Go to curiositystream.thld.co/historyoftheuniverse_0122 and use code historyoftheuniverse to save 25% off today, that’s only $14.99 a year. Thanks to Curiosity Stream for sponsoring today’s video.

@moodyrick8503

2 жыл бұрын

How do GBR's compare in power output with Nova explosions?

@xusux

2 жыл бұрын

How is ur video 14 hours ago and ur comment 15 hoirs ago

@SkyValleyStuff

2 жыл бұрын

The planet of apes is real. Or war monkey land as I prefer to call it.

@smlanka4u

2 жыл бұрын

Neutrino Oscilation is the secret behind the force of gravity. I know that for sure.

@smlanka4u

2 жыл бұрын

@@moodyrick8503, 99% energy released in a supernova explosion are neutrinos. Only 1% is light, etc. And it starts a few hours before (around 2 hours before) the supernova explosion. So that shows a connection with gravity and neutrinos. And gravity can be the hidden force that is coming out from the stars making the gravity and making a small and compressed object like a small black hole or a neutron star after the explosion. And neutrinos can go through any object making gravity and anti gravity showing only a very weak gravitational force. If nearby two massive objects are emiting neutrinos they will bend the path of neutrinos causing to become the gravity stronger, and come closer faster.

Narrator: "Gravity is weak". Gravity: "Drop a hammer on your toe and get back to me on that".

@martinadoesthings

3 ай бұрын

Or visit a black hole. Perhaps gravity is the weakest force until you realize it can snuff our light

Leila's writing for these episodes (as well as the History of the Earth) is incredible. This is one of the best written and presented science programmes ever made, and I'm not just talking YT. Keep the episodes coming!

@robfitterer6080

Жыл бұрын

Yes indeed! Rarely do I stop and ask "who wrote this magnificent script?" Leila's work brings art to the science. Bravo!

@martmarriner6793

Жыл бұрын

her husbands a lucky basterd for sure

@artdonovandesign

Жыл бұрын

Agreed! Ms. Battison is a virtual POET of science communication. Not since Sagan have I heard the astronomical sciences described with such elegance and dramatic dignity.

@mrloop1530

Жыл бұрын

Who's Leila?

@sethrenville798

Жыл бұрын

The only thing I wish it was different about this was that it was a little bit less specifically catered to what all of the academic scientists refuse to shy away from, even though their theories haven't worked for years. For real, though, even according to several physicist I've talked to, gravity is literally not even a force, it's just an effect that comes from massive object warping space time, like a marble in a bucket of Jell-O. This pushing out of the massive objects onto space-time causes it to compress, which causes it to have an equal and opposite reaction force, so depending on what frame of reference you feel most identified with, either way gives you the exact same results, with no graviton that has not, and will not ever be found, it explains why it's so much weaker, because, like space-time, gravity is an emergent property of the physical manifestation of the universe, and this bending of space-time also very easily and neatly describes both gravitational lensing and time dilation, as the space-time literally works like a lens, and the warping of space-time with in gravitational fields causes extra variables to have to be accounted for when the magnificent stroke of either entropy, or some underlying force that drives it, causes time to take forward and allows the wave functions of probability of the future to collapse into the various actualize states of the present moment. Extra computations locally means this takes more time than it takes someone else's local computation where there is less complexity to deal with, as reality very clearly will skimp on manifesting certain things if it doesn't need to, as evidenced by Heisenberg's uncertainty principle, the double slit experiment, and loads of other Quantum experimental data. The gravitational fields basically act as another set of eyes, causing wavefunction probabilities that would not have otherwise had to collapse to collapse into masses, so that they can properly interact with the gravitational field. If you're asking why, the best answer I think as to why is because if things did not go down this way, then randomly objects would stop interacting with massive objects, as they would simply continue being wave functions, which would keep massive conglomerations of matter, like stars and planets, from being able to form nearly as effectively, if at all. Basically, it happens this way because our universe is stable

I am a physicist so I understand all the content. However I have to commend the production team for making such education available to everyone. It is accessible because you don't complicate things with difficult concepts or tricky Maths etc Plus you make it interesting by adding history and amazing discoveries etc Well done guys.

@commie281

Жыл бұрын

Exactly, it’s going to show people that it isn’t a scary subject to get into

@yannikakapralli

Жыл бұрын

i am no physicist and understand all the content.

@craigfowler7098

Жыл бұрын

@@yannikakapralli Exactly my point, accessible to even non physicists.

@extremeuzer3

Жыл бұрын

Has the science community officially moved off from string theory in regards to grand unification?

