t getting bigger. Their size is controlled by the strength of the fundamental forces that hold atoms and sub-atomic particles together, and that hasn’t changed. Instead it’s the space between galaxies that’s increasing – they’re getting further apart as space itself expands. And if that's the case, one might wonder: What is the Universe expanding into?
Brian Cox explains that its extremely difficult to imagine the idea that space and time itself may have been created at the big bang.
As counterintuitive and as strange these ideas may sound, they have firm theoretical framework based on our understanding of the laws of physics.
#bigbang #ProfBrianCox #science
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Sources:
https://www.youtube.com/watch?v=mig-FFU3zy8
https://www.uwa.edu.au/study/-/media/Faculties/Science/Docs/Evidence-for-the-Big-Bang.pdf
"Brian Cox" by p_a_h is marked with CC BY 2.0.Показать больше
The moment where space, time and everything else that came into existence which would eventually give rise to the present day cosmos, occurred some 13.75 billion years ago.
The prevailing cosmological model explaining the existence of the observable universe from the earliest known periods is known as The Big Bang theory.
It is one of the best theories we have in all of science. But of course it doesn't explain everything. Like "Why" did the big bang happen in the first place. But maybe the question "Why" is not a good question. As it presupposes the Universe had a purpose. Maybe, a better question is... "How".
Brian Cox points out how the idea that the universe began as an unfathomably single point, then expanded and stretched out to grow as large as it is today is truly mind boggling. But that's what the evidence strongly suggests happened.
Two major scientific discoveries provide strong support for the Big Bang theory: Hubble’s discovery in the 1920s of a relationship between a galaxy’s distance from Earth and its speed. And the discovery in the 1960s of cosmic microwave background radiation.
When scientists talk about the expanding Universe, they mean that it has been increasing in size ever since the Big Bang. But what exactly is getting bigger? Galaxies, stars, planets aren’t getting bigger. Their size is controlled by the strength of the fundamental forces that hold atoms and sub-atomic particles together, and that hasn’t changed. Instead it’s the space between galaxies that’s increasing – they’re getting further apart as space itself expands. And if that's the case, one might wonder: What is the Universe expanding into?
Brian Cox explains that its extremely difficult to imagine the idea that space and time itself may have been created at the big bang.
As counterintuitive and as strange these ideas may sound, they have firm theoretical framework based on our understanding of the laws of physics.
#bigbang #ProfBrianCox #science
SUBSCRIBE to our channel "Science Time": https://www.youtube.com/sciencetime24
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Sources:
https://www.youtube.com/watch?v=mig-FFU3zy8
https://www.uwa.edu.au/study/-/media/Faculties/Science/Docs/Evidence-for-the-Big-Bang.pdf
"Brian Cox" by p_a_h is marked with CC BY 2.0.Показать больше
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Neil deGrasse Tyson Explains Future Space Travel Challenges
Neil deGrasse Tyson Explains Future Space Travel Challenges Subscribe [...]
Neil deGrasse Tyson Explains Future Space Travel Challenges
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Neil deGrasse Tyson talks about the challenges of space exploration and space travel. Throughout human history, humankind has shared an innate trait – the desire to explore. According to Neil deGrasse Tyson, the urge to explore is not the only driving factor that could take us beyond low-Earth orbit and into deep space. A large proportion of current research into space is involved in understanding how to keep humans alive. When a spacecraft built for humans ventures into deep space, it requires an array of features to keep it and a crew inside safe. Neil deGrasse Tyson also talks about "little" things that are important for space missions such as food and drinking water.
#neiltyson #spacetravel #science
Sources: "File:Neil deGrasse Tyson at Howard University September 28, 2010.jpg" by Bruce F Press is marked with CC BY 3.0.Показать больше
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Neil deGrasse Tyson talks about the challenges of space exploration and space travel. Throughout human history, humankind has shared an innate trait – the desire to explore. According to Neil deGrasse Tyson, the urge to explore is not the only driving factor that could take us beyond low-Earth orbit and into deep space. A large proportion of current research into space is involved in understanding how to keep humans alive. When a spacecraft built for humans ventures into deep space, it requires an array of features to keep it and a crew inside safe. Neil deGrasse Tyson also talks about "little" things that are important for space missions such as food and drinking water.
#neiltyson #spacetravel #science
Sources: "File:Neil deGrasse Tyson at Howard University September 28, 2010.jpg" by Bruce F Press is marked with CC BY 3.0.Показать больше
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Brian Cox - Quantum Mechanics & Particle Physics of The Early Universe
Brian Cox - Quantum Mechanics & Particle Physics of The Early Universe [...]
Brian Cox - Quantum Mechanics & Particle Physics of The Early Universe
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Brian Cox talks about the early Universe and it's subsequent evolution. From quantum mechanics to large scale structure of the Universe Cox explains how we are able to unlock the secrets of the Cosmos.
It is astonishing to think how modern physics of the 20th century has unveiled some of the deepest mysteries of the cosmos. And yet again...We may be on the verge of discovering the mechanisms that explain in great detail our Universe and our place in it.
