Leonard Susskind - Why Black Holes are Astonishing
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- čas přidán 23. 04. 2024
- Black holes warp space and time, squeeze matter to a vanishing point, and trap light so that it cannot escape. Black holes, with masses millions or billions times that of our sun, sit at the center of galaxies. How can black holes perform such stupendous tricks, and what can we learn from them?
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Leonard Susskind is the Felix Bloch Professor of Theoretical Physics at Stanford University, and Director of the Stanford Institute for Theoretical Physics. He received a BS in physics from City College of New York and a PhD from Cornell University.
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What a fascinating discussion between Jeff Goldblum cosplaying Steve Jobs, and amateur theoretical physicist John Malkovich.
Spot on!
So basically, the most accurate comment that exists on the internet. Well done good sir.
Amazing thing is that I thought the exact same thing, before even seeing your comment. The resemblance and the mash up,makes me think,they fell into a black hole,and somehow those two made it out,and decided to talk about it.
😂😂😂😂 Dead On!
💀
Interesting interview with Dr. Susskind. Now to the comments section to see what the experts have to say.
Haha 😂….So far, no viscous name calling !
@@Richard-vu7kh earth is flat
@@visitante-pc5zc Oh dear..
@@visitante-pc5zc your brain is flat
@@jeannedarc7533 more like dead...
The world needs more scientists like Leonard Susskind. Such a great communicator for such complex subject. He makes us understand the universe just a little bit more.
The world needs more scientist in general and less tick tokers
@@words007 so true
Wal Thornhill is better
Sus
@@j.pershing2197Never heard about him.
Leonard Susskind is simply the best! He can explain such a complicated phenomenon in really simple words which are understandable to practically anyone. Infinite kudos to him! He is my favorite lecturer.
Too bad this is actually John Malkovich
I want to know what Dr Susskind does to keep his mind so sharp. He's 81. Amazing.
It looks like he thinks about quantum physics and works out lol
He does theoretical physics...
The guy is a genius lmfao
He's sharp as a tack
You're watching it. He keeps talking about and learning about these things and reiterating his understanding with every conversation.
"A chicken, a duck and a physicist go into a black hole..."
No punch line yet.
"Calculations of a clam chowder dawn reach into the outer limits exploiting the mysteries of seaweed kept busy in a bookstore. Black holes shape your vision of seagulls converting energy into mass and genetic prices rushing into a grape jelly future. Caffeine-free snow drifts will ward off alien intervention and annihilate rubber-band monitors, expanding a diversity of goldfish trained in clinical psychology left intact."
---Albert Einstein
Fact checkers say..."Correct!"
"Fact checks can be checked because they're checkable by checkers."
---Albert Einstein
"It is the Will of Landru."
---Albert Einstein
Its an inside joke...
I'm a big fan of this guy. His CZcams classes are fun and enlightening. I'm so old I'm proof that it's never too late to learn challenging stuff. I hated physics in high school. It wasn't as interesting as girls, pool, or baseball. But it's how things work, and I'm having fun with it in my ...ah....golden years.
31 year old dude here, and just getting into astrophysics and gravitational waves. Had my fun already (even though I was into opposite from you: guys, guitar and drums.) space is fuckin awesome.
That was one of the best, easiest to understand illustration of falling or watching someone fall into a black hole. What a great teacher.
The interviewer is awesome, asks great questions then lets them talk
True, but strange there are such long shots of him, even we he doesn’t talk.
@@KCOtutti1 They're not actually that long, it's the time distortion of a nearby black hole taking effect
@@davetherave303 😂😂😂
Interviewer did a fantastic job of listening, even though it seems like he knows a lot of whats being discussed already.
@Typhoid Mary LOL
I dunno. His two interjections kind of bothered me because I wanted to hear how Susskind was going to describe them. For example when he blurted out, "the point of no return", I didn't think that is what Susskind was describing--even though it's true of black holes and Susskind went with it. What I thought he was describing was "the point where information is no longer transmissible". We all know there is a point where gravity in inescapable, but this didn't seem to be the crux of his analogy.
@Typhoid Mary Going to have to invoke Poe's Law here.
@Typhoid Mary STFU
Probably because it's mainly for the viewers education.
