COMMON QUESTIONS: *1. "Why does the evaporation speed up over time?"* The wavelength of the radiation is proportional to the black hole's radius, which means the frequency (and therefore the energy) of the radiation must be _inversely_ proportional to the radius. The smaller the radius, the more energetic the radiation and the faster the energy of the black hole goes down. In the last few nanoseconds when the black hole is microscopic, the energy release is absolutely enormous. *2. "What mechanism converts the curvature into particles?"* We don't actually know. To predict Hawking radiation, you have to use relativity and quantum together, which means you have to be _very_ careful. You need some kind of work-around for their incompatibility. Hawking's solution was to use a Bogoliubov transformation, which is non-local math tool. He was able to do his QFT calculations in two different patches of flat spacetime and then just connect them _through_ the curved spacetime of the black hole. It was a genius solution, but it also means there are questions we just can't answer at the moment. We need a deeper model that's consistent with both relativity and quantum before we can find those answers. *3. "Do we have experimental evidence for Hawking radiation?"* We do not. The Hawking radiation being emitted by black holes right now is too low energy to be detected. It's overpowered by all the other radio signals in the universe. All we have as support for it is how consistent it is with the rest of tested physics. The implications of Hawking radiation are also pretty compelling... and quite beautiful in my opinion. *4. "Since all mass curves spacetime, does all mass emit Hawking radiation?"* No. It's not the curved spacetime that's causing the Hawking radiation. It's specifically the event horizon. Since normal objects don't have an event horizon, they can't emit Hawking radiation.

@ahgflyguy

3 жыл бұрын

Nick: "We need better nonsense." Copenhagen Interpretation has entered the chat. Meow. Nick: "No, I said BETTER nonsense, not just MORE nonsense."

@siquod

3 жыл бұрын

Is hawking radiation basically the Unruh radiation you observe when hovering above the event horizon, but due to nonconstant spacetime curvature there's a residual effect even far away from the hole? If so, then hovering at fixed distance from a nonsingular mass you will observe the Unruh radiation that is analogous to the hawking radiation of a black hole with that mass. What exactly would be the difference between the two radiations and in what way does the event horizon make Hawking radiation special?

@sarchlalaith8836

3 жыл бұрын

If a being was 4th dimensional would they be able to see through a black holes event horizon or would the see a complete absence of anything?

@ahgflyguy

3 жыл бұрын

@@sarchlalaith8836 A 4-deminsional being would just look through that part of space either before the event horizon formed, or after it evaporated (if their 4-deminsional extent is that great. There's no reason to guess it is. My 3-dimensional existence doesn't allow me access to the 2-dimensional surface of the far side of the moon).

@alansilverman8500

3 жыл бұрын

@@siquod no, Unruh radiation is the vacuum energy of empty space - virtual particles - that you would collide with as you fell into a back hole's gravitational well. Hawking radiation also comes from the vacuum but converts the mass of the black hole to radiation due to the event horizon altering the quantum field of the vacuum.

"We need better nonsense" is a perfect summary of quantum physics.

@angeloftimelessdispair1340

2 жыл бұрын

Don't worry. Reality isn't even real, by how we define it. And if the universe consists of everything within it. Then I'm technically a singularity.

@Metal_Master_YT

2 жыл бұрын

@@angeloftimelessdispair1340 wut

@arlandblack1139

2 жыл бұрын

This would be incredibly cynical if it didn't have so much basis in fact.

@georgymusic

2 жыл бұрын

*also applies to religion

@navd1488

2 жыл бұрын

@@georgymusic with religion its like we don't need it at all

My favorite thing about you is that you take nothing from granted. A bunch of huge name physicists are like hawking radiation is real and you're like... But what about the huge issues in that boiled down explanation? Then you admit to your own shortcomings as an educator and add that you're learning like the rest of us. That's what makes your explanations rewarding. You went through hell to make sense of it so that everyone can. We need more people with your humility, intelligence, honesty, and work ethic. Thanks for what you do.

@ScienceAsylum

2 жыл бұрын

Thanks for appreciating the effort 🙂

@TheRevAlokSingh

2 жыл бұрын

"Nullius in verba"

@kevinmithnick9993

2 жыл бұрын

Sound like Feynman to me

@nathanmiller9785

2 жыл бұрын

I couldn’t have said it better

@ecospider5

2 жыл бұрын

I never take anything from granite.