#ProfBrianCox #Universe #science
Sources: https://www.youtube.com/watch?v=VfMIw-NfVkc
https://en.wikipedia.org/wiki/Chronology_of_the_universe
https://www.nasa.gov/feature/goddard/2021/nasa-s-webb-will-use-quasars-to-unlock-the-secrets-of-the-early-universe
"MIPIM 2013 day one: Professor Brian Cox talks on the Manchester stand MIPIM 2013" by EG Focus is marked with CC BY 2.0.Показать больше
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Brian Cox talks about the early Universe and it's subsequent evolution. From quantum mechanics to large scale structure of the Universe Cox explains how we are able to unlock the secrets of the Cosmos.
It is astonishing to think how modern physics of the 20th century has unveiled some of the deepest mysteries of the cosmos. And yet again...We may be on the verge of discovering the mechanisms that explain in great detail our Universe and our place in it.
#ProfBrianCox #Universe #science
Sources: https://www.youtube.com/watch?v=VfMIw-NfVkc
https://en.wikipedia.org/wiki/Chronology_of_the_universe
https://www.nasa.gov/feature/goddard/2021/nasa-s-webb-will-use-quasars-to-unlock-the-secrets-of-the-early-universe
"MIPIM 2013 day one: Professor Brian Cox talks on the Manchester stand MIPIM 2013" by EG Focus is marked with CC BY 2.0.Показать больше
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If You Could, Would You Live Forever? David Sinclair on Extending Lifespan
If You Could, Would You Live Forever? David Sinclair on Extending [...]
If You Could, Would You Live Forever? David Sinclair on Extending Lifespan
Subscribe to Science Time: https://www.youtube.com/sciencetime24
David Sinclair explains what you can do right now to extend your lifespan and also your so called healthspan. The age of superhumans is about to begin.
When we think of age, we think of a number. That number increases every year, and we regard it as a signpost for general health. At fifty, we begin colorectal screening. In our eighties, we prepare our will. But how much does that number actually tell us? Two people born on the same day are widely considered the same age. So are those two people at equal risk for age-related illness? Scientists that research longevity have arrived at an unexpected result: human beings do not age uniformly. That means that some of us are aging more quickly than others. New interventions even promise to reverse biological age - what might have been called science fiction in the recent past.
#davidsinclair #longevity #science
Sources:Показать больше
Subscribe to Science Time: https://www.youtube.com/sciencetime24
David Sinclair explains what you can do right now to extend your lifespan and also your so called healthspan. The age of superhumans is about to begin.
When we think of age, we think of a number. That number increases every year, and we regard it as a signpost for general health. At fifty, we begin colorectal screening. In our eighties, we prepare our will. But how much does that number actually tell us? Two people born on the same day are widely considered the same age. So are those two people at equal risk for age-related illness? Scientists that research longevity have arrived at an unexpected result: human beings do not age uniformly. That means that some of us are aging more quickly than others. New interventions even promise to reverse biological age - what might have been called science fiction in the recent past.
#davidsinclair #longevity #science
Sources:Показать больше
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Brian Greene - What Can The James Webb Space Telescope Tell Us About Alien Life?
Brian Greene - What Can The James Webb Space Telescope Tell Us About [...]
Brian Greene - What Can The James Webb Space Telescope Tell Us About Alien Life?
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Brian Greene talks about the science behind the James Webb Space Telescope and the possibility of finding alien life in distant exoplanets.
There are countless questions in science and more specifically in cosmology, that the James Webb Space Telescope will provide an answer for. Webb will gaze the very first stars and galaxies to form in our universe and show us planets like never before.
American theoretical physicist, mathematician, and string theorist, Brian Greene is very excited about the prospect of the JWST. He thinks it will have a radical impact in understanding our world.
#bgreene #Universe #science
Sources:
https://www.youtube.com/watch?v=98HZanvAJ8Y&ab_channel=LexFridman
https://www.youtube.com/watch?v=zokNLqGd9TQ&t=2372s&ab_channel=WorldScienceFestival
"Renowned Physicist Brian Greene Draws Sold Out Crowd at College of DuPage 2018 22" by COD Newsroom is marked with CC BY 2.0.
https://www.nasa.gov/Показать больше
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Brian Greene talks about the science behind the James Webb Space Telescope and the possibility of finding alien life in distant exoplanets.
There are countless questions in science and more specifically in cosmology, that the James Webb Space Telescope will provide an answer for. Webb will gaze the very first stars and galaxies to form in our universe and show us planets like never before.
American theoretical physicist, mathematician, and string theorist, Brian Greene is very excited about the prospect of the JWST. He thinks it will have a radical impact in understanding our world.
#bgreene #Universe #science
Sources:
https://www.youtube.com/watch?v=98HZanvAJ8Y&ab_channel=LexFridman
https://www.youtube.com/watch?v=zokNLqGd9TQ&t=2372s&ab_channel=WorldScienceFestival
"Renowned Physicist Brian Greene Draws Sold Out Crowd at College of DuPage 2018 22" by COD Newsroom is marked with CC BY 2.0.
https://www.nasa.gov/Показать больше
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When Galaxies Collide - What Happens When Andromeda Collides With The Milky Way?