@craigfowler7098

Жыл бұрын

@@extremeuzer3 No the latest manifestation is M Theory. Based on same maths but progressive

I'm very relieved that Lisa Randall survived her encounter with gravity.

@tops1954

2 жыл бұрын

True...

@whirledpeas3477

2 жыл бұрын

Unfortunately she has had to have a hysterectomy, is was a terrible fall.

@jamesrussell7760

2 жыл бұрын

@@whirledpeas3477 OMG! If possible, please convey my wishes for a speedy recovery. I'm just an anonymous fan, okay?

@Gazmus

2 жыл бұрын

@@whirledpeas3477 Didn't she just break her foot?

@Google_Does_Evil_Now

Жыл бұрын

I stopped watching the video to search if she was ok. The video could have handled that better. They literally had a cliffhanger as a cliffhanger with very serious risks while teaching us. Weird to do that? At least please let us know that she was injured but relatively ok. Otherwise these are superb videos. Overall I'm enjoying these videos more than science TV shows because these videos take the science to a higher level. It's still accessible but I think I'm learning. Whereas TV shows seem to be of a lower level. Thank you for making these high quality entertaining and educational videos.

This channel deserves way more subscribers. Professionally made and absolutely captivating. Your hard work is much appreciated.

@Pauly421

Жыл бұрын

I predict this channel will blow up soon :)

How is it that this channel does not yet have a million subs?? The quality of content is ridiculously good.

@zzycatch

Жыл бұрын

They should probably start a series where they discuss true crime involving physicists, while applying makeup. Then the subs will flood in.

@suzannebrown2505

10 ай бұрын

Not too many people on this planet are interested in the physical sciences about the why and how nature and reality exist. I’m one of a small number of seniors, especially in the USA. I am, even at 76, in learning the joys of how we live in our reality with the wonders and interactions of nature and the universe. Even though I was a music major in college, I love history, biological sciences, physics, and social sciences, and astrophysics as much as I can understand.

@majorneptunejr

8 ай бұрын

@@suzannebrown2505 Too many people come to a simple dead end conclusion called religion.

@lombardo141

7 ай бұрын

We need another Cold War 😂

@lombardo141

7 ай бұрын

@@majorneptunejrthe world was a lot more religious when science was at its peak. Unfortunately science and discovery is driven by war. Look at all the advances that came from WW2. Humans need a reason to do stuff, and if you don’t have a hitler or Soviet Union to motivate you then cat videos will always do better than science videos.

really appreciate how this series digs up figures that havn't been fully credited in most science histories!

Dude, this is INCREDIBLE! I am speechless, I am truly beyond words... did you make this? Did you write the script for this video, and/or did you record the narration for this video, and/it did you edit this video? If any single one of those are true then you have a gift my dude, because this video is exceptionally enjoyable to watch. All the information presented here is so earily well structured, the words so incredibly well formulated, the entirety of this video is so well paced, and all parts effortlessly combine into a single whole, into a single video, which in my humble opinion is truly worthy of being labeled a masterpiece. Thank you for sharing this exquisite creation of yours with the world, for it has been a long, long time since I've enjoyed watching something as much as I enjoyed watching this. I was truly glued to the screen for the entirety of its duration, and I was distraught, deeply saddened and truly intrigued when it was over. Thank you, bro. Thank you ☺️☺️

@idontwantahandlethough

2 жыл бұрын

Dang, well put dummy ;) Tbh you kinda have a way with words yourself, or at least compliments! (I think that may have been the most thoughtful compliment I've ever seen in my life! Someday I hope to be one the receiving end of a compliment of this magnitude lol)

@TheBauwssss

2 жыл бұрын

@@idontwantahandlethough thank you ☺️

@knineknights

2 жыл бұрын

"I am speechless. I am truly beyond words..." Followed by a speech with over 100 words 😂 I fully agree with you though.

@yourmommashouse

2 жыл бұрын

@@knineknights 🤣

@jjiwangharu2128

2 жыл бұрын

truthfully i am agree with u

Making seemingly unapproachable physics topics appear within ones mental grasp is no easy feat, and succeeding in that is a great accomplishment when it comes to documentaries. The script and delivery of this video made it seem effortless though, very nicely done. It was a joy to watch.

@colton1341

22 күн бұрын

When someone is knowledgeable and humble they can explain things well. This channel has such a knack for bridging knowledge gaps because they’re expert AND actually want you to learn.

These videos, plus those of the entire history of the Earth, are truly fascinating to watch, and the quality continues to improve. Even things that I may already know, or think I that know, are given new and fresh perspectives. I appreciate the research and effort that goes into them.