This interviewer whose name ive forgotten is brilliant! He knows a lot about the subject but lets people who know more and who can communicate fascinatingly about their subject communicate!
Quincy Stagglehorn
Id never have figured that sound, lakes, and polywogs would give me my first real appreciation of the event horizon.
Best most comprehensive breakdown I've heard from any physicist.
And completely wrong.
Agreed
@@buddysnackit1758 care to elaborate ?
@@soumyojitpal3399 You can read elsewhere in this thread (immediately below for me...but that is probably just my view).
Even in this talk he gets it wrong.
A thing stays visible at the event horizon forever? Really lets look at that.
OK So the event horizon according to Susskind is because the object is being pulled in faster than C. And that light carries momentum and will never reach you. So light is completely a particle then! But no! It is not. Light is emitted by mass by vibrating what you call the fabric of space. Just like a jet in the sky. Do we suddenly not hear supersonic jets? No...we still hear them. Even though they are going way faster than sound...because the media carries the signal. The signal isn't particles shooting out of the jet to our ears. The sound proves this.
So the ONLY other thing that could be happening is that the light is being pulled either directly or the media itself was being pulled. If it were the media (fabric of space) and we believe in an expanding universe, then you would at a very high speed see things being sucked into black holes.
But Susskind and all the Big bangers (Similar to flat-earthers) do not realize how the universe works. The reason black holes are black is because of a upward shift in frequency of light far beyond gamma rays. This can happen because time-space (ether field) is much denser near a black hole because it creates ether. When that super high frequency light travels to less ether dense space the signal can no longer be carried. This loss of signal makes the black hole appear black.
Supporting evidence.
Matter getting sucked into a black hole and emits a gamma burst. It does this as it enters more ether dense space until it too is clocked too high and signal is lost.
Pulls can not exist. So how else does a black hole become black. My theory is THE only game in town that fits.
If the black holes are sucking in space then this should counter the expansion of space and we should be shrinking because this would be an immense power.
Background radiation is from something described as a "blackhole universe". Not quite right except that black holes and this frequency mismatch are the reason.
@@buddysnackit1758 ahh, that one guy who claims everyone else is wrong, and I am only right
its so nice when the interviewer doesn't interrupt the speaker constantly
Are you an NDT hater :)
2 things fascinate me, black holes and even more Leonard Susskind, just a brilliant man, i cant fall asleep listening to his lectures....
As always Mr. Suskind is a joy to listen to. He just tells it so well.
I love how he explains things - It allows us non-physics to not only understand but also have a fascination and yearning to learn more about black holes. Thank you!
He started his working life as a plumber, and now has this moniker 'Susskind the Plumber' with his peers.
@@paulmoffat9306 Love it!
He’s a wonderful teacher
سَأُصۡلِيهِ سَقَرَ ٦٢
I will drive him into Saqar.
وَمَآ أَدۡرَىٰكَ مَا سَقَرُ ٧٢
And what can make you know what is Saqar
لَا تُبۡقِي وَلَا تَذَرُ ٨٢
It lets nothing remain and leaves nothing [unburned],
لَوَّاحَةٞ لِّلۡبَشَرِ ٩٢
Blackening the skins.
عَلَيۡهَا تِسۡعَةَ عَشَرَ ٠٣
Over it are nineteen [angels].
Above verses are from Al -Quran, Chapter 74. Surah Al-Muddaththir
"There are signs everywhere for people who believe."
May Allah open our hearts for truth & peace.
Humans are incapable of many things. What's in Heavens & on the earth is governed by law of Allah. Laws of Physics do not apply at many many places. Even on earth. And there is no explanation for it.
If you doubt it then indeed, death is the reality and we shall meet our lord. The only one who created us to obey him and respect every other human being.
Ameen.
Now you know why you can never get a hold of a good plumber.. They're busy solving quantum theory .. 😁
Good one!
And they think about black holes in terms of plumbing. "Imagine if the kitchen sink was infinitely large, and water was sucked out of it at a speed greater than sound."
@@Baekstrom 😂😂😂
🤣🤣
LOL
He literally answered my question in the first 60 seconds (why are we so fascinated with black holes/ are they useful).