Incredible work. You are certainly one of the most underrated science channels out there.

@ScienceAsylum

3 жыл бұрын

Thanks Jon!

@Smitology

Жыл бұрын

And the same can probably be said about your channel (with maths, not science)

Sweet set up dude!!

@ScienceAsylum

3 жыл бұрын

Thanks Jade!

@Kj16V

2 жыл бұрын

Up and at them -Radioactive Man

@angelisvegan5826

2 жыл бұрын

O woah.. I just saw you there at prof Dave explains channel.. he he he

@jamesgornall5731

2 жыл бұрын

@@Kj16V the goggles do nothing!

He teaches just enough for me to understand complex topics but also just enough for me to realise how little i know about anything

@YounesLayachi

3 жыл бұрын

It's the best feeling isn't it. Learning something new but also learning that there's A LOT MORE where that came from

@buzzfeedteen

3 жыл бұрын

@@YounesLayachi lol yes! Its channels like his (even moreso than my course) that remind me of why i love physics!

@dutchraider2

3 жыл бұрын

Yup that's science for you :D. The more you learn, the more you are stunned by how much we 'already know' (or at least the scientists at the moment haha), it's pretty overwhelming. And even that gets overshadowed by how much we still don't know :P

@antonystringfellow5152

3 жыл бұрын

You're not alone! Even the brilliant Richard Feynman once said, "My students don't understand quantum mechanics because I don't understand quantum mechanics." And "I think that I can safely say that nobody understands quantum mechanics." So, what chance have mere mortals like us got? The more we can understand, the better but it's clearly not realistic to expect to have a full understanding of quantum mechanics.

@red-baitingswine8816

3 жыл бұрын

In my case, he teaches me enough so that I suspect that the usual "explanations" (which never make any sense to me) are wrong - and that a solution, which I now almost have a clue about, might be possible.

"we need better nonsense" 😅 this cracked me up

@Gaaach

3 жыл бұрын

When he's right, he's right.

@nicolascalandruccio6069

3 жыл бұрын

Ahah right!

@davidgumazon

3 жыл бұрын

I can't believe nor comprehend Black Balls can bend space-time hard enough 3:34 ~ ref

@adityabhatt4186

3 жыл бұрын

Models are not actually the stuff they are supposed to represent (hence models) So its always nonsensical to look at it through other aspects of what it is trying to represent. That's why models will always be nonsensical what we always need are once that are less nonsensical than the others hence more nonsense

@davidgumazon

3 жыл бұрын

@@adityabhatt4186 it's like boy and girl are more than a friend but less than lovers x'D

Wow, our school system would be so much better if every subject had master class tutorials by amazing teachers like you, who craft each lesson optimally, and actually take the time and effort to understand what it is they teach.

@andrewcarr2431

2 жыл бұрын

train the trainers, spring to mind

I am a professor in Micro and Nanosystems (basically applied physics), devouring your videos and learning new things, or at least new perspectives, in most of them. Keep up the great work! You inspire me to inspire others in my own teaching.

Hands down the BEST description of this I've ever heard.

Outstanding. I have already described Hawking radiation to my students using the common explanation you described earlier, and then I finished with "but these are really just lies to children." I explain that it is a model meant to simplify rather than provide an accurate explanation. Your model is far superior yet still explained in a way that students may grasp it. I will reference another one of your videos for those who would like an improved model!

@Doomfullord

3 жыл бұрын

The quantum buzz of particles is explained as and taken so literally. Its hard explain to people that its just a metaphor of sorts.

@ragevsraid7703

10 ай бұрын

@@Doomfullord how can a metaphor shrink and explode a black hole?

The guitar string analogy is exactly how I learned about Hawking radiation. Makes so much more sense than the particle/anti particle analogy

@ScienceAsylum

2 жыл бұрын

Sounds like you had a great teacher.

Imagine the crazy dynamics of a universe with nothing left but evaporating black holes, who now and then are "refilled" ever so slightly by the explosions of another nearby black hole at the end of its life. We have something like the Game of Life going on for real where each "cell" is dependent on the life cycle of its neighbors but over crazy time scales.