When Galaxies Collide - What Happens When Andromeda Collides With The [...]
When Galaxies Collide - What Happens When Andromeda Collides With The Milky Way?
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Brian Cox and Alex Filippenko explain what happens when two galaxies collide with each other. Our Milky Way galaxy is destined to collide with the Andromeda galaxy. There's no stopping it, but we can predict what's going to happen, and thanks to the Hubble telescope and more recently the James Webb Space Telescope, we can study other galaxy collisions to learn more about what we can expect.
Astronomers will be able to probe the earliest periods of galaxy formation by looking deep into space to see the first galaxies that form in the universe, only a few hundred million years after the Big Bang.
#galaxy #universe #scienceПоказать больше
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Brian Cox and Alex Filippenko explain what happens when two galaxies collide with each other. Our Milky Way galaxy is destined to collide with the Andromeda galaxy. There's no stopping it, but we can predict what's going to happen, and thanks to the Hubble telescope and more recently the James Webb Space Telescope, we can study other galaxy collisions to learn more about what we can expect.
Astronomers will be able to probe the earliest periods of galaxy formation by looking deep into space to see the first galaxies that form in the universe, only a few hundred million years after the Big Bang.
#galaxy #universe #scienceПоказать больше
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Neil deGrasse Tyson - The Biggest Mysteries in The Universe
Neil deGrasse Tyson - The Biggest Mysteries in The Universe Subscribe [...]
Neil deGrasse Tyson - The Biggest Mysteries in The Universe
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Neil deGrasse Tyson explains some of the biggest mysteries in the Universe. Why is there something rather than nothing? What is dark matter and dark energy? Is the Universe infinite? These are some of the biggest questions in cosmology today. And scientists are working hard to give us answers.
In the past decade an extraordinary claim has captivated astrophysicists: That the expanding universe we see around us is not the only one, that billions of other universes are out there. There is not one universe, but rather, there is a multiverse.
We may never get answers that satisfy our curiosity about the biggest questions in cosmology. But that doesn't mean we shouldn't explore the unknown and try to resolve age old questions like: Was there a time before everything came into existence. Or in more modern terms: What was there before the big bang?
#neiltyson #universe #science
Sources: https://www.youtube.com/watch?v=rYzBxo3hbYQ
https://en.wikipedia.org/wiki/Neil_deGrasse_Tyson#/media/File:Neil_deGrasse_Tyson_in_June_2017_(cropped).jpgПоказать больше
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Neil deGrasse Tyson explains some of the biggest mysteries in the Universe. Why is there something rather than nothing? What is dark matter and dark energy? Is the Universe infinite? These are some of the biggest questions in cosmology today. And scientists are working hard to give us answers.
In the past decade an extraordinary claim has captivated astrophysicists: That the expanding universe we see around us is not the only one, that billions of other universes are out there. There is not one universe, but rather, there is a multiverse.
We may never get answers that satisfy our curiosity about the biggest questions in cosmology. But that doesn't mean we shouldn't explore the unknown and try to resolve age old questions like: Was there a time before everything came into existence. Or in more modern terms: What was there before the big bang?
#neiltyson #universe #science
Sources: https://www.youtube.com/watch?v=rYzBxo3hbYQ
https://en.wikipedia.org/wiki/Neil_deGrasse_Tyson#/media/File:Neil_deGrasse_Tyson_in_June_2017_(cropped).jpgПоказать больше
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Brian Cox - What Can The James Webb Space Telescope Tell Us About The Universe?
Brian Cox - What Can The James Webb Space Telescope Tell Us About The [...]
Brian Cox - What Can The James Webb Space Telescope Tell Us About The Universe?
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Brian Cox talks the James Webb Space Telescope and it's importance for our understanding of the Universe.
Throughout history, people have gazed up at the night sky and wondered about our place in the universe. What else is out there? How did it all begin? Are there other planets like Earth? Well the new revolutionary telescope called the James Webb Space Telescope that was successfully deployed into space could answer a lot of these questions. Scientists like Brian Cox are excited because this gigantic instrument could solve many mysteries of our Universe.
#ProfBrianCox #Universe #science
Sources: "Professor Brian Cox" by University of Essex is licensed under CC BY 2.0
https://www.youtube.com/goddardtvПоказать больше
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Brian Cox talks the James Webb Space Telescope and it's importance for our understanding of the Universe.
Throughout history, people have gazed up at the night sky and wondered about our place in the universe. What else is out there? How did it all begin? Are there other planets like Earth? Well the new revolutionary telescope called the James Webb Space Telescope that was successfully deployed into space could answer a lot of these questions. Scientists like Brian Cox are excited because this gigantic instrument could solve many mysteries of our Universe.
#ProfBrianCox #Universe #science
Sources: "Professor Brian Cox" by University of Essex is licensed under CC BY 2.0
https://www.youtube.com/goddardtvПоказать больше
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Brian Cox - Is The Universe Infinite?
Brian Cox - Is The Universe Infinite? Subscribe to Science Time: [...]
Brian Cox - Is The Universe Infinite?