@reivolaasik68

2 жыл бұрын

Could you leave some links to the entire history vids?

@psyclotronxx3083

2 жыл бұрын

They have a tendency to make me depressed

@bl8de3

Жыл бұрын

​@@psyclotronxx3083 How and why?

Having been in love with the quality and content of BBC documentaries for a decade, channels like yours are a godsend when I can't have access to new documentaries from reliable sources with good production. Your inclusion of source material, citation and further reading given in the video description is exceedingly appreciated and admired, as it gives a further boost of trust in your channel. It would be even better if you can include some of the theory or scientists names when you mention the new theories and discoveries. I wish you all the best with more success of your channel, and will be using your sponsor code from another video of Magellon as I already have CuriosityStream

This channel has answered so many questions about the universe that I've had since I was a child.

An absolutely stellar production, as usual. Wonderfully written and perfectly narrated. I'm so grateful for this channel - the absolute best on KZread.

@GuinessOriginal

2 жыл бұрын

Really out of this world

@quill444

2 жыл бұрын

It's not just the narration or the original writing, but the painstaking process of editing of the written script that gives this channel its power. Bravo! - j q t -

I must say, this channel makes quite complex physics look very interesting. Brilliant video

@KosmicKoheiAspiringAstronaut

2 жыл бұрын

I love what this channel produces it is very interesting to follow along.

I can't tell you guys how much I look forward to these videos. It's a real treat to get to listen to them every couple of weeks. Phenomenal work as always once again. Stay well out there everybody, and God bless you friends! :)

Love your videos bro. They're soooooo good and professional. By far one of the best video creators on an media. Good job man.

10:33 "the gravity of the situation" haha nice! great writing :)

Thank you for another mind twisting episode. Love these doco’s even though they leave me wondering if I will grasp it all.

This is INCREDIBLE storytelling, and excellent teaching as well. I had always had trouble connecting some of these concepts but you wonderfully did that, surpassing even that of a great professor in terms of teaching these ideas. All here for free on youtube

Extremely clear content, very nicely presented, excellent narrating: liked and subscribed! This is the kind of content I am looking for, thank you very much indeed.

I'd like to thank entire team for this awe inspiring content. I'm so happy I've found you and I look forward to learning and growing with you and because of you. Have a happy, healthy New Year. Be safe, be well and thank you again for all you all do 💙

@sleepingwarrior4618

2 жыл бұрын

Do you not realise that gravity is not a force in current science?

@ZigSputnik

2 жыл бұрын

@@sleepingwarrior4618 Yes, F = ma and F=mg therefore a = g and so gravity is an acceleration.

@fitzroy426

2 жыл бұрын

@@ZigSputnik I'm pretty sure Fg and g are different things.

@ZigSputnik

2 жыл бұрын

@@fitzroy426 They are in that one of them is multiplied by F. But what is the significance of Fg?

@fitzroy426

2 жыл бұрын

@@ZigSputnik i believe Fg is the gravitational force on an object, while g is the strength of gravity somewhere, on earth about 9.81 m/s

Loved this video, feels good getting in so early too. Your narration style is so easy to listen to, the scripting is spot on too.

This is the most understandable explanation of membrane theory I've come across yet. Thank you very much for this. The quality is so high I can scarcely believe it is free.

You always come up with questions that far exceed my level of education. Despite being an X-ray tech for 25 years you don't see too many supernova in the exam rooms. So your careful and calming voice carries me through a tangle of physics, astronomy and space-time on a kind of magic carpet from which I can lean over and exclaim "Oh that's how that works." or sometimes just Wow.

This has become definitely one of my favorite channels on KZread. I can’t wait to see more content! I’m all caught up on your videos now!

This is weighing on me rather heavily 🤯 Amazing content. Thank you.

@quentinbell5617

2 жыл бұрын

Similar to the size of the Milky Way or similar to mass of the Milky Way?

@OrcCorp

2 жыл бұрын

@@quentinbell5617 it's the mass that got a hold of me.

@robertthomas4234

2 жыл бұрын

I feel ya, brutha! The insignificance of a human is frightening sometimes. By the same token the consciousness we've each been gifted with is burden and blessing, so I remind myself! Peace n things.

@robertthomas4234

2 жыл бұрын

@Bobb Grimley Bro, if you're trying to educate the KZread masses, you've a long road ahead!! Peace and good health to all here🦉

@robertthomas4234

2 жыл бұрын

@Bobb Grimley I suggest that when adopting a high tone you consider the basics of sentence structure, sir. The use of a subject pronoun, in this case YOU, completes the question you pose: do YOU condone, is what you meant. Also, you put quotation marks to a word not quoted anywhere in the post you're flimsily attempting to refute. Need I add anything more to this timewasting effort at erudition, Mr. Grimley? Grim stuff indeed!!