I watched this with my daughter. Quote from her. "He's much better at explaining things than my teachers" :)

@vashon100

3 жыл бұрын

Than vs then

@MeppyMan

3 жыл бұрын

@@vashon100 found the teacher.

@heritshah

3 жыл бұрын

@@MeppyMan lmfao xD

@maskettaman1488

3 жыл бұрын

Very true, but keep in mind that will almost always be true of scripted recorded content vs live presentations

@diamondvideos1061

3 жыл бұрын

@@vashon100 corrected

I had the exact same thinking about why Hawking radiation could never be real. Thank you for explaining this important hole in my gap of understanding away, very grateful for finally "understanding" the elusive Hawking radiation through it's actual concept...for as far as that is possible for a novice in fifteen minutes. AWESOME

@ScienceAsylum

2 жыл бұрын

Glad I could help 🤓

@aucklandnewzealand2023

7 ай бұрын

You probably lost the imaginary time dimensions: strings can't vibrate backward in time uniquely at the event horizon, not in other areas. Only there. There is no movement through time at the event horizon, but only spatial movement above the speed of light. Just time for some vibrations is going back at the event horizon, they might be split, and take energy from that split.

It’s pretty amazing what you can convey in less than 15 minutes. For years I’ve had the same questions you’ve had. The concept as it is usually explained just didn’t pass the sniff test. I recall watching a video featuring none other than Leonard Suskind who has made a large part of his reputation on black hole physics where he gave that same hand-waving explanation of virtual particles forming at the event horizon. It was immediately obvious that, if one of the virtual pair was trapped inside the event horizon, the black hole would not lose mass and evaporate. On another note, I believe that black holes are the key to unifying QFT and GR. They are enormous enough to conform to GR (their existence was predicted by GR years before any experimental evidence was available), yet they are essentially quantum objects having only three properties, mass, charge and angular momentum just like a fundamental particle. Thanks again for the refreshing approach. I always look forward to your posts.

@liamnacinovich8232

2 жыл бұрын

It changed my whole view on black holes to because it wasn’t making sense to me how the mass just stopped being accessible. Then I realized mass can be converted into energy and that’s what happens over a REALLY long time

@artdonovandesign

2 жыл бұрын

Great comment! Thanks :)

I don't understand how fast you learn physics AND make videos on them AND make them SO good. I need your productivity in life.

@ScienceAsylum

3 жыл бұрын

It's a lot of work.

@pikazu2578

3 жыл бұрын

@@ScienceAsylum ❤️

As a connoisseur of physics videos on KZread, this is by far the clearest, most instructive explanation of Hawking Radiation I've seen. Thank you. I know you inspire lots of young people, but letting you know you also inspire some of us older folks, too. Thank you for the great work you do!

This makes so much more sense to me than the original description. I always asked myself how the paired particle would mitigate some of energy from the black hole.

Wow, being obsessed with black holes, this is the first time EVER I finally grasped how Hawkings radiation should be possible. Thank you so much for your videos!

Mind completely blown but this makes so much sense now.

@ishu2618

3 жыл бұрын

Yup

@samuelfeder9764

3 жыл бұрын

+

@jamestheotherone742

3 жыл бұрын

If you think it makes sense, you don't really understand it.

@tohmfilms

3 жыл бұрын

@@jamestheotherone742 very true. I think I just meant that it answered some questions that were puzzling me about hawking radiation in the first place.

@hybmnzz2658

3 жыл бұрын

@@jamestheotherone742 great party quote but not profound

Nicely explained Nick, keep it up! =)

@baguettegamer5313

3 жыл бұрын

didnt expect you to see you here lol

@YounesLayachi

3 жыл бұрын

🔥🔥🔥

@ScienceAsylum

3 жыл бұрын

@@baguettegamer5313 Papa Flammy is everywhere.

@drewdavis2392

3 жыл бұрын

@@ScienceAsylum The Papa Flammy _field_ is everywhere, but that's not the same thing. You could think of it as there being a probability at all points of PF being there. But a PF event can't be in more than one place at the same time, even when the excitation of the nearby fans is very high.

@YounesLayachi

3 жыл бұрын

@kwokshsee how do you define entropy and how do you measure the entropy of a black hole ?