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Brian Cox talks about the possibility of the Universe being infinite. Of course the question, does the cosmos go on forever, is an age old question in philosophy and science.
The observable universe is finite in that it hasn't existed forever. It extends 46 billion light years in every direction from us.
But what lies beyond the observable Universe?
Brian Cox explains how big the Universe really is.
What we know for certain is that the Universe is bigger than we observe it to be, essentially because the farthest edges of the universe we can see don’t look like edges at all. The observable universe is still huge, but of course it has limits. That’s because we know the universe isn’t infinitely old. We know the Big Bang occurred some 13.8 billion years ago.
#ProfBrianCox #Universe #science
Sources: Brian Cox at the JRE: https://www.youtube.com/watch?v=wieRZoJSVtw
"Professor Brian Cox at BETT 2020" by p_a_h is licensed under CC BY 2.0
https://commons.wikimedia.org/wiki/File:Observable_Universe_Logarithmic_Map_(horizontal_layout_english_annotations).pngПоказать больше
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Brian Cox talks about the possibility of the Universe being infinite. Of course the question, does the cosmos go on forever, is an age old question in philosophy and science.
The observable universe is finite in that it hasn't existed forever. It extends 46 billion light years in every direction from us.
But what lies beyond the observable Universe?
Brian Cox explains how big the Universe really is.
What we know for certain is that the Universe is bigger than we observe it to be, essentially because the farthest edges of the universe we can see don’t look like edges at all. The observable universe is still huge, but of course it has limits. That’s because we know the universe isn’t infinitely old. We know the Big Bang occurred some 13.8 billion years ago.
#ProfBrianCox #Universe #science
Sources: Brian Cox at the JRE: https://www.youtube.com/watch?v=wieRZoJSVtw
"Professor Brian Cox at BETT 2020" by p_a_h is licensed under CC BY 2.0
https://commons.wikimedia.org/wiki/File:Observable_Universe_Logarithmic_Map_(horizontal_layout_english_annotations).pngПоказать больше
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The Generation of Superhumans - Can We Edit Our Genes?
The Generation of Superhumans - Can We Edit Our Genes? Subscribe to [...]
The Generation of Superhumans - Can We Edit Our Genes?
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New technologies have considerably improved scientists' ability to locate the genetic variations that distinguish our DNA from that of other people. In some instances, these genetic differences give rise to diverse superhuman abilities. There is growing interest in identifying genes associated with special abilities, many of which seem to be inherited. Some consider people like Wim Hof a.k.a the iceman known for the Wim Hof method as a person with superhuman abilities.
As for the future, according to prominent scientists within 30 years, it will probably be possible to make essentially any kind of change to any kind of genome.
#superhuman #science #sciencetime
Sources:
Supergenes - https://arep.med.harvard.edu/gmc/protect.html
George Church - Genetic Superpowers: Changing Your Genome and Environment, Harvard Medical School
https://youtu.be/RFeU7kEnFNA
How Fast Is the World’s Fastest Human?
https://www.britannica.com/story/how-fast-is-the-worlds-fastest-human
The Ice man Wim Hof tells his story - Anything goes with James English Ep/135
https://youtu.be/QXfF8-kvQ8gПоказать больше
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New technologies have considerably improved scientists' ability to locate the genetic variations that distinguish our DNA from that of other people. In some instances, these genetic differences give rise to diverse superhuman abilities. There is growing interest in identifying genes associated with special abilities, many of which seem to be inherited. Some consider people like Wim Hof a.k.a the iceman known for the Wim Hof method as a person with superhuman abilities.
As for the future, according to prominent scientists within 30 years, it will probably be possible to make essentially any kind of change to any kind of genome.
#superhuman #science #sciencetime
Sources:
Supergenes - https://arep.med.harvard.edu/gmc/protect.html
George Church - Genetic Superpowers: Changing Your Genome and Environment, Harvard Medical School
https://youtu.be/RFeU7kEnFNA
How Fast Is the World’s Fastest Human?
https://www.britannica.com/story/how-fast-is-the-worlds-fastest-human
The Ice man Wim Hof tells his story - Anything goes with James English Ep/135
https://youtu.be/QXfF8-kvQ8gПоказать больше
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Intragalactic Alien Civilizations With Neil deGrasse Tyson
Intragalactic Alien Civilizations With Neil deGrasse Tyson Subscribe [...]
Intragalactic Alien Civilizations With Neil deGrasse Tyson
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Neil deGrasse Tyson explains the possibility of alien civilizations existing in our galaxy the milky way.
Many people believe we've been visited by intelligent aliens but the evidence shown so far, is anything but overwhelming.
Since the first confirmed discovery of an exoplanet in 1995, astronomers have grown more confident that the universe must harbor other civilizations.
Their hope is to find other worlds with signs of microbial organisms or better yet, find evidence that would suggest the existence of intelligent extraterrestrial life.
The sheer number of stars suggests the universe is teeming with life.
#neiltyson #aliens #science
Sources: NDT larry king: https://www.youtube.com/watch?v=PTqqiDQP02I&t=854s&ab_channel=LarryKing
NDT JRE: https://www.youtube.com/watch?v=cDut-A2GtLA&ab_channel=JREClips
"625" by TRICIAMCKINNEY is licensed under CC BY 2.0Показать больше
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Neil deGrasse Tyson explains the possibility of alien civilizations existing in our galaxy the milky way.
