Thank you professor! I watch and have watched EVERYTHING you ever put on you tube! You have taught me so much that you have changed my life! Thank you is not enough for the amount of time you give us! You sir are a gift to the universe!
Dr. Greene, I’m sorry I cannot share this program or you with my friends and family. If I did, it would demystify their idea of me being this knowledgeable phenom of physics. They would then be able to easily learn physics themselves by listening to you and I would have no purpose. Lol, I kid, of course. I share this show with everyone I talk to because you make learning physics so accessible that it is criminal. Thank you so much for all that you and your wife does with WSF.
Omg you have no idea how long it took to find you. Finally someone who understands the equation. Finally someone who understands exactly what I'm talkin about.
Watching these videos and the comments feels so good, they are still people that trill to understand the fundamental concepts of the physics world. Keep doing this stunning work, Dr. Greene.
This seems to me to be obviously wrong. The idea there is not meaning in the universe is contradicted by the fact that we have meaning, infinite kinds of meaning in our lives. And we are the stuff of the universe.
You are teaching the world, thank you. I am from Netherlands Europe. My question: Spacetime is ours, the quantum world may not even ‘know’ about the existence of our spacetime. If we move two entangled particles away from each other in our spacetime, the distance between them of course means nothing in the quantum world. Why wonder about spooky action at a distance, what distance, whose distance?
It's impressive they way you make complex concepts easier to understand. I don't have a background in math or physics but I was able to enjoy the entire video.
This is wonderful really love to hear your ideas and thoughts on the UFO/UAP. My wife and I were visiting Arizona and saw what looked to be a warehouse floating in the sky.
Have you heard of the floating city that was seen and filmed in China?? Google it, it should come up. They videotaped what literally looks like a full floating city with tall buildings. I saw something in the sky near Chicago 3 wks ago that looked to be about 100 ft in length, thin, was not moving @ all, then the damn thing just disappeared! Right as I was looking @ it! Truth is stranger than fiction for sure...
@@TheTrocek He is such a decent, brilliant human being I agree with you. I'm a Canadian university professor of psychology and Dr. Greene would probably want to question me about my field. However, I wouldn't let him. I'd rather be the one asking questions and listening to him.
Thank you for this series; it transformed my afternoons during lockdown. I even listen in at night before bed. Reason and decency are so good to experience as gain.
Thank you for the fantastic work you do. After reading "The Elegant Universe" and during it I was able to have fantastic visualisations. Hopefully they are reflective of the math. It has inspired me to study physics. And it is fascinating
I read a hidden reality kinda on a whim i made it half way before i realized i needed to reread it to better understand it but i love this kinda stuff.
Sorry, I must have missed something, I thought you were going to explain the right hand side of the equation of General Relativity, I thought we'd just done the left hand side (geometry) last Wednesday. Thank you so much for your patience, you are so sweet!
PS I am really interested in the maths, because when you explain you make it seem so simple. You are a very good teacher and so sad that you won't be able to do the daily equation any more. This has got me through lockdown. Thank you.
Commenting on just a part of your discussion....the yoga tradition says ( and its plausible to me ) that the finest material is just pure consiousness conceivably yet very likely beyond our present ability to imagine (only to experience ) and which modern physics seem to be converging on with experiments that are affect by observation. Let me tell you i look at many of your programs and very much laud ur exquistite and balanced way of sharing the highly technical in your general naturalness of presentation.
Obtaining an intuitive understanding of our universe as described by general relativity has been a major personal goal of mine for a long time. Thanks to your explainations, I finally feel I have (somewhat) achieved that. Thank you so much for sharing your insights with us.
I just found you show. I am a big fan of your lectures and low and behold I found this page. Excellent!! I have been learning all the nomenclature of the atom( quarks, leptons, ect..ect) and the interaction the atom has with gravity, magnitism, boses, all essenchal terms I need to understand partical phisics. The math assocated with all this I will try to do once I get more familar with the termonaligy. I am going to become a member of the world science oganization. It would be fantastic, thanks.