Wow! I'm back to this channel after almost a year and still this man is nailing in-depth explanations.. Keep going!!

I will now forever see you with your arms over your head saying that line when ever I hear or say "CONSERVATION OF ENERGY SHALL NOT BE VIOLATED!" Thank you.

Over 300k subscribers , but still seems underrated channel.

@davorgolik7873

3 жыл бұрын

Definitely!

@95rav

3 жыл бұрын

Who needs science when there are so many channels on KZread with horoscopes, paranormal, superstition, religion, conspiracy and tin-foil hats that also completely fail to answer everything. All we can hope for is that one day people will realise science has testability, repeatability, and logic as a backround; the others have nothing but faith at best.

@Slash1066

2 жыл бұрын

Massively underrated, definitely the best science channel out there

@s-sugoi835

2 жыл бұрын

facts

The thing I like about you is that you START where all the other videos on such topics LEAVE us with. You truly are a masterful explainer. Keep being awesome!

@ScienceAsylum

3 жыл бұрын

Thanks! 🤓 I try to fill a need.

This explanation was so good I finally got the last click “I get it” fragment to understand the basic idea of this insanely complicated topic.

@ScienceAsylum

3 жыл бұрын

Glad to hear it! 👍

@damanybrown5036

2 жыл бұрын

So light can escape a black hole via Hawking Radiation?!

@mathnerd97

2 жыл бұрын

@@damanybrown5036 It depends on what you mean. The energy that used to comprise what was infalling light does. But the Hawking particles have none of the information of what was infalling particles.

@damanybrown5036

2 жыл бұрын

@@mathnerd97 so Hawking radiation is electromagnetic waves or no?

@mathnerd97

2 жыл бұрын

@@damanybrown5036 most of it is

I keep thinking I understand this, trying to explain it well enough so I can properly articulate a related question I came up with, and realizing I didn't really absorb it all. This is the third time I'm watching it and I'm realizing just how much complicated information you managed to fit into a short video while also making it engaging and easy to follow. I didn't even realize how nuanced this was the first time I watched it because you made it seem so simple and almost effortless to explain. It takes real talent to take something complicated and make it simple without making it _overly_ simple, and to make it look almost effortless is even more impressive. And then making it engaging too! The quality of your videos overall has improved a lot ever since you started doing KZread full-time (not that weren't quite good even before that) and this video in particularly really impresses me. I like it almost as much as your video on how SR fixed electromagnetism (that's still my absolute favorite as it made electromagnetism as a concept suddenly make a zillion times more sense than my textbook did) but this one is a close second. Keep up the great work Nick! Looking forward to your next video. :)

@ScienceAsylum

2 жыл бұрын

Thanks! This is definitely in my "top 5 video I'm most proud of" list. It's nice to know it's appreciated 😊

@Lucky10279

2 жыл бұрын

@@ScienceAsylum Which video are you most proud of?

@ScienceAsylum

2 жыл бұрын

@@Lucky10279 My sphere packing video with the Earths in the Sun 🤓. It might not be everyone's favorite, but that's ok. It's my favorite.

@Lucky10279

2 жыл бұрын

@@ScienceAsylum What is it about that one in particular that makes it your favorite? Was it just really fun to make?

Finally, someone with the balls to showcase the actual explanation. Another good video.

@SaditRubel

2 жыл бұрын

Black balls in space

8:48 200 years in the future: "Nick Lucid discovered the flowton in 2021, he solved one of the greatest mysteries of the universe, he would have won the Nobel prize.

@ScienceAsylum

3 жыл бұрын

😂

@JHaven-lg7lj

3 жыл бұрын

I thought Flowtons were the inevitable and irretrievable bits of pet fluff you end up with in a glass of water. Maybe it’s a quantum thing after all

@Metal_Master_YT

2 жыл бұрын

I listened to it multiple times, and it doesn't sound like he ever accidentally said "flowton". all I ever hear was "photon". I can't hear a difference.

@Lucky10279

2 жыл бұрын

@@Metal_Master_YT Same.

im glad i found this channel because as a theoretical physics enthusiast, being showed all these concepts in a simplistic and understandable medium gets me very excited about the universe.

I watch a LOT of physics and cosmology videos and this is by far the best explanation of Hawking radiation I ever seen. Thank you for finally answering some of my lingering questions!