Many people believe we've been visited by intelligent aliens but the evidence shown so far, is anything but overwhelming.
Since the first confirmed discovery of an exoplanet in 1995, astronomers have grown more confident that the universe must harbor other civilizations.
Their hope is to find other worlds with signs of microbial organisms or better yet, find evidence that would suggest the existence of intelligent extraterrestrial life.
The sheer number of stars suggests the universe is teeming with life.
#neiltyson #aliens #science
Sources: NDT larry king: https://www.youtube.com/watch?v=PTqqiDQP02I&t=854s&ab_channel=LarryKing
NDT JRE: https://www.youtube.com/watch?v=cDut-A2GtLA&ab_channel=JREClips
"625" by TRICIAMCKINNEY is licensed under CC BY 2.0Показать больше
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Brian Greene - Do Parallel Universes Exist?
Brian Greene - Do Parallel Universes Exist? Subscribe to Science Time: [...]
Brian Greene - Do Parallel Universes Exist?
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Renowned physicist Brian Greene talks about the possible existence of parallel universes. It's not often that someone is able to communicate the complex theories of a parallel worlds or a multiverse for that matter in a way that's entertaining, informative, and easy to understand. Luckily, Brian Greene is just that kind of person.
Many physicists have long claimed that all of the observable universe is one, self-contained event. But there is a growing number of scientists who claim that there is a real chance of parallel universes existing, based on the current state of physics.
Brian Greene has devised classification schemes for the various theoretical types of multiverses and universes that they might comprise. Greene's classification is based on the use of mathematics to describe quantum states (or quantum branches) which are believed to exist in the multiverse.
#multiverse #bgreene #science
Sources: "Renowned Physicist Brian Greene Draws Sold Out Crowd at College of DuPage 2018 7" by COD Newsroom is licensed under CC BY 2.0
The bizarre logic of the many-worlds theory - Nature 573, 30-32 (2019)
doi: https://doi.org/10.1038/d41586-019-02602-8
Hidden Realities: Parallel Universes and the Deep Laws of the Cosmos, Dr. Brian Greene, Columbia
https://youtu.be/6tgMQJSxB5k
Something Deeply Hidden | Sean Carroll | Talks at Google
https://youtu.be/F6FR08VylO4Показать больше
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Renowned physicist Brian Greene talks about the possible existence of parallel universes. It's not often that someone is able to communicate the complex theories of a parallel worlds or a multiverse for that matter in a way that's entertaining, informative, and easy to understand. Luckily, Brian Greene is just that kind of person.
Many physicists have long claimed that all of the observable universe is one, self-contained event. But there is a growing number of scientists who claim that there is a real chance of parallel universes existing, based on the current state of physics.
Brian Greene has devised classification schemes for the various theoretical types of multiverses and universes that they might comprise. Greene's classification is based on the use of mathematics to describe quantum states (or quantum branches) which are believed to exist in the multiverse.
#multiverse #bgreene #science
Sources: "Renowned Physicist Brian Greene Draws Sold Out Crowd at College of DuPage 2018 7" by COD Newsroom is licensed under CC BY 2.0
The bizarre logic of the many-worlds theory - Nature 573, 30-32 (2019)
doi: https://doi.org/10.1038/d41586-019-02602-8
Hidden Realities: Parallel Universes and the Deep Laws of the Cosmos, Dr. Brian Greene, Columbia
https://youtu.be/6tgMQJSxB5k
Something Deeply Hidden | Sean Carroll | Talks at Google
https://youtu.be/F6FR08VylO4Показать больше
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ROMULUS - The First City on Mars
Romulus - The First City on Mars Subscribe to Science Time: [...]
Romulus - The First City on Mars
Subscribe to Science Time: https://www.youtube.com/sciencetime24
The first martian city will likely form before the turn of the century. Elon Musk has voiced many times that our civilization needs to become multiplanetary. And Mars is the perfect candidate to achieve that monumental goal. SpaceX is currently developing Starship with the ultimate purpose of Mars exploration and colonization. Neil deGrasse Tyson and Brian Cox also agree with Musk that Mars is fitting if not the only Planet other than Earth suitable for a self sustaining city. The future of space exploration looks bright when we consider colonizing Mars.
#mars #elonmusk #science
Sources: Elon Musk at Lex Fridman: https://www.youtube.com/watch?v=DxREm3s1scA&ab_channel=LexFridman
Neil deGrasse Tyson at JRE:https://www.youtube.com/watch?v=fHu-IbAkE74&ab_channel=JREClips
Brian Cox at JRE: https://www.youtube.com/watch?v=1ohLB30_RBM&ab_channel=JREClipsПоказать больше
Subscribe to Science Time: https://www.youtube.com/sciencetime24
The first martian city will likely form before the turn of the century. Elon Musk has voiced many times that our civilization needs to become multiplanetary. And Mars is the perfect candidate to achieve that monumental goal. SpaceX is currently developing Starship with the ultimate purpose of Mars exploration and colonization. Neil deGrasse Tyson and Brian Cox also agree with Musk that Mars is fitting if not the only Planet other than Earth suitable for a self sustaining city. The future of space exploration looks bright when we consider colonizing Mars.