I honestly have to thank you for mentioning Gunnar Nordström, even as a finn myself studying physics, I had never even heard of his name

An uncut version of this series would be a genuine masterpiece

One of the best channels on KZread. Keep it up, and I'll keep watching!!

What an amazing way to start the first week of a new year by watching a space video from your favourite KZreadr , 😊

Fascinating stuff! I hope that this gets lots of exposure to high school students. Watching this as the JWST unfolds and heads to its orbit at L2 makes it all the more timely, as the Webb peers into the origin of the universe

I was particularly fascinated with the discussion of gravity in the Planck universe, and the comparison with what we see now. Thanks for the vids!

4:17 "gravity is weaker by 10^25 power". Hang on the graphic says the weak force is 10^-6 and gravity is 10^-38, that's a difference of 10^-32, something doesn't add up

@petterivirtanen8652

2 жыл бұрын

There's an error in the graphics saying that the weak force is 10^-6, it should be 10^-13.

Another top notch production. Thank you for fueling my thirst for knowledge.

This channel has exceptional storytelling, coupled with graphics and explanations. Top notch content!

Man I love the aesthetic of the video as was as the articulation of your words. It’s very much my style of thinking and really engages my brain! Thank you sir, and happy days to you!

13.8 billion years of bubbling space-time and vibrating fields converge to have Leila Battison and David Kelly will this cosmic dance into words... and it is breath taking.

35:10 - However protons are affected by gravity enough that tunning had been necessary in the LHC in order to compensate for soli-lunar tides, originally not predicted. So gravity keeps behaving as expected (even more so than some scientists actually expected) at such tiny scales. While quantum fanatics may have a theoretical objection to gravity being Einsteinially seamless at quantum distances, so far they have zero evidence for that, rather the opposite. Similarly the quantum hyper-sensible LIGO does not observe any anomaly on how gravity behaves at quantum scales, all the opposite. "Quantum gravity" remains purely theoretical, while gravitational effects even at the quantum scale remain fact for as much as can be measured.

What a beautifully crafted documentary. A real pleasure to watch. Well done!!!

Very intriguing. Hope to see more on this subject from you.

Very well presented. I read Dr. Randall’s tome, or rather portions of it, and was astonished at her breadth of knowledge of physics. The implications of gravity deriving from a neighboring brane.are intriguing.

@neildown7231

2 жыл бұрын

I think the electric dipole explanation is easily the most likely where gravity is just a weaker version of the London Force. There’s really nothing else that works.

@Gainn

Жыл бұрын

Sadly she seems more focussed on her TDS than science at the moment.

@padraiggluck2980

Жыл бұрын

@@Gainn I didn’t know her politics. I was really impressed that she holds two professorships simultaneously, lecturing at two universities. It’s too bad, TDS is a mental disorder.

I watch a lot of quantum documentaries as I find this subject fascinating. I must say that this channel is by far the best, thanks guys - keep it up. But I have questions!! Who do I ask?!

Love all of your videos. So well-done and educational.

Awesome. Truly magnificent episode from a truly magnificent channel. Keep up the great work guys. Can't wait until the next one.

No words to describe this. Sends chills to my body just "wow"

Well, gravity only has to be strong enough to keep me from floating away and I'll be happy...

I love these. I never studied physics because I thought I was too unintelligent to bother in high-school but these videos have taught me quite a bit and honestly, they're so relaxing right before bed too it helps melt away all the chaos happening on this planet. All of humanity's worst aspects could maybe be overcome if everyone thought about how much of a pale blue speck we truly are in the grand scheme of things and that we shouldn't take any of this life and planet for granted and that we truly are all made of the same atoms and confined to the same universal laws, no one is more or less valid than anyone else. Anyway, appreciate the content, thank you.

amazing video thank you for sharing! that animation of neutron stars colliding is just mesmerizing

As I understand it, gravity is a fundamental variation of time that results from concentrations of mass/energy. The gradient of this variation resulting in the differing paths through spacetime. Gravity is not necessarily a "force" but instead is a phenomenon that is the result of this variation of time proximate to concentrations of mass/energy. There have been many videos published that address this and this video, as good as it is, seems to ignore this apparently well established theory about the fundamental nature of gravity. Curvature of space/time especially time creates the phenomenon we experience as gravity. Particles such as gravitons or tachyons seem convenient for Star Trek, but unnecessary for the universe in which we live.