@ScienceAsylum

Жыл бұрын

Glad I could help. A lot of research, thinking, and planning when into this video. I'm really proud of it, so it's nice to hear other people appreciating it 🙂

Thanks to Science Asylum for making my morning by posting this video.

@freezinfire

3 жыл бұрын

And it was 8 pm in India here

@ishu2618

3 жыл бұрын

So wut?

@NicklasUlvnas

3 жыл бұрын

@@freezinfire åääääåäåääåäääåä

2:15 “As long as you understand two things; black holes and quantum fields” Nick, I’m gonna have to stop you there. Really though I love the explanation and it definitely opened up some good insights for me.

@95rav

3 жыл бұрын

Yeah, it is a PITA having to limit myself to relativity and q.m. when I have a perfectly working TOE. It's a bit like doing calculus on an abacus. (I wish. Hope I live to see a working TOE that combines both space-time and quantum mechanics 🧐)

Wow, that was amazing. I watch several channels that are dedicated to teaching science, but you are explaining things in such a way, it is a pleasure to watch. I am not sure if I got it right, but nevertheless: When you explained that less energy/mass means less curvature and a black hole is exactly this - extreme curvature - and that is the reason why the black hole shrinks... My mind was blown! Wow! Thank you so much!

Another amazing video. Many moments made me stop... and realize that I was understanding something on a whole new level! What a great channel! All the best from Toronto

1:20 oh *SLAPS THE TABLE* finally someone said that this explanation is ridiculous, I mean Space Time did it too but what they said was a little too much for me

@CraftyF0X

3 жыл бұрын

Yea didnt want to be the party pooper but Matt already explained why the particle version is just an "allowed approximation". Personally I always found it ridiculous because to me that would mean that the antiparticles should have negative mass, and even though there were not many experiment to measure their mass, so far it seems they have the expected normal value for it. (and just to be clear, even if antiparticles would have negative mass one should explain why would the anti particles be the ones which are preferencibly fall into the hole and why always the "normal" ones would escape. In case of a pair production it sounds 50-50 to me, which would mean that any negative mass falling into the hole would be canceld by the positive ones) So then the question, how can you add the mass of any normal particle or antiparticle to a black hole and still make it less massive?

@YounesLayachi

3 жыл бұрын

@@CraftyF0X nicely summed up

@Nyan_Kitty

3 жыл бұрын

I totally agree xD

@tim40gabby25

3 жыл бұрын

@@Nyan_Kitty civilized discourse, right there folks:)

@eduardoGentile720

3 жыл бұрын

@@CraftyF0X Now it might seem childish but to me it looks like that antiparticles reacts equally with even spinn bosons and in an opposite way with odd spin bosons, and since the gravity particle must have a spin=2 than antiparticles and normal particles should behave the same way with gravity. Also, if conservation of energy is a thing than all antiparticles must have a positive mass

Virtual particle: I want to cancel myself out Black hole: NO

@thenasadude6878

3 жыл бұрын

Virtual particle: so, you have chosen death in a Googol years. Vengeance must be served cold, but this is very very cold...

this is the best channel to watch if you're having trouble understanding a physics concept. your explanations are always the easiest to understand.

Truly amazing, I was also wondering from where those virtual particles were coming up but you clarified it. Thanks a lot for making this video. Really an appreciable video.

"We need better nonsense" Such a Lucid thing to say..

I discovered your channel when I was trying really hard to understand a very difficult concept (Tensors). Every single YT video I watched felt like the person was reading straight out of a textbook. You're the only KZreadr who actually helps me not just understand but visualize difficult concepts. I get excited when a new video of yours pops up. Thank you for taking the time to explain things in a way that is easy and enjoyable to understand. You rock. By the way, cool shirt!

Finally! Nick has provided an accurate presentation of Hawking radiation! The very first time I read about Hawking radiation and thought about individual virtual particles being pulled over the event horizon, dozens of questions began popping up in my mind. Several of them were exactly the same questions Nick asked at the beginning of the video. Nicely done, Nick! Your’s might be the first physics channel to present this concept accurately, at least the first I’ve seen after watching science KZread channels for a few years. I no longer sound like an idiot asking (in Nerd Nick voice) “How does *absorbing* mass lead to mass *evaporating* ?!”, because I don’t say things like that anymore as it was never accurate. Lastly, I’m not sure how I missed this? I’m still subbed, have been for a while, but I clearly missed this one when it came out.