#mars #elonmusk #science
Sources: Elon Musk at Lex Fridman: https://www.youtube.com/watch?v=DxREm3s1scA&ab_channel=LexFridman
Neil deGrasse Tyson at JRE:https://www.youtube.com/watch?v=fHu-IbAkE74&ab_channel=JREClips
Brian Cox at JRE: https://www.youtube.com/watch?v=1ohLB30_RBM&ab_channel=JREClipsПоказать больше
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Brian Cox: Is There Alien Life in The Solar System?
Brian Cox: Is There Alien Life in The Solar System? Subscribe to [...]
Brian Cox: Is There Alien Life in The Solar System?
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Professor Brian Cox thinks it's a likely possibility there is alien life in our solar system. For example, Jupiter's moon Europa. Beneath it's icy shell there could be microbial life if not multi cellular life forms. Other worlds in the solar system that could host alien life are The moons of Saturn Titan and Enceladus. Besides Earth, among the planets in the solar system that could be harboring alien microbial life is the red planet Mars. Billions of years ago Mars was much closer to Earth than it is today. The only way to find out whether we are alone in the solar system and beyond is to start exploring space.
#ProfBrianCox #alien #scienceПоказать больше
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Professor Brian Cox thinks it's a likely possibility there is alien life in our solar system. For example, Jupiter's moon Europa. Beneath it's icy shell there could be microbial life if not multi cellular life forms. Other worlds in the solar system that could host alien life are The moons of Saturn Titan and Enceladus. Besides Earth, among the planets in the solar system that could be harboring alien microbial life is the red planet Mars. Billions of years ago Mars was much closer to Earth than it is today. The only way to find out whether we are alone in the solar system and beyond is to start exploring space.
#ProfBrianCox #alien #scienceПоказать больше
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Inside The Mind of a Genius - Brian Greene on Albert Einstein
Inside The Mind of a Genius - Brian Greene on Albert Einstein [...]
Inside The Mind of a Genius - Brian Greene on Albert Einstein
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Brian Greene talks about the genius of physics, Albert Einstein. The contributions of Einstein in the field of physics are monumental to our understanding of space and time and the universe as a whole. Brian Greene thinks Einstein is one of the most influential thinkers of our species. He single handedly transformed the way we view the cosmos. His papers on special relativity, the general theory of relativity and in quantum physics are what skyrocketed Einstein into the mainstream as science super star.
#einstein #bgreene #science
Sources: https://www.youtube.com/watch?v=NnQQ8e7H4L0&t=0s
http://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit5/gps.html
https://commons.wikimedia.org/wiki/File:Albert_Einstein_colourised_portrait.jpgПоказать больше
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Brian Greene talks about the genius of physics, Albert Einstein. The contributions of Einstein in the field of physics are monumental to our understanding of space and time and the universe as a whole. Brian Greene thinks Einstein is one of the most influential thinkers of our species. He single handedly transformed the way we view the cosmos. His papers on special relativity, the general theory of relativity and in quantum physics are what skyrocketed Einstein into the mainstream as science super star.
#einstein #bgreene #science
Sources: https://www.youtube.com/watch?v=NnQQ8e7H4L0&t=0s
http://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit5/gps.html
https://commons.wikimedia.org/wiki/File:Albert_Einstein_colourised_portrait.jpgПоказать больше
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The Aliens Around Us - Can We Find Signs of Extraterrestrial Life?
The Aliens Around Us - Can We Find Signs of Extraterrestrial Life? [...]
The Aliens Around Us - Can We Find Signs of Extraterrestrial Life?
Subscribe to Science Time: https://www.youtube.com/sciencetime24
The quest to find evidence for alien life is a never-ending endeavour. Scientists think we may be on the verge of finding signs not only of alien life but also evidence for intelligent extraterrestrial civilizations. Brian Greene thinks there could be alien civilizations billions of years ahead of us. Avi Loeb also thinks it's arrogant to presume we are alone in the Universe given the fact that there are countless Earth like planets in the cosmos. Space is a fascinating frontier to explore and we are only scratching the surface on what could possibly be out there.
#alien #space #science
Sources:
Galileo Project https://projects.iq.harvard.edu/galileo/home
Extraterrestrial Life - Avi Loeb - Museum of Science Boston
https://youtu.be/uFrBcy0P6iM
The Search for Extraterrestrial Intelligence
https://www.scientificamerican.com/article/the-search-for-extraterre/
Joe Rogan Experience #1428 - Brian Greene
https://youtu.be/r4wQsmAtZoc
James Webb Telescope
https://jwst.nasa.gov/content/webbLaunch/news.htmlПоказать больше
Subscribe to Science Time: https://www.youtube.com/sciencetime24
The quest to find evidence for alien life is a never-ending endeavour. Scientists think we may be on the verge of finding signs not only of alien life but also evidence for intelligent extraterrestrial civilizations. Brian Greene thinks there could be alien civilizations billions of years ahead of us. Avi Loeb also thinks it's arrogant to presume we are alone in the Universe given the fact that there are countless Earth like planets in the cosmos. Space is a fascinating frontier to explore and we are only scratching the surface on what could possibly be out there.