He answered that. But I could keep listening for hours…
Wow, that was an amazing description of black hole I’ve ever heard. The analogy of limitless lake for black hole was the most ingenious method to describe the black hole. That was a brilliant analogy. Thanks!
My cat understands this very well…..if I mix chicken together with duck in his food dish, he will NOT eat it. He understands he must not confuse the information as it enters the black hole of his appetite.
I used to feed sparrows when I worked at a park. Peanut butter crackers. They learned to come when I whistled...hahah...come in like a big cloud and gather around me. They wanted Lay's brand not Tom's. Tom's were cheaper of course. I could crunch them all up together and they would pick out all the "good" stuff.
😀
maybe he knows what happens when it comes out the brown hole and he doesnt wanna go through that
That equals 2 years of my high school boring physics classes.
I enjoyed every moment!
Every...single time I listen to Leonard Susskind talk, I end up taking away an idea that I cannot ever forget. Every..time. What a mind.
"You just don't remember
I'll never forget".. Yngwie Malmsteen
After watching a hundred videos in black hole and still being confused … I now have some clarity thanks to this man
Susskind is my favorite physicist.
For one, he is a great explainer.
He is more interested in *YOU* understanding what he is explaining than making himself sound impressive.
Douglas Adams and Terry Pratchett are also really good at that and in very similar ways. Only making the idiocy of it just a little more obvious because you know they are writing fantasy/fiction.
Poignant
He was a plumber in the beginning, what a life, Leonard.
Leonard Susskind is amazing.
Masters explain scales in a perspective that includes history, humanity was aware of foundational questions since its dawn.
This analogue with sound should be highly respected.
Always an honor with your thought processes.
Thank you so much.
In time, maybe there's no delay in this comment 😉
And here I was thinking the “point of no return” was Taco Bell’s drive-thru line…
Nah its when you don't pull out and get a girl pregnant
😂
Black holes are astonishing. I’ll be feeling one this weekend.
B r u h
Under rated comment
I‘d check with your doctor first.
@@billfromgermany you mean after*.
@@pmcdermott4929 👍😄
i love that this brilliant man still has his bronx accent.
"We are now in a position where we have to reconcile this. We have no choice. Oh, of course we have a choice...!" Such an appropriate remark in relation to determinism yielding to new concepts
I love the fact he talks about Galileo's experiment to combine two disparate worlds and then he uses a combination of plumbing and quantum physics to show a dumbass like me what's going on in the universe.
He speaks an English we can understand. ☺
Douglas Adams and Terry Pratchett are also really good at that and in very similar ways. Only making the idiocy of it just a little more obvious because you know they are writing fantasy/fiction.
I hope that helped, mostly for not thinking of yourself as a dumbass ;-)
Just wrong reference! Throwing rock Wasn’t Galileos but mewtons idea.
@@live4Cha I can't believe we are the only 2 people that caught that.
1
This is the sort of interview that makes this particular channel worthwhile.
exactly
Channel is evidence of the conflict of two principles. It has the conflicts of fantasy and sensible.
For sure
Seriously? Blackholes are nonsense
You can find this sort of thing all over the place. I love his social work more
At exactly 10:00 when the interviewer asks "that's through a quantum mechanical effect" Leonard gets so surprised but also excited that he knows :D
Susskind is such a riveting speaker.
His use of relatable analogies is the signature of a good teacher. I think he could make sense of a lot of quantum mechanics that baffles most of us.
Agree with you totally. MeenaC
Douglas Adams and Terry Pratchett are also really good at that and in very similar ways. Only making the idiocy of it just a little more obvious because you know they are writing fantasy/fiction.
@@ResurrectingJiriki hmmm. Now I’ll have to go back and reread Hitchhiker’s again just for that.
@@PureNRG2 If that's what you feel you need to do to see that Susskind is talking pure fantasy, please do. And enjoy, obviously XD
@@ResurrectingJiriki I apologize. I didn’t realize I was responding to someone who believes theoretical science is fantasy. Now back to my fantasy wireless computer.
That's why Leonard Susskind is so important, he explains in everything in "your" words !
And we people can understand the Universe.
I hear he molests
Wow! That "both domain" theory about black holes hit me like a rock!! I get it!
Dr Susskind is such a great speaker.