@chrissonofpear1384

2 жыл бұрын

Hmm, could just about pave the way to a unified theory, on, if not everything, then some pretty critical things, if so. How it'd link to hyperbolic and holonomic entanglement, may be another matter, though.

@MediaBrainRecords

2 жыл бұрын

I believe this to be correct. Gravity may be an emergent property like temperature. Ultimately gravity may be an emergent result of propagation of information through concentrated quantum fields. I believe the mathematical proof for this could come from Claude Shannon’s information theory and entropy. I wish I were a better mathematician so I could further explore this idea, but my hope is smarter people are exploring this now because I believe intuitively it makes sense.

@Alex06CoSonic

2 жыл бұрын

@@MediaBrainRecords Correct me if I'm wrong, but to me, this talk of "entropy" seems to me like one looking at an abstract painting and misunderstanding it as "just a mess of colored goop". One can only make sense of it with enough frame reference and explanation from the artist, perhaps. Then, the emergent patterns in the painting become obvious, and it is no longer just "a chaotic mess of color". I see the idea of "Entropy" in the same way. We try to cut up the constantly reverbing waves into tiny bits of "3D Universe" at a specific point in time (like taking a picture of interlocking waves and calling THAT a "particle" like what we call muons, gluons, etc.) to try to understand them (while also forgetting the infinitesimally small parts lost during the cut, which reside in-between said slices), because we think the entire reverbing mess is "chaotic" or "entropic" and not understandable, but it's not. The exponential waves that keep hitting themselves and causing a "reverb" like soundwaves hitting the wall, then mixing with the same soundwave being emitted from the center once it's coming back towards the center, are the same thing as The Universe. The whole thing vibrating back and forth is causing emergent behavior we see as "The Universe", it's all organized, it's not "entropic". Entropy really seems to me like a misunderstanding. Am I correct, or am I going crazy? x)

@ses4068

2 жыл бұрын

@@MediaBrainRecords AI will solve this riddle, I don't think the theory of all is going to be solved by us mortals anyway. Ultimately, I think we will finally come to the conclusion that we are in a simulation after all. So many philosopher hinted to this already in the ancient past, with today's tech it's not that far fetched of an idea anymore. AI will pave the way to this mathematically, so it can earn it's place in the world of mortals. AI is already capable of designing complex integrated circuits in a matter of days, something like that was science fiction 20 years ago. How many of is aware of this? This autonomous chip design capability is only recently announced by Google, they must have been working on that for many years. AI is developing non-linear, logarithmic like, it's hard to predict when any breakthrough will come or be announced. The question is: would one reveal any solution or withhold it from public scrutiny to reap the fruits themselves first? Of maybe withhold it to prevent a meltdown of mankind? It's frighting in terms of ethic violations and fascinating in terms of advancement at the same time. So many disciplines in life merging with AI.

@blijebij

2 жыл бұрын

@@MediaBrainRecords That allready happend years ago with Verlinde's theory. So the link between gravity, information and entropy is already made. I still think its not totally correct, or better said, its not complete I think. Spacetime as bottom of reality is not logic. It is more logic that it is a compartment within reality. It would mean there is a door to be opened after Einstein.

This is literally one of the only channels I keep notifications on for so when I get one, there’s always a chance it’s another master piece of content from History of the Universe lol By far one of the best channels on KZread full stop. Keep going man, unbelievably entertaining stuff

Explained amazingly well..Kudoos to your presentation and selection of pictures

Thanks for the well researched beautifully presented episode.

Amazing. I can not get enough. I almost feel bad for the people that might exist in a time when we understand everything. What would we do without curiosity and discovery to drive us?

@SuperMellowFilms

2 жыл бұрын

Well, just because you know how a system works, doesn’t mean you can’t manipulate that system to get what you desire. If we 100% solved all of physics today, those scientists would still have curiosity, just in a different setting. We had the physics to land a rocket back on land far earlier than when we were actually landing rockets back on land, so the gap between the world that we know & the world that we can physically create is massive. We will go from learning about how everything works to massive multi-generational projects like a Dyson swarm or other things we have yet to realize.

@anarex0929

2 жыл бұрын

I think we would pull a Stargate universe and become a galaxy hopping civilization and see what's beyond the light barrier that we encompass. Or maybe be like a civilization and Peter F Hamilton's Reality Dysfunction saga and jump dimensions and universes to leave our brain and to go into another like seeds on a dandelion. That is if we can dump this WOKE / Leftist dogma that is destroying our society. 🙄🤷🏻 Because teaching our children broken racial theories and tearing down statues of historical landmarks in our society is totally going to make our world a better place. Did I mention burning down our cities.