This video really gives another insight for non specialists on this topic which is not easily understood. Thanks for spreading valuable knowledge.

Finally, a popular explanation of Hawking radiation that deals with the reality of quantum fields instead of virtual particle pairs! Thank you and well done. I'm a self-taught physics amateur who has studied some QFT in curved spacetime, but I've only received confused looks every time I've tried to explain this amazing prediction to friends. Next time I try to explain this topic I will recommend this video.

Yay....New Studio. The tone and pacing difference was noticeable. I like the slow pacing and sob, it lets me absorb stuff, the earlier pacing went by too fast and I had to re-watch it multiple times. I think you are still thinking about removing the humor, but this amount is always healthy. Keep growing, our best wished is with you.

@ScienceAsylum

3 жыл бұрын

I don't ever want to remove the humor from my channel. I'm just trying to find a tone and pacing I can sustain.

@admiralhyperspace0015

3 жыл бұрын

@@ScienceAsylum Good, we like your corny jokes. The asylum needs some weirdness.

Easily the best explanation for this form of radiation I've EVER heard. Thank you very much.

@ScienceAsylum

3 жыл бұрын

Thanks! Glad I could help 🤓

Please make these videos forever. You are the best teacher I have ever seen.

"We need better nonsense." -Nick Lucid Truer words were never spoken.

@prateekgupta2408

3 жыл бұрын

Is truer a word

@thstroyur

3 жыл бұрын

That's why Dodgson wrote _The Hunting of the Snark_ - the _world_ needs better nonsense

Best explanation of Hawking radiation I’ve ever witnessed. The issues with the virtual particle picture is exactly why I never believed in Hawking radiation either... until now 😅

Thank you very much for making this much needed explainer. Ever since I read " A brief history of time" I always had my own problems with this phenomenon.

Wow! Thanks you! I had the same questions about the virtual particles fallen and adding to the mass of the black hole. This is so much more understandable.

Released after an update to Black hole image What a legend..

I am sure we would see Nick Lucid in the history of science as a major impactor..❤❤ If not for his contribution then absolutely as a teacher..

Awesome video! I might have to watch it a few times to really understand it. I can't believe I just accepted that particle anti particle thing all this time! Thanks so much!

Such a splendid explanation! I always thought the mechanism that caused the shrinkage was the half of the "particle" caught in the event horizon would eventually encounter an opposing "particle" from a similar split and they would destroy each other within the black hole. Made sense at the time, hehe.

I was just discussing this with my son today. I was explaining how it was all to do with virtual particles popping into existence at the event horizon. Thank you for proving to him that his dad doesn’t know anything useful about physics. 🤓 From now on he can watch your videos if he wants to know anything!

@ScienceAsylum

3 жыл бұрын

I still appreciate the effort you took trying to explain it to your son 👍

@En_theo

3 жыл бұрын

Admit it, underneath you were all "Screw you, Stephen Hawings, screw you ! ":)

I really enjoyed the reiteration of the concept after all the key points were presented - some of your older videos lacked such a reiteration, and it really helps tie everything together and put a bow on your glorious knowledge packages :)

@ScienceAsylum

3 жыл бұрын

Cool 😎. Thanks for the feedback.

"Black holes aren't material things -- they're spacetime itself." I shared this video with someone claiming hawking radiation is nonsense, thinking that maybe he'd only heard the surface level virtual particle explanation, and he _really_ didn't like that you said that, though he never explained exactly what his objection was. But in trying to reason with him (he was _very_ stuck on the idea of it being nonsense and was insulted that I dared to question his claim of "knowing everything about Hawking radiation"; in hindsight, I probably should've disengaged the moment he made such a claim, but oh well) it made me think a lot about that statement and now it's gonna stick with me. I'm glad, because I think it's very insightful -- the idea that gravity (which is really all a black hole is) is a property of _spacetime_ rather than a force acting on matter is just so cool!