Existence itself is mind-blowing and fascinating........ Black holes are just the icing on the cake.
black holes do not exist
@The star Moses Brown and the Boston Celtics : Im sorry but that is the Dumbest thing I have heard from a religious person, Really ?
@The star Moses Brown and the Boston Celtics Ummmm, God's work isn't hindered by people choosing certain career paths. Observing what's out there only fulfills our God given purpose here on Earth. Which is to learn and grow!
@The star Moses Brown and the Boston Celtics Learning and growing helps us become more like him. So Yes! God doesn't hide knowledge from us, nor does he forbid us an education. Our purpose is to prepare to return to him. How do you glorify God if you don't know anything about him or his creations?
@The star Moses Brown and the Boston Celtics It's no surprise that you know very little.
The shots of the interviewer just bobbing his head up and down while the other is talking are hilarious
yes, but you should see his suspicious look when the interviewee is talking BS (plenty of these BTW)
best part. he's engaged
I gota turn the phone away when I watch cuz of this
This what I do when someone asks me a question
He looks like a weiner
This guy is incredibly pleasant to listen to.
I love these talks even though i understand it on a basic level. It makes me feel smart and fascinated.
This is the best explanation of the black hole ever! Using sound as metaphor is a great way to understand this curious phenomenon. Thanks!
Why? Both light and sound are part of the electromagnetic spectrum. It’s actually a very poor analogy. He is no Feynman.
@@daraquinn5260 - um... I think you need to scrub up of your physics.
Analogy* but yes it was brilliant helped me a bit too
I think it's an even better analogy than it appears on the surface. Where does that poor fellow, aka the information, go? Have you ever had a pen and paper and scribbled a dot so hard until you ripped through the paper? I think black holes are 3D tears in the paper, and the information falls into the 4th (or next higher) dimension. How 'bout that? :O
@@daraquinn5260Loser
Leonard Susskind is my hero,
this guy is so forward thinking,
I actually have his name tattooed on my arm so I can enjoy and remember his teachings forever,
I’ll never forget your notions as a result. Thank you for changing my full outlook on reality Dr Susskind. Knowledge negates fear!
I will truly never understand tattoo people
@@ummmno3871 Same here, I support their freedom.. but I'd rather wear my current thoughts on a tshirt.
@@ummmno3871 Or bumper sticker people.
No, you do not have his name tattooed on your arm. Stop lying for attention and likes.
So... so you have "susskind" tattoo'd on your arm?
3:12 interviewer caught using earbuds listening to music. Can't stop nodding to the beat.
THANK YOU... DR. SUSSKIND...!!!
There are teachers and then there are teachers like Susskind or Feynman.
Or me, i am also good
@@sinisa5567 This is true
.
amen!
@@sinisa5567 very true senpai
Absolutely wonderful video! Dr. Susskind is a brilliant teacher. It would be much appreciated if you could ask him to provide a plain English explanation of his string theory for one of these videos. Thank you.
Not explainable or understandable or maybe even valid (theoretical)
The sound and tone are in the fingers and Wolfie inherited them all from his dad. He sounded amazing.
AMAZING video!!
Brilliantly articulated
I read or watched few things about black holes, this was the best way of describing it to a general public member like myself. Thank you.
Douglas Adams and Terry Pratchett are also really good at that and in very similar ways. Only making the idiocy of it just a little more obvious because you know they are writing fantasy/fiction.
when we were in highschool physics, my friend, last named Rays went to visit his grandmother in Florida. He returned sunburned and we asked him if this was because of grammarays.
Wot
Hulk smash 😂😂
Not bad not bad
Hahhaha! Dang!
We? Was it collective thinking, Did you all ask simultaneously?
As someone else commented. What a privilege to listen how something so complicated as Black Holes can be explained to us less gifted and yet leave one with a whetted appetite for more. Many thanks 🙏🏻
thank you for posting this it was most excellent I've been obsessed with black holes ever since I was a kid so thank you very much it was very different to hear and see theorized and a different point of view
Fascinating interview. I've never heard things explained this way.
How beautifully explained. What a great teacher
You girl or a boy??