@gravoc857

2 жыл бұрын

@@anarex0929 The fact that you blame just the left, indicates that you’re a victim of Dogma yourself. It’s not a left/right issue. It is an inherent human issue. To pin it on one political ideology, is a massive oversimplification to make you believe you know what you’re talking about.

@anarex0929

2 жыл бұрын

@@gravoc857 the right are feckless do nothing's when they get power they don't do anything with it. Ask Tim Pool a rational Leftist. But the left WOKE/LEFTIEST pushing racial racism, tearing down statues just because they didn't like one thing that they did in the past, or have BLM aka B.urn L.oot M.urder destroy the very small businesses that support the community or how about the occupy movement that destroyed and made it to where people couldn't get it ambulances or police into those occupied zones led to more murders and death??? Or my favorite the leftist lpgqxyzwxrz that say they are coming for your kids?? Aka critical race theory being thought in schools. Yeah I'll take the feckless right that does nothing versus the anti-community antisocial left. The left push against science the right embraces reason logic and discussion. I'm not right left or right but I support either that are in the center that are both. An look how Disney is bombing in cultures Leftists is a failed product

@Colonel_Bupkis

2 жыл бұрын

What is knowledge? Does it exist naturally or have we defined it? The universe has no obligation to make sense to us, and is by all accounts infinite. Not just infinitely big or long, but infinitely small, and seeing is how we still can’t measure a perfect second or tell how long “now” is, infinitely short. I deeply love science and thinking about it in this way has only lead to my mind being blown away at how far we’ve come. But infinity will always be undefeated

I wish Newton got to party a little more... Good man, Issac. Thanks for the maths.

OUTSTANDING!!! I save and watch your videos over and over. Thank you!!

Such..incredible...quality. My God. Absolutely fantanstic. Keep it up.

Another masterpiece! Thank you for making these videos for us to enjoy

Top notch script and narration. Surpassing anything broadcasted on TV. Only a dozen youtube channels or so are able to keep this level.

Fabulous presentation, thk you! Just subscribed

You deserve a million subs mate. May you achieve your goal. Keep these content coming but take care too :)

How in the world do I get to watch this for free? Such ridiculously well crafted work!! Thank you!

@rockets4kids

2 жыл бұрын

1. Advertisements 2. Sale of your personal data

@larsalfredhenrikstahlin8012

2 жыл бұрын

@@rockets4kids yep

@Solaxe

2 жыл бұрын

nothing is free, and if it is, you're the product

Thank you, I think you've fleshed out some of the leaked gravity theory that I'd heard of before. Wasn't sure I understood it the first time. I guess one has to be able to think muli-dimensionally to understand such abstract concepts. I'm not good at it but I try.

Superbly made video, keep up the great work!

This was well worth watching. Well researched concepts supplemented by stunning visual aids.

I find it interesting that there's now a theory going around that gravity isn't a specific force or doesn't come from a particle. Instead it could just be the drag space-time exerts on mass. As in the miniscule differences in experienced time felt by the "top" and "bottom" of an object causing what we experience as gravity.

@Gainn

Жыл бұрын

Higgs Friction?

@dennisford2000

2 ай бұрын

Would explain why the moon is going away

@Sanquinity

2 ай бұрын

@dennisford2000 The reason the moon is very slowly moving away from us is because its speed is slightly faster than what would be needed for a stable orbit...

@dennisford2000

2 ай бұрын

@@Sanquinity because It is dragged by a planet spinning one quarter of the speed it used to. If sun didn’t swell up when it dies it would escape

curious... are we still doing "The entire history of the universe, one trillionth of a second at a time." theme?

@HistoryoftheUniverse

2 жыл бұрын

Yes! Just covering everything that was going on before we hit the one second mark.

@Mohawks_and_Tomahawks

2 жыл бұрын

@@HistoryoftheUniverse wonderous! thank you for the reply.

Anyone else who got worried during the video and paused it to check on Wikipedia whether Lisa Randall survived?

this channel is awesome. The narration is top notch

This is probably the best series to explain the universe to layman. Bravo

The programming on this channel is the very highest quality. Presentation like you would get from an internationally funded big budget Public sector TV documentary series content that goes far beyond anything I’ve ever seen on TV. I’ve sat through hundreds of hours of university lectures in quantum physics and string theory and yet I still keep hearing critical details for the very first time right here.

Interesting stuff. Also, i like how you edited in the falling sounds for the poor lady. I would've gone with the good old cartoon noise but you earned a subscription. Edit: Glad she survived

If gravity were as strong as “it should be”, could photons move about and do the things we depend on from them?