@ScienceAsylum

2 жыл бұрын

Some people really do get stuck. It's sad 😞

I just want to thank you so deeply for the insights that you offer in these videos. It is an honor to revel in your genius for a spell. Your humor honors me as well - your sincerity and realness make it a really wonderful experience as well. Also, thanks for doing the hard work of physics and sharing the fruits of your labor so freely!!!

Thanks for the help on virtual particles. I've never been able to reconcile the common phrases science-educators use for us lay-people like, "empty space is a bubbling, boiling brew of virtual particles popping in and out of existence" with "virtual particles are just visualizations in Feynman diagrams to make the mathematics work". This video was really helpful.

Yes, the video did help me to understand this concept a little better. And you're right, the idea of such blemishes in spacetime being gradually smoothed out by the universe is beautiful and the unimaginable lengths of time this housekeeping involves is simply staggering.

That helped me not only understand Hawking Radiation better, but also quantum fields and virtual particles. I always feel like understanding of these concepts for me is always a slow, additive process for me, with small insights building up over time into actual revelations. I'm tempted to call it an accretion, but...yeah. Anyway, great video!

@ScienceAsylum

3 жыл бұрын

Glad I could help 🤓

Somehow I knew you'd have seen Fringe... Such a good series. Thank you for putting this in the terms of quantum field theory; I've always thought this process would not work in terms of particles, even if it were just an abstraction of the concept.

Nick, this is a masterpiece. Science communication has come a long long way since the 1970’s. I still blame Hawking for telling the story using words he knew would be misleading, yet technically correct. Even today, the story at the beginning of the vid is repeated constantly. I also think the work Hawking and Penrose were doing was so advanced that an ‘old school’ particle physicist at that time would not get it. His ‘story’ was as much for physicists as the general public, imho. The confirmation of Bell’s Inequalities was about concurrent with this work, iirc, so there were still a lot of physicists that still believed in particles as little balls of stuff instead of excitations in quantum fields. Best explanation video possible, for as broad an audience possible.

I'm a little uncomfortable in this new wing of the Asylum, but wanted to say thanks Nick! You have made me almost understand things I never thought I would at all.

Thank you! Very well done. It always bothered me how people used matter/antimatter pairs as an explanation without explaining why the black hole allways ate the antimatter! Found an explanation a year ago and it mostly flew over my head. This, this was good stuff!

You got me at 4:00 I like the way on how you find it to be a huge task to explain quantum field

New set-up

Saw this same topic on PBS Space-Time. Came away understanding that I didn't understand Hawking Radiation. Thank you for explaining it so well. Hey, you should be a teacher 😉

By far the best explanation of hawking radiation on KZread

This video did indeed help me understand Hawking Radiation. I was a little confused about that subject before and no one had a good explanation.

"In fact I had every intention of this video being a debunking extravaganza" *You what??*

I kind of knew this but in a more Jargon way. This makes it so much clearer and easier to understand.

El hecho de que haya puesto en duda lo dicho por Hawking me encanta. Eso es hacer ciencia. Todo debe ser puesto a prueba siempre

This was the best "Nonsense " description I have seen! 🤯 Great stuff man.

Remember kids! Quantum particles are always, _always_ waves. No matter what. And also, didn't expect the wavelength size of Hawking Radiation to be that gigantic

@dsdy1205

3 жыл бұрын

Well it depends on the size of the black hole. If your black hole is a nanometer wide, 80 Schwarzschild radii is firmly in the extreme UV spectrum

This video is up there with the one about gravity being primarily caused by gradients in time as among my favorites. Your videos make me wish I had followed my interests in science and physics years ago when in high school. If only I’d had teachers like you back then....

Been so annoyed of the inaccurate antiparticle explanation for so long, this is a welcoming relief. Very nicely explained. Thank you. Why must others continue to confuse us with explanations that breaks the laws of physics.

I don't know how I missed this in my sub box. This is so cool and I've been waiting for an explanation like this.

@ScienceAsylum

2 жыл бұрын

Glad you finally found it 👍

Huh, so you can think of Hawking Radiation as the universe's method of self-correcting the blemishes in space-time that are black holes... that actually makes it way easier to digest.

@MarcelinoDeseo

3 жыл бұрын

Perfectly balanced, as all things should be . . . eventually

@jamestheotherone742

3 жыл бұрын

Except they aren't "Blemishes". They are the anchor points in spacetime that hold the Universe together.