Splendid interview! It's so so kind of Dr. Susskind to illuminate on this luminous topic that light and other objects with "information" embedded within of not being able to escape the stranglehold of the black holes. Yet they expand our 'horizons' of understanding the principles of contemporary physics and even help amalgamate the old with the new.
Information isn't lost. In fact, nothing is ever lost. From the absolute (say the absolute zero Kelvin) arise the "quantum jitters", like Shakti (Nature) arising out of Nothing (Shiva)! Be it the Big Bang or the Big crunch, information will be ever etched in the fabric of the DNA of the Cosmic Consciousness, like the Akashic records (Boltzmann's brain).
Amalgamation and interchangeability is nothing new. The wave and particle properties of light and even macrocosmic objects can be boiled down to the quantum properties of wave function and its collapse thereof. Advaita (non-dualism) vedanta had long proposed the idea since the ancient times by the great Indian sages. Erwin Schrodinger, Werner Heisenberg, Albert Einstein, Aldous Huxley had experinced it ituitively and dwelled on it.
We are not just particles, merely confined to some location in space, rather we need to think of us in terms of waves spread out over the whole Universe. Professor Sean Carroll had once said in a lecture that physicists won't tell you this fact that we are waves in reality and not just particles.
We ever live. We don't die, ever!
"There's got to be
Just more to it than this
Or tell me, why do we exist?
I'd like to think that when I die
I'd get a chance, another time
And to return and live again
Reincarnate, play the game
Again and again and again and again" .... Iron Maiden, Infinite dreams
Great explanation.
I once read of a theory that said black holes ‘seeded’ other universes: the information that was sucked into it came out again, on the ‘other side’, in another universe. It has always stuck with me.
They're in this universe. It's a point, not a hole.
Maybe what they have observed as blackholes are similar entities as the theoretical blackholes, because blackholes only exist in theory.
It's like saying something travels at the speed of light, where in our world such things don't exist.
A hole into another universe is just a theory. it assumes that our space-time fabric can be punctured. Suppose Space-time is infinitely elastic. Nobody knows and we will probably never know.
@@rocren6246 black holes aren’t a theory when we have photographs of them
This guy looks like he could play Archimedes, Galileo or Da Vinci perfectly
John Malkovich?
I would love to see him as da Vinci with a heavy NYC accent.
Or Leonard Susskind even.
Except when he talks ...
"Infinite lake".
Alright.
"Drain in the center."
Lost me man.
Drain in a place kinda like a center I guess lol
For the model, just start with a bathtub with a drain, but imagine a round bathtub with a big drain in the center. If you put a rubber ducky in the bathtub away from the center, it hardly notices the movement of the water towards the drain. But if a rubber ducky floats near the center, the rushing water will pull it down the drain.
Now just imagine a bigger bathtub, and then an even bigger bathtub... An "infinite" lake just means the bathtub is so big that most rubber duckies will never encounter the drain, or even notice it, because they're so far away from it. But the drain is there, and every once in a while, an unlucky rubber ducky will unhappily float too close and get swallowed.
I was just about to comment something like this before I found your comment. I get what he means by this (as some here went to great length to explain). But I think what you're getting at (and what I was thinking) is that from a purely mathematical perspective, it makes no sense.
@@chrissekely I think what you mean is that from a purely _physical_ perspective it makes no sense. It is only from a purely mathematical perspective that reasoning about infinity does make any sense.
@@kdub1242 Thanks for the response! But no that's not what I meant. Maybe that's what I should have meant though. I do understand how anything infinite makes no sense from a physical perspective. You've totally got me there. Please explain, though, how to even in a purely mathematical sense find the center of an infinite plain. Please understand that I'm not upset at all. I really enjoy this sort of exchange of ideas. Please let me know where you might take this from here.
Could listen to this all day.
This man is a hero
I could listen to Leonard for hours.
Which hours specifically?
@@b.g.5869 yesterday's hours
You can. czcams.com/users/stanfordsearch?query=s%C3%BCskind
I'm like that with music
This is such a *fantastic way of teaching the material!* Stellar! 🙌🔥
"Stellar"....ㄥ丨ㄒ乇尺卂ㄥㄥㄚ!
Quasi-stellar, even.
There's no violation if you include higher dimensions to explain the 'loss/conservation' of information!! Great videos!
