Neil deGrasse Tyson and Janna Levin Discuss the Shape of the Universe
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- čas přidán 19. 06. 2024
- Where is the center of the universe? Friend of show, Janna Levin, explains to us why we're using the wrong coordinates to locate the center. What do a balloon and the Big Bang have in common? What is T=0? All these questions and more are answered eloquently by Levin.
Is the universe infinite? Is there an edge to the universe? Perhaps the universe loops back on itself, and we're seeing reflections of ourselves from an earlier state.
What do the hot and cold spots in the Cosmic Microwave Background tell us about the shape of the universe? Is the process through which the universe got its spots similar to that of a leopard's?
How do we know what our Milky Way galaxy looks like if we've never seen it directly? Levin and Tyson discuss advanced mapping techniques and insights we've gleaned from looking at other galaxies to arrive at our current understanding.
What's going to happen when the Milky Way collides with the Andromeda Galaxy? Neil breaks the bad news that it isn't going to be as exciting as we think.
From an episode of Cosmic Queries, "Edge of the Universe": • StarTalk Podcast: Cosm...
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0:00 - Where is the Center of the Universe?
03:03 - What is the Shape of the Universe?
5:19 - How Do We Know What the Milky Way Looks Like?
6:10 - Colliding with the Andromeda Galaxy
From an episode of Cosmic Queries, "Edge of the Universe": czcams.com/video/Ek3VqAED2wo/video.html
Sounds like the climax of a story. Someone running away from some situation and eventually, atop a mountain and under the darkest night sky, a burst of galaxies colkiding. Maybe metaphor for the collisions in the story.
I think the discussions with Jenna, Chuck and Neil some of my favorites. I love her input, and the visuals just add to it. Thanks for your work to everyone who helped put this together.
Jenna is my favorite guest on Startalk.
Janna is amazing. I love how she explains stuff.
This conversation over the universe is perfect to finish my day; it’s fun, exciting and relaxing. I sleep well after watching this 😆 Thank you!
I love listening to Janna💖✨🪐✨
4:00 *A dodecahedron has 12 sides, and an icosahedron has 20 sides.
Janna Levin...
is absolutely the most intelligent woman that lives today....possibly ever....💯❤️
Had the immense good fortune to see Janna give a talk at the Perimeter Institute back in 2017 and have a brief chat with her after the lecture. Captivating speaker.
czcams.com/video/kdoxAdvvom4/video.htmlfeature=shared
Always a pleasure to listen to a high-level conversation like this. It's very inspiring and exciting for those who love science. Thank you for the scientific dissemination, folks. A thousand times better to consume enriching and scientific content than frivolous videos on TikTok and the like.
Why have a meaningless conversation when you can have a meaningful one?
This has to be on my tomb stone when I die.
Always a pleasure to listen to these three amazing people!
Neil,Chuck,and Janna, y'all rock! Love this stuff. Peace ❤
This sounds exactly like a black hole ripping itself apart and expanding into the space around it.... 😮
Dodecahedron is a 12-sided shape. A 20-sided shape is an icosahedron.
Listening to those talks is always such a great pleasure.
There's the problem of, if the universe has no edge, then it must loop back on itself at some point or something, unless there simply is an infinite amount of space & stuff in the universe. My gut tells me that we will find some paradox like with measuring information around black holes, and we'll discover that we can never find out and measure around [or at least not travel to and find out] where any possible looping back point of the universe might be, because perhaps we'll have to transit extra dimensions in order to do it, and perhaps accessing those hidden dimensions would require going back in time toward the beginning of the big bang
This is interesting! More of the "Internet Edit" style than the other channel, but a tight remix with beats, kinda, and music on them.
This is channel may be a great source to link for explainers!
Great job as always 😊
Always glad to hear what Janna ha to say, of course I love you all!
So much to discover... And learn.
I liked that. Very cool
Jan Eleven is my favorite super hero!!! ❤
Love her !
This whole discussion of the genetic variation of the spots and the comic relief of Black Panther, is actually a lived experience of being able to know how another said group is going to react to a situation, based on their “spots”. It is not pre-judging, it is self-knowing what my own “spots” are telling me and it’s generalized action across time and space.
Hi, Can someone tell me where that background music is from!!? It is really beautiful at rhe end of the video.
Improline - Dreamers 🌠
The music is a bit slowed in the video!
She is close to my thinking but not close enough. Very clever Lady.
The center relative to what Neil?
What coordinate system?
The Soundtrack though😉
Love love love
So please, this is a personal experience that myself and other family members have reported, it seems these hot and cold spots of the Universe may be detectable through the lens and sensation of the human collective behavior and psyche. Both my Father and I having not been alive during the original Nakba in the Middle East, have the distinct sensation of “Oh my God, Not THIS AGAIN”
hold on, gotta roll one real quick for this.
2:26 hold on, we've got a badass over here!
Jana levin is hot ❤❤❤
I think the 92Billion year dimension needs further explanation.
if space is a dodecahedron.....
Then I rolled a natural 20....
...and....proof the gods play D&D...😎💯
So, is she saying that the universe is bounded then??
So are the hot and cold spots responsible for the color variation in people?