#alien #space #science
Sources:
Galileo Project https://projects.iq.harvard.edu/galileo/home
Extraterrestrial Life - Avi Loeb - Museum of Science Boston
https://youtu.be/uFrBcy0P6iM
The Search for Extraterrestrial Intelligence
https://www.scientificamerican.com/article/the-search-for-extraterre/
Joe Rogan Experience #1428 - Brian Greene
https://youtu.be/r4wQsmAtZoc
James Webb Telescope
https://jwst.nasa.gov/content/webbLaunch/news.htmlПоказать больше
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Making Contact - Neil deGrasse Tyson on Alien Life
Making Contact - Neil deGrasse Tyson on Alien Life Subscribe to [...]
Making Contact - Neil deGrasse Tyson on Alien Life
Subscribe to Science Time: https://www.youtube.com/sciencetime24
How would scientists tell the world if they found evidence for alien life? According to SETI, the probability of finding alien life somewhere in the Milky Way is high, based on a number of studies showing that our galaxy contains countless Earth-like planets that orbit sun-like stars. Neil deGrasse Tyson thinks we are probably not alone given the fact how many stars there are in the galaxy not to mention the entire universe.
Other prominent scientists also think we will most likely find compelling evidence for extraterrestrial life relatively soon. Undoubtedly evidence for alien life would be the biggest discovery in human history.
#neiltyson #aliens #science
Sources: https://www.youtube.com/watch?v=OJ4X-09OJsI
"Dr. Neil deGrasse Tyson Visits NASA Goddard" by NASA Goddard Photo and Video is licensed under CC BY 2.0Показать больше
Subscribe to Science Time: https://www.youtube.com/sciencetime24
How would scientists tell the world if they found evidence for alien life? According to SETI, the probability of finding alien life somewhere in the Milky Way is high, based on a number of studies showing that our galaxy contains countless Earth-like planets that orbit sun-like stars. Neil deGrasse Tyson thinks we are probably not alone given the fact how many stars there are in the galaxy not to mention the entire universe.
Other prominent scientists also think we will most likely find compelling evidence for extraterrestrial life relatively soon. Undoubtedly evidence for alien life would be the biggest discovery in human history.
#neiltyson #aliens #science
Sources: https://www.youtube.com/watch?v=OJ4X-09OJsI
"Dr. Neil deGrasse Tyson Visits NASA Goddard" by NASA Goddard Photo and Video is licensed under CC BY 2.0Показать больше
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Can We Prevent an Asteroid From Hitting Earth?
Can We Prevent an Asteroid From Hitting Earth? Subscribe to Science [...]
Can We Prevent an Asteroid From Hitting Earth?
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Space is vast and filled with cosmic debris. Some of the remnants left over from the early formation of our solar system about 4.6 billion years ago are rocky formation known as asteroids. Brian Cox, Neil deGrasse Tyson, Bill Nye and others share their opinions about asteroids and what we can do to prevent one from colliding with Earth.
Nasa's DART mission will be the first demonstration of the kinetic impactor technique to change the motion of an asteroid in space. But what would happen if an Asteroid were to be heading towards the Earth? What would we do about it? How would we detect it? But most importantly, would we be able to stop it?
#asteroid #science #space
Sources:
https://asteroidday.org/resources/asteroid-learning/nasa-launches-the-dart-mission/
"Bill Nye visits Goddard Space Flight Center" by NASA Goddard Photo and Video is licensed under CC BY 2.0
"Dr. Neil deGrasse Tyson Visits NASA Goddard" by NASA Goddard Photo and Video is licensed under CC BY 2.0
ESA Planetary Defence
https://www.esa.int/Safety_Security/Hera/Planetary_defence2
Defending the Earth from Asteroids on ADLIVE 2021
https://asteroidday.org/news-updates/defending-the-earth-from-asteroids-on-adlive-2021/
Chicxulub crater
"PIA03379: Shaded Relief with Height as Color, Yucatan Peninsula, Mexico". Shuttle Radar Topography Mission. NASA. Archived from the original on March 13, 2017
New theory explains possible origin of plummeting Chicxulub impactor that struck off Mexico
https://news.harvard.edu/gazette/story/2021/02/new-theory-behind-asteroid-that-killed-the-dinosaurs/
This is how many asteroids fly past earth... And how many could be dangerous
https://www.weforum.org/agenda/2021/07/asteroids-earth-space-danger-commets-nasa
Nancy Chabot DART - The First Planetary Defense Mission
https://youtu.be/LoLH3ruxDsY
Bill Nye AsteroidDay
https://youtu.be/RyWJGJbRT2w
Brian Cox - Asteroid Day LIVE from Luxembourg - What Happens When Asteroids Hit
https://youtu.be/Au8v6ynQMdI
The Pluto Files | Neil deGrasse Tyson | Talks at Google
https://youtu.be/ztLZcvtVIo4Показать больше
Subscribe to Science Time: https://www.youtube.com/sciencetime24
Space is vast and filled with cosmic debris. Some of the remnants left over from the early formation of our solar system about 4.6 billion years ago are rocky formation known as asteroids. Brian Cox, Neil deGrasse Tyson, Bill Nye and others share their opinions about asteroids and what we can do to prevent one from colliding with Earth.