The lake analogy is wonderful
I so wish I had teachers like this in high school and university.
I hated school and they hated me right back….SO I WENT TO CLASS half baked🥴
they don't teach anything useful.
Well, this is the edge of knowledge as far as theoretical physics is concerned, and it would be really something when we do reconcile the two understandings of the very big and the very small.
That will be the day that things change forever. I hope I’m around to see it.
@@darksu6947 very true; because once we understand how the very small makes the very big, we just might even understand what is consciousness! Everything changes after that!
You would still be lost.
All of Creation begins as THOUGHT and expands outward in DENSITY. Focused thoughts create the energy molds(thought forms) within the nonphysical dimensions and act as the sub structure for matter.....Black holes lead to that sub structure...thats where our physical Universe originates from...to travel through a Black hole...to the "other side" if you will,you would have to give up your "physical dense form" and transform into your much finer ,higher vibrational energy form...after you get to that realm...there are even finer realms to explore and experience...sounds all woo-woo I know, but its REALITY!
@@balaji-kartha EVERYTHING originates from CONSCIOUSNESS.....but that's another enigma like Black holes isn't it?
Explained poetically and elegantly. Wow!
I always refer to mr. Susskind as the plumber physicist, in my own opinion he is a true genius,humble to declare that he was wrong on the multiverse theory after he was one of the most influential people on it,but he keeps on going looking for the truth.
If we were to meet I believe that we can really be friends.
And yet he's saying a theoretical thing nobody has ever seen or proven is amazing.
Best explanation on black holes I’ve ever heard ✨
"Information is not allowed to be lost"
To my brain: "Why can't you give me the information that I know you knew? Do not say you forget, you're just not telling me. Do not prank me always."
Inside the book of Enoch is information about stars, galaxies, and black holes. This book contains a code and key set to understanding how to decode the message given from God about revelations. We must unlock the truth. If you read the book of Jude, 1st and 2nd Peter you will see that much of message as clues on how to decode it. When you read them look at the similarities of the words used. They are almost identical.
Wow! Thanks for the clarity
Black holes have always fascinated me since I was 13-year old from the time my much older friend Vivek Rao, an Electronics Engineering student from IIT, Madras, explained it to me.
These great scientists explain it in such a simple and interesting manner. Thanks.
I know him. That’s crazy. Famous guy!
3 mins in and already blown away I thought the video is done.. Never been happy to discover h
There was more to go
A great physics storyteller! 👏
man, not sure about all that cause i m clueless but this a reasoned seasoned person
We need more teachers like Leonard Susskind.
Thanks John Malkovich, for this great explanation, great physicist and better actor!
shaking my head on the fact that so many of you don't know who Lenny is... perhaps the most underrated physicist of our life time, I guess.
Rather than losing the information, could the singularity just become a gateway to transfer the information to another bubble universe. Love these discussions with this super intelligent and easy to follow Doctor Susskind.
Bro no one said that you’re smoking ganja
Roger Penrose doesn't seem to think so.
You guys are amazing. Thank you.
I used to listen to his lectures on quantum mechanics when I worked in a warehouse; an excellent teacher.
Bro if u understood a thing u wouldn't be in a warehouse would u 🤣
@@geert574 Why? I worked in a warehouse, and now I'm doing a PhD in physics.
What theory was it that convinced the camera operator to focus so much on the guy who wasn't actually speaking?
To tell us how focused we should be
The camera operator is in love 😻
it was an attempt from the cameraman to show how big of a clown he is.
Thank you. I thought I was the only one who found the constant camera shot on the interviewer to be annoying. Perhaps he was looking for the eye roll when he is discussing quantum physics and then suddenly switches to giving a talk to an elementary school about polywogs, tadpoles, chickens and ducks.
You mean the editor cutting in reaction shots... they linger too long, but that's an editing issue and has NOTHING to do with camera operators.
This guy is a great talker and explainer
Seriously
This is the kind of thing that should be on prime time network television instead of all the reality tv game show slop we have now.
Top Class elucidation. Hats of to you gentlemen. Please share more such videos.⚘⚘🌺🌷👍👍
This is so frickin' COOL and terrifying at the same time!