I decided I'm going to hang out. Untill we reach Dr. Brian Greene 's 28th floor.
We know the universe is expanding can we study the paths of everything we can currently see in the observable universe to determine the location of where the big bang occurred?
Fra Gi Le 🎁
If the universe is expanding couldn’t you calculate the center by measuring how the galaxies are moving?
If some astronomers and astrophysicists tell us: "With our observations, we can go back to 10^(-43) second after the big bang and we are very close to the beginning of the universe.", I then ask them next question: If an extraterrestrial craft in the shape of a tesseract hypercube lands on Earth and unfolds into a tesseract hypercube's net with a written message challenging you to return the tesseract hypercube's net to its original dimension 4 hypercube form, will you then be able to take up the challenge?
Yes, at that point you then say "get to the choppa!"
@@mac2654 Complement of relativity
Relativity was introduced in physics by the Galilean principle of relativity in the early 17th century, and Albert Einstein formulated the postulates of special relativity in 1905 ; and he developed special relativity using Lorentz transformations. Then Einstein formulated the equivance principle and developed general relativity using Riemannian geometry in 1915. After that, Karl Schwarzschild in 1916 and Roy Kerr in 1963 solved Einstein's equation of general relativity ; but their solutions proved the existence of gravitational singularities in the universe, and on these gravitational singularities, some terms of the Schwarzchild and Kerr metrics become infinite.
But, in recent decades, some astrophysicists have tried to circumvent the Schwarzschild and Kerr singularities by using Eddington-Finkelstein coordinates to allow massive particles to cross the event horizon of a "black hole." . If they were right, they should also have abandoned the Lorentz transformations in special relativity and looked for other transformations that would allow massive particles to exceed the speed of light in the vacuum while maintaining the invariance of the physics' laws in all inertial frames of reference.
Thus I complete Albert Einstein's general relativity by formulating the following postulate 《All the shadow of a "black hole", whatever its mass, is a gravitational singularity, and no massive body, which is not a "black hole", can reach the event horizon of a "black hole". And beyond the event horizon of each "black hole" there is a large closed iron door, which is one of the gates of the First Heaven, which is the first of the Seven Heavens.》.
U.H.
@@mac2654 On the nature of "black holes"
A "black hole" is an astrophysical object at the level of which the equations of general relativity give infinite values; he constitutes a gravitational singularity in the space-time.
So, why have some astrophysicists tried to study what is beyond the event horizon of "black holes" using unrealistic models of gravitationnal quantum physics, when the quantum physics study matter at the subatomic level, while a "black hole" is an astophysical object that belong to the univers which is a macroscopic physical system that is subject to the entropy and the arrow of time?
And why is an astronaut or an object that falls into a "black hole" always represented falling there vertically without passing through the accretion disk, when it should describe a spiral trajectory around the "black hole" and therefore necessarily pass by its accretion disk, like what happens to a comet before it is disintegrated by the Sun?
Indeed, as Albert Einstein postulated in 1905 that the speed of light in the vacuum is a fundamental constant of physics and that it is a limiting speed independent of the speed of the source that emits the light and that no massive body can reach the speed light ; so, I postulate that, all the shadow of a "black hole", whatever its mass, is a gravitational singularity and no massive body can reach the event horizon of a "black hole", and I assert that beyond the event horizon from each "black hole" there is a very large closed iron door which sits at the base of a tower of an enormous fort built using an extremely strong and compact material. This fort is more than 120,000 light years high, and it surrounds the entire First Heaven, while the solid ground of the First Heaven is the roof of the universe and there is no intergalactic void. And in the First Heaven there is the House of Glory , Hell, and great white palaces.
U. H.
@@mac2654 On the begining of universe
The Big Bang theory, which is the standard cosmological model, is not realistic.
Accoding to the Borde-Guth-Vilenkin's theorem, the universe's expansion proves that the universe had a beginning. But the universe's expansion doesn't determine the initial conditions of the universe.
Because to determine the initial conditions of a physical system, someone must be present at the initial moment to know the initial state of the system.
Morever, the universe is a macroscopic physical system which is subject to entropy and the arrow of time; the origin of the universe cannot therefore be studied with quantum physics which studies matter at the subatomic level.
The universe was born 4.5 billion years ago.
At that time, a huge mass, extremely solid and compact, was formed. This mass - or hyper-ellipsoïdal primitive egg - contained icy water, rocks, and other elements. Then the mass was split in two with very high energy; this division released a huge amount of rocks, gas, dust and radiation. Afterwards, the Earth, the Sun and the Moon were formed first, then the other planets of the solar system, the other stars and planetary systems, the galaxies and the Seven Heavens. All this was achieved on six days.
And the universe was put into accelerated expansion 4.5 billion years ago.
U. H.
@@mac2654 The detailed deep-field observations from the James Webb Space Telescope have made the scientific community doubt the validity of the big bang theory.
Morever, the cosmic microwave background does not validate the big bang theory because in 1965, the German physicist Hans Bethe misinterpreted this background noise of the universe and some evolutionary and Darwinist physicists and astrophysicists who have the power to decision in the scientific community immediately considered that this false interpretation of Hans Bethe is an absolute truth.