Nasa's DART mission will be the first demonstration of the kinetic impactor technique to change the motion of an asteroid in space. But what would happen if an Asteroid were to be heading towards the Earth? What would we do about it? How would we detect it? But most importantly, would we be able to stop it?
#asteroid #science #space
Sources:
https://asteroidday.org/resources/asteroid-learning/nasa-launches-the-dart-mission/
"Bill Nye visits Goddard Space Flight Center" by NASA Goddard Photo and Video is licensed under CC BY 2.0
"Dr. Neil deGrasse Tyson Visits NASA Goddard" by NASA Goddard Photo and Video is licensed under CC BY 2.0
ESA Planetary Defence
https://www.esa.int/Safety_Security/Hera/Planetary_defence2
Defending the Earth from Asteroids on ADLIVE 2021
https://asteroidday.org/news-updates/defending-the-earth-from-asteroids-on-adlive-2021/
Chicxulub crater
"PIA03379: Shaded Relief with Height as Color, Yucatan Peninsula, Mexico". Shuttle Radar Topography Mission. NASA. Archived from the original on March 13, 2017
New theory explains possible origin of plummeting Chicxulub impactor that struck off Mexico
https://news.harvard.edu/gazette/story/2021/02/new-theory-behind-asteroid-that-killed-the-dinosaurs/
This is how many asteroids fly past earth... And how many could be dangerous
https://www.weforum.org/agenda/2021/07/asteroids-earth-space-danger-commets-nasa
Nancy Chabot DART - The First Planetary Defense Mission
https://youtu.be/LoLH3ruxDsY
Bill Nye AsteroidDay
https://youtu.be/RyWJGJbRT2w
Brian Cox - Asteroid Day LIVE from Luxembourg - What Happens When Asteroids Hit
https://youtu.be/Au8v6ynQMdI
The Pluto Files | Neil deGrasse Tyson | Talks at Google
https://youtu.be/ztLZcvtVIo4Показать больше
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Are We Alone in The Galaxy? Brian Cox on Alien Life
Are We Alone in The Galaxy? Brian Cox on Alien Life Subscribe to [...]
Are We Alone in The Galaxy? Brian Cox on Alien Life
Subscribe to Science Time: https://www.youtube.com/sciencetime24
It is one of the most intriguing questions in all of science...Are we alone?
There are about 300 million planets in our galaxy alone that might support life as we know it. By the sheer number of these planets it can be argued that we are most likely not unique in the galaxy. Brian Cox thinks that there must be intelligent civilizations out there, although they might be extremely rare when we consider the rise of intelligent life here on Earth.
Imagine intelligent civilizations are prevalent throughout the lifespan of the galaxy. There had to be a first civilization. Asking: Are we alone? Only in their case the answer would be, yes. But maybe, that civilization is us.
#ProfBrianCox #alien #science
Sources: Audio: https://www.youtube.com/watch?v=wieRZoJSVtw
https://www.nationalgeographic.com/science/article/how-many-alien-civilizations-are-out-there-new-galactic-survey-holds-clue
https://interestingengineering.com/nasas-james-webb-telescope-could-detect-alien-life-in-just-20-hours?fbclid=IwAR1wEHC-DCwmO_NgXYgXvcE3vU-Me_MYDanvffaDm1A1Ip6kg92RWTAJ1aI
"MIPIM 2013: Day one pic round up - Professor Brian Cox" by EG Focus is licensed under CC BY 2.0Показать больше
Subscribe to Science Time: https://www.youtube.com/sciencetime24
It is one of the most intriguing questions in all of science...Are we alone?
There are about 300 million planets in our galaxy alone that might support life as we know it. By the sheer number of these planets it can be argued that we are most likely not unique in the galaxy. Brian Cox thinks that there must be intelligent civilizations out there, although they might be extremely rare when we consider the rise of intelligent life here on Earth.
Imagine intelligent civilizations are prevalent throughout the lifespan of the galaxy. There had to be a first civilization. Asking: Are we alone? Only in their case the answer would be, yes. But maybe, that civilization is us.
#ProfBrianCox #alien #science
Sources: Audio: https://www.youtube.com/watch?v=wieRZoJSVtw
https://www.nationalgeographic.com/science/article/how-many-alien-civilizations-are-out-there-new-galactic-survey-holds-clue
https://interestingengineering.com/nasas-james-webb-telescope-could-detect-alien-life-in-just-20-hours?fbclid=IwAR1wEHC-DCwmO_NgXYgXvcE3vU-Me_MYDanvffaDm1A1Ip6kg92RWTAJ1aI
"MIPIM 2013: Day one pic round up - Professor Brian Cox" by EG Focus is licensed under CC BY 2.0Показать больше
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