@ani_n01

2 жыл бұрын

I guess no and that would make the time go slower

From the video you might've got the impression that string theory (the whole multi-dimensional-brane-thing) is the cutting edge of modern theoretical physics, revealing the hidden truth beyond the veil of reality. This is not an accurate depiction. String theories are a collection of fascinating but speculative mathematical models that existed since 70s and didn't have a major advancement since the 90s. There's no single complete theory either, it's a bunch of different implementations, each trying to reconcile with this or that inconsistency. I wouldn't go as far as to call string theory useless, but any time its mentioned you have to keep in mind that it is speculation and there are no experimental indicators that it is a model of our reality.

@dingdongsilver4783

2 жыл бұрын

Thank God you were here to explain what a theory is

@ToniT800

2 жыл бұрын

@@dingdongsilver4783 Eh? The Maxwell's field theory is also a "theory", but it is supported by an experimental ata and is widely used, in comparison to the string theory, which is not really proved or used

@dingdongsilver4783

2 жыл бұрын

@@ToniT800 what does proved mean? You mean proven? And also it's not "the string theory"... There are multiple versions that are used, and yes, they are used by theoretical physicists to make predictions to be experimentally validated by experimental physicists. Technology just hasn't caught up to test many of the theories experimentally yet.. Einstein's gravitational waves have only just recently been experimentally validated, that doesn't mean that gravitational waves were BS for 60 years that they were theorized before technology caught up to test them.. That's what the point of a theory is. I'm sorry to the OP though, I didn't know there were actually people that have no clue how this shit works.

@NotDmitry

2 жыл бұрын

​@@dingdongsilver4783 a) string theory is not a single theory, its multiple mutually exclusive theories without a complete model. b) the key is experimental proof. Quantum mechanics is also a theory, but it's one of the most experimentally proven theories in physics And I think it is important to understand what the difference is (and this video does not state it very well imho, which is why I commented). I remember watching a string theory documentary back in 00s and taking it as scientific consensus for years.

@dingdongsilver4783

2 жыл бұрын

@@NotDmitry I don't think you even read my Reply to Toni. I literally addressed everything you just said here, so I'll redirect you to that reply.

I adore your content. Thanks for all your hard work.

Fantastic channel. So happy to have discovered it.

@ranjittyagi9354

Жыл бұрын

Yeah, I discovered it recently. And, I love talking about the weather. Cheers!

4:17 what you say is inconsistent with the numbers you show 10^-38 is not 10^25 times smaller than 10^-6 (it is 10^32 times smaller)

i do want to add that ton 618 is not as large as the milky way it is larger then the sun hell even larger then the solar system but its not 100k lightyears long theres a massive differance in scale there nice video though. edit: also i might have to clear up that the 66 billion mark is not the "size" its the mass of ton 618 meaning its 66 billion solar masses

@ZenRyoku

2 жыл бұрын

shyte... i thought it was actually 400 billion solar mases... well... 66 billion is still absolutely insane!!!

@PaulDormody

2 жыл бұрын

He was saying it has the equivalent mass of our galaxy, but since it's a black hole, much smaller size.

@ZenRyoku

2 жыл бұрын

@@PaulDormody yes i get that... but its the the size that matters... ... its the motion in the fabric of spacetime... 💯 😎 THAT'S RIGHT!!! I SAID IT!!!!!!!!!! 😄😆🤣

That was pretty darned fascinating. Thanks! 👍

I love these videos thank you so much for airing them

Literally want you to narrate everything. 👌👌

This is the most high quality video I have ever seen in my entire life. Physics is so awesome, and so is this channel. Thank you very very much for this content, we don’t deserve this for free.

Masterfully done video, thank you very much!

One of the best documentation I ever saw. And concentrate on the fact, what span of mankinds knowledge we were presented here in such an extraordinary beautiful and comprehensible form, this should be part of every school class when approaching the nature of universe and gravity. Thank you very much for this magnificent work.

I've always thought gravity was a cumulative force which would explain the breakdown at the smallest scales!

@rashidisw

2 жыл бұрын

But we still have not yet managed to use other forces to affect space-time curvature,

Il never forget when I was sitting in class in collage and were going to start going over the nature of space and I suddenly thought I had made a breakthrough before class trying to find a way to make gravity make sense to a bio student. Space was just a fluid with inverse density properties. More mass (more energy) decreased density and space contracts and wrinkles (bends) as it contracts proportional to distance from center of energy. Less mass (less energy) made space expand aka dark energy. And my teacher said, "congratulations your about 100 years too late. You came up with relativity."

@jasongann8535

Жыл бұрын

Are you sure you went to college because you can't even spell it correctly.