I didn’t get the right physics break down of what I was looking for lol, but I’m glad about what I found. It shows how much we think we know about black holes but still so far from ever actually experimenting and learning all of its true properties. If we knew everything we desperately want to know to know about the event horizon we could probably learn how to use that area to manipulate the singularity and use the black hole as a whole to provide endless energy.
I know we barely know enough about black holes, but white holes intrigue me. I feel that universes are created from matter and gas that was digested by a black hole, juttering through the otherside of the conduit.
@@atrocious_pr0xy I'm thinking along similar lines. The common theory is that black holes are the result of a collapsing star. That may be true. I am not familiar with the physics of that theory.
But I am thinking that black holes create the galaxies that they are at the center of. It is now known that black holes eject a stream of energy and matter at their "poles". This would create an oblong galaxy. As the black hole rotated over time the oblong galaxy would become a spiral galaxy. This fits the observations of the Hubble telescopes pictures of the early universe where oblong galaxies outnumber the spiral ones. But billions of years later spiral galaxies are in the majority.
This guy looks and speaks like my physics teacher I had wayyyyyy back in 7th grade high school, Mr. Allen. Great teacher ! RIP, Mr. A.
I love the chair he's sitting in. 🙂👍
Black holes may be extremely cold (near absolute zero) to us from the outside, but if the gravity of the black hole swallows up all matter and energy, then how do we know that all that mass and energy inside, which cannot escape the event horizon and is trapped inside, is not in fact extremely hot inside? How do we know what the temperature is just inside of the event horizon? What are the astrophysical jets that come from the black hole?
How do black holes convert mass into energy? Articles about LIGO discovery state that some percentage of mass from black hole mergers is converted into energy, resulting in a black hole that is smaller than the sum of the original mergers. They found two black holes - of 36 and 29 solar masses - merging together to create a new black hole of 62 solar masses. Where did the other 3 solar masses (about 5% of the total system's mass) go? Into the energy of gravitational waves? So, it isn’t that the black holes are losing mass but that the total amount of energy in spacetime is transforming from one form (in two well-separated, unbound masses) to another form (a single, tightly bound mass plus gravitational radiation). How does this process happen? If in the very last second of the merger is where most energy is released (in the form of gravitational waves), then these gravitational waves are pure energy (not particles of any kind)? It is accepted that nothing escapes black holes. So: how is energy radiated from black hole mergers? How are these gravitational waves able to escape black holes?
I’m only typing this in hopes your comment gets more attention.
Soo many questions but no answers 🥲
I'm thinking it has something to do with Hawking Radiation
I don't think anything escapes the black holes until they implode and then explode tearing a hole in spacetime creating a wormhole, where some energy escapes into another spacetime or dimension
yes it could be hot inside. it can also be hot outside. the temperature is that of the event horizon itself, with nothing else around
That was the most fascinating and meaningful program I have watched for a long time. I only wish my own teachers was as clear and entertaining back in the day.
Ive always wondered whether blackholes act like portals to a mirror universe. If the event horizon could be stabilised it would be like a piece of paper 2 sides; a hole in that paper would provide a peep hole to the other side of the paper. Everything in our life and universe has an equalateral balance. Day and night, land and sea, life and death; everything is a cycle. I am a fond believer of the multiverse theory and i hope one day while i still draw breath i get to learn the true nature of blackholes. Universally fascinating
clash of principles, progress begin!
Zthank u for verbalizing this
@ 09:45 Kuhn [smiling]: "Got plenty of time."
@ 10:15 Kuhn checks clock.
I love this channel! So here is my lingering question... If the person, or whatever object that is stuck at the horizon until infinite time, goes about noticing nothing particular, then WHEN and WHERE do its/his/her/their experience happen in OUR universe? At infinity, our Universe is GONE, right, and especially, that thing or person has evaporated through radiation, BEFORE their experience happened!!!? Does that mean that Black holes are some kind of bridge between separate spacetimes? I guess this has already been thought about.
I think it is only the image of the unfortunate traveller that stays at the event horizon.. the person actually carries on falling to the centre.. but I am confused about the block hole eventually disappearing through radiation.. if the radiation is into our universe then nothing is lost and that famous law is unbroken..
It just starts a big bang somewhere else, and the information is never technically "lost"
Wonderful explanation of insights!