Indeed, the cosmic microwave background has been caused by the cracking of the Heaven.
So, Heaven is cracking because the Seven Heavens are filled with angels who pray God and who are ready to carry out his orders - to recover the souls of human beings, jinn and animals who are in agony; make the Earth shake in certain places; throwing shooting stars at the devils sent by seers or sorcerers to listen to the information from Heaven transmitted by the angels who descend to Earth; make the rain fall... - until the Last Judgment Day.
Cf. Echevarría, Ana (2012). "Liber scalae Machometi". In David Thomas; Alex Mallett (eds.). Christian-Muslim Relations: A Bibliographical History. Vol. 4 (1200-1350). Brill. pp. 425-428.
Don’t ya hate it when reality proves to be a debbie downer. But, none of us will see it anyways unless there’s a breakthrough a life lasting 5 billion years. Oh man.
POMEGRANITE
😘
On the nature of "black holes"
A "black hole" is an astrophysical object at the level of which the equations of general relativity give infinite values; he constitutes a gravitational singularity in the space-time.
So, why have some astrophysicists tried to study what is beyond the event horizon of "black holes" using unrealistic models of gravitationnal quantum physics, when the quantum physics study matter at the subatomic level, while a "black hole" is an astophysical object that belong to the univers which is a macroscopic physical system that is subject to the entropy and the arrow of time?
And why is an astronaut or an object that falls into a "black hole" always represented falling there vertically without passing through the accretion disk, when it should describe a spiral trajectory around the "black hole" and therefore necessarily pass by its accretion disk, like what happens to a comet before it is disintegrated by the Sun?
Indeed, as Albert Einstein postulated in 1905 that the speed of light in the vacuum is a fundamental constant of physics and that it is a limiting speed independent of the speed of the source that emits the light and that no massive body can reach the speed light ; so, I postulate that, all the shadow of a "black hole", whatever its mass, is a gravitational singularity and no massive body can reach the event horizon of a "black hole", and I assert that beyond the event horizon from each "black hole" there is a very large closed iron door which sits at the base of a tower of an enormous fort built using an extremely strong and compact material. This fort is more than 120,000 light years high, and it surrounds the entire First Heaven, while the solid ground of the First Heaven is the roof of the universe. And in the First Heaven there is the House of Glory , Hell, and great white palaces.
U. H.
This ride called life is close to 99% nothing and should be 99% off ticket price
Dodecaheron=D&D 🎲 =God's 🎲? Lol
Isn’t the center still here? It’s just bigger now and we call it the universe.
so the Earth IS at the center of the Universe!
Thats why the Aliens come here lol
Science meets the Holy Scriptures
At the time of the creation of the universe on six days (Sunday to Friday inclusive) 4.5 billion years ago and beyond the event horizon of "black holes", science meets the Saints Scriptures (the Torah, the Gospel and the Qur'an).
So, when Galileo said to the cardinals during his trial: "Let us tell you how heaven is and tell us how to get to Heaven.", he was a little wrong; because after having definitively proven the existence of "black holes" by photographing the shadows of the "black holes" M87* and SgrA* and their accretion disks, astronomers and astrophysicists have shown us where are located the doors of the First Heaven who is the First of the Seven Heavens.
U.H.
On the begining of universe
The Big Bang theory, which is the standard cosmological model, is not realistic.
Accoding to the Borde-Guth-Vilenkin's theorem, the universe's expansion proves that the universe had a beginning. But the universe's expansion doesn't determine the initial conditions of the universe.
Because to determine the initial conditions of a physical system, someone must be present at the initial moment to know the initial state of the system.
Morever, the universe is a macroscopic physical system which is subject to entropy and the arrow of time; the origin of the universe cannot therefore be studied with quantum physics which studies matter at the subatomic level.
The universe was born 4.5 billion years ago.
At that time, a huge mass, extremely solid and compact, was formed. This mass - or hyper-ellipsoïdal primitive egg - contained icy water, rocks, and other elements. Then the mass was split in two with very high energy; this division released a huge amount of rocks, gas, dust and radiation. Afterwards, the Earth, the Sun and the Moon were formed first, then the other planets of the solar system, the other stars and planetary systems, the galaxies and the Seven Heavens. All this was achieved on six days.
And the universe was put into accelerated expansion 4.5 billion years ago.
U. H.
So there is a Unique, Almighty, Omniscient, Eternal Creator, who created the Earth, the Sun; the Moon, the stars, the whole universe and the Seven Heavens on six days - from sunday at the daybreak to friday just before the sunset at the time of Mekkah - from nothingness, 4.5 billion years ago.
james web proving you fools wrong every single day!!!!! Neil turned woke and i lost all my respect.
Smh. A balloon? Find the repetitive code of life behaving like a balloon, and then maybe this will make sense...
The Big Bang isn’t about the creation of life it’s about the creation of space and forces.
Life comes much later.
It is so hard to listen to an espresso junkie twitplaining theories in absolutes that can't be proven.
Andromeda... meh. I'm hoping Betelgeuse exploded 724 years ago. Pretty sure we'd see that. :)