Thank you for this wonderful video, it's very informative.

Thank you for this wonderful presentation of the unseeable, but ever-present force of our universe. Brilliant. Absolutely brilliant for people who have a desire to understand how our universe works; be it theory or fact. The graphics and narration are so helpful for those of us who are visual & auditory learners.

It is curious how gravity is a force so prevalent yet still mysterious at the same time. Which particle is responsible for this well established force - if any- remains unknown.

@tomobedlam297

2 жыл бұрын

Gravity is caused by apples. Newton proved that years ago.

@A3onYT

2 жыл бұрын

@@tomobedlam297 Physicists are still looking for an elementary particle responsible for gravitational interaction, surely Newton did not have an idea of quantum mechanics?!

@tomobedlam297

2 жыл бұрын

@@A3onYT Why should gravity be a particle? Einstein showed it was a force: acceleration! 🤔

@A3onYT

2 жыл бұрын

And an incredibly weak one at that. In physics forces require force carriers, and quantum theory has successfully explained every other force of nature, namely by identifying key particles that transmit the force at quantum level. The other three laws of physics follow quantum rules, so it makes sense that gravity must as well. Ironically, Einstein disliked the idea profoundly, but said "quantum theory is very worthy of regard". Although relativity and quantum theory are incompatible, physicists have come up with a mathematically consistent solution, that is by replacing particles with strings. String theories are essentially quantum theories of gravity, and implement the idea of the graviton, a force carrier of gravity so miniscule that it is doubtful it could ever be detected with any current physical detector. Thus it still remains theoretical, as did gravitational waves until they were discovered only a few years ago.

Very nice video! But to say string theory is gaining ground is inaccurate - it's quite rapidly losing ground these days.

Yet another fantastic educational program. Thank you so much for providing this information. It is well explained to those of us who seek to better understand physics and quantum mechanics.

This is the most imaginatively presented and astounding video on physics I have watched

Interesting how gravity is called the weakest force, however, it's the only force which is claimed to be able to warp space and time? Not even the strong, weak or electromagnetic forces can do that?

@Nimish204

2 жыл бұрын

Because gravity is fundamentally different from the other forces. It doesn't make sense to compare them.

@merlepatterson

2 жыл бұрын

@@Nimish204 Nobody can say why and how Gravity (being the weakest force) has the energy to warp something as tenuous and intangible (energetically) as space/time? It is easy for magnets (which are polarized matter) to be attracted to magnets via field effects, but not masses to other masses via the same principle? Masses must warp space and time to effectively pull other masses closer? There might be something fundamental missing?

@Nimish204

2 жыл бұрын

@@merlepatterson gravity isn't even a real force. It's just mass warping space-time. Real forces are carried by particles, we know of no gravitons.

@merlepatterson

2 жыл бұрын

@@Nimish204 OK, so if gravity isn't a force, but can warp space & time as is claimed, then what is the mechanism since space and time have no properties of matter themselves? Yet, if matter comes near to other matter in space/time, then they are attracted merely because of the effects warped space? It's only my opinion, but I think something is fundamentally missing in theoretical physics regarding gravity. And people have been on the train so long, they can't go back home. There are other plausible explanations for the Eddington observations and the apparent disparity in clocks outside of the GR approach. Of course, I'm a heretic for saying so, but it doesn't bother me in the slightest. Why do we never hear of universal deep space light refraction events based upon gases and temperature variations? Why is it always "gravitational lensing" as the causal factor?

Yes but is gravity a force? Since 1915, when Albert Einstein published his paper on general relativity, we all know the answer: Gravity is not. Even as the narrator explains this nature of gravity he continues calling it a force. Unfortunately, this muddles up the whole story of this video.

@ritemolawbks8012

2 жыл бұрын

Gravity is not a "force" in General Relativity ("GR") because its existence is relative to the observer. Outside of GR, you can call gravity anything your want. It doesn't matter whether it's gradational acceleration, gravitational energy, gravitational force, gravitational interaction, gravitational time dilation (curved time), or curvature of spacetime. It's just a terminology.

I like and I am totally conquered by your speach and content, clear and concise, about most difficult subjects. Thank you for your work and dedication to disseminate popularly these difficulties.

Excellent video. Very interesting, informative and worthwhile video.

I am so happy I found your channel ❤️

this is really the most remarkable science channel on KZread. incredibly well researched, written and produced. the only one that comes close is science clic, which is a bit more challenging in the concepts but not quite as gripping in the telling.

Always great content!

Absolutely top notch videos here! No BBC or Discovery Channel stuff comes close to this. Respect!