As always your the one person who makes sense, and doesn't just repeat the same thing as everybody else on difficult concepts and ideas! 👍👍

Nick, you are a shining example for us all. In Little League baseball, when they train umpires, they exhort the volunteer parents, who, though lacking in confidence, step up to be volunteer umpires, to call the game they see, not the game they want. In the world of physics, where this sensibility seems to be eroding (see Hossenfelder, Lost in Math), you model the right relationship that a human intellect should have in studying and delighting in the physical universe. This helps us all to gain confidence and share in that appreciation and delight. I have to think it takes an incredible amount of work and rework for you to put all these explanations together. I am profoundly thankful to you for doing this work. Michelle and I are also thankful for your account of autism. And also for featuring your wife in some of the videos. Such constructive work can only take place with the help and support of others. Thank you both. We appreciate your effort.

@ScienceAsylum

Жыл бұрын

Thanks. These videos do take a lot of work. There's a reason I can only release one video per month, and that's it. Most of the time spent is researching and writing. The post production (editing and animating) only takes 1 to 1.5 weeks.

You modeling the approach to changing one’s mind about something they previously believed is commendable. Whether you had any strong conviction to begin with (which I doubt in this case, but maybe I’m wrong) it sets a good example and is the kind of thing that someone learning about science needs to see.

Thank you, Nick. That looked really difficult to research and you did a fine job of explaining things.

@ScienceAsylum

3 жыл бұрын

Thanks! It was a lot work, but worth it.

This was the best explanation of Hawking Radiation I've heard. Easy to understand.

This was an epiphany. The string analogy has cleared up my questions and suspicions about Hawking Radiation as well. Thank you, oh man thank you. I feel better in that way that only edification can make you feel.

@ScienceAsylum

2 жыл бұрын

Glad I could help 🤓

This was the best demystifying of Hawking radiation I've come across. It actually reminded me of the Unruh effect; after some googling, it appears that Hawking radiation is a special case of the Unruh effect caused by a black hole's extreme gravitational gradient. If you don't already have a video on Unruh effect, it would be awesome if you created one with a little aside about how this is or is not a correct characterization!

Oh wow. I learned so much from this video. The event horizon particle explanation never sounded right to me because why wouldn't they get trapped in the black hole's gravity well? I never thought about "pinching" quantum fields. Hawking radiation makes so much sense now!

Thank you for teaching physics in such an understandable way, truly. I always have been fascinated by how our reality works, and extremely frustrated I couldn't understand so much of it. You are really a good teacher and I am so grateful for your work.

I'm new to this channel but with your explanation about mirrors and my favorite the hawking radiation you really got me. Thanks for your cool videos.

I helped edit that QFT textbook! I’m glad you enjoyed it.

Hey just wanted to say I love you and thank you for all the hard work. You do it like no other!!

Thank you so much Nick...No wonder why Hawking picked the layman's terms, the logical explanation is nuanced. Approaching this from the wave perspective makes a lot more sense! As always please keep it up!

Very nice work ! I was not sure to understant hawking radiation. Now, I still don't I would need to look into the equations tu fully comprehend it. But it's a lot clearer now with your explanations.

Thank You!!!! You helped me realize that the object collapsing is not the black hole. If dense enough, the spacetime around the object IS the black hole! Big difference!

@TheUnholyGangsterNoob

Жыл бұрын

thats the part still doesnt make sense. the one thing he didnt mention was the singularity at the center of the black hole. when a massive star collapses, its gravity crushes its core into an infinitely tiny and infinitely dense point with zero volume. the event horizon is the area thats close enough to the singularity that the gravity is strong enough to trap in light.

Wow, that's really cool. I've never heard this explanation despite being very interested in physics, general relativity, QM, black holes etc. for a long time.

@tim40gabby25

3 жыл бұрын

I see the subliminal advertising hit it's mark :)

Yes, this very much helped me understand Hawking Radiation a lot more, and a better way of describing black holes in general. I also laughed a couple times which is rare lately, thank you for that.

THANKS for covering the questions you first had about particle pairs... most channels just leave it as “one escapes (but one falls in) ... therefore it loses mass!”

Great video that helped me actually understand the concepts within