A question : If we have already passed the event horizon in a black hole why we don't fill the same gravitational force that avoid the light to scape out of the event horizon? Also, in the presence of the blackhole even far from its center but inside the event horizon, why we don't measure a difference in the orbital behavior of the moon regarding the rotation around the earth?
money, knowledge, cars, houses..... nothing else REALLY matters except your familia. when you are a broken down old man who is gonna be there for you? family is everything
HUMAN = SLAVE In Legalese, A Living Creature In a Federal State of Corporate /Commercial Being, is the same as a Contractual Artificial Person and a Legal Monster, Federally Be-The Lie-Live it or not, but you shouldn't believe anything. It's the best way to not know things by Holy Pedophile (Religious /Educational) Design. -marc27
Here it is for The Contractual Policy Violation of MURDER which is for you, not your Contractual Cap G God /Gov't by Holy Pedophile Design, Contractually Worldwide, already, all around and not at all on planet earth since Contractual Legal Fictions do not Actually, really or truly exist because they can't. -marc27
The description of the relationship between motion through space vs time was especially interesting! I think I understand now how photons can move through space, and 'do things', despite time not passing for them. Still seems a bit weird though to talk about a situation in which a relationship between time and space changes, when the notion of change seems to then refer to some further notion of time - or what is the change with respect to in this case?
Hello Dr Greene!!Can you answer in your next live session whether time can be an illusion?Also please tell me whether time can be a circular arrow rather than the linear arrow?I will greatly appreciate it.Thank you!!
Pranav I admire Prof Greene but you should also investigate what the (your?) yoga tradaition says about time ( Kala). Source quality is important and you may have to look a bit more to get something satisfying. There are many sources. I would point your to Autobiography of a Yogi , which also has many footnotes and references to research and other topical books. Hope this is helpful.
Thank you for the series and the attempt at having a dialogue with any of us... My comment: The idea of time slowing down by motion thru space may well be that staying "active" keeps one YOUNG! ... You seem to be providing yet another version of "Biology is destiny" from your perspective of Physics.
Brian, I' m depending on you. The earth is always shown sitting in a net making a depression in that net and the moon circling within the depression. My question is shouldn't the earth actually have a "net" that encircles the earth? The earth should be exerting a disturbance in space into every direction right?
Hello Brian :) nice show.. i got a Q here from Denmark (EU), how can the big bang start up if time is not there already? you can't go from A to B with out time, if A is before the big bang and B is just after the big bang have start up ??
Hey sara from Morocco...i am one of your biggest fans since i was a child . I discovered my love for physics astronomy through your documentaries ...i love quantum mechanics because they are so intriguing and so mysterious that einstein himself called it as nightmare ... what advise can you give me as a teenager ?
Get a good understanding of Einstein & Newton.... Learn everything you can about them & then gradually immerse yourself into any field of physics that you gravitate towards...
Emily Nguyen, in Princeton NJ. What is the relationship between mass and space? When a particle itself grows (can a particle grow) does space grow with it, moving everything everywhere apart?
Another question. The movement from macro in to micro. Or back. Not one of the 3 spatial dimenssions. So where do ee specify our level of magnification?
I like how you help the young ones develop their curiosity. Funny, how he near the end of the recording unknowingly opened a wormhole into the past and accidentally closed it again without knowing what he was doing.
Greetings from Nova Scotia.... tremendously interesting and informative as always Dr. Greene. I was fortunate enough to attend your WSF discussion “Beyond the Higgs” last June with my stepdaughter who aspires to be an astro-physicist, and after seeing you in person, now hopes to study at Columbia University. I can only hope that one day soon you’ll be her professor. Very much enjoying your sessions, and I’m wondering if you might be able to address in an upcoming Daily Equation episode, the proof put forth by Andrew Wiles on Fermat’s Last Theorem, specifically the nature of elliptic curves and modular forms. I still have to original Nova Episode “The Proof”, and I understood the logic of how they pertain to the proof (specifically, if Fermat was wrong, you can produce an elliptic curve that is not modular, but Taniyama-Shimura says that every elliptic curve is modular, therefore Fermat must be right) but I don’t really understand the nature of elliptic curves and modular forms on their own. Thank you again for all of your work here on UA-cam, both personally and with the WSF. ~ Aaron Sampson
This is Doug from Philadelpia Pennsylvania. I agree with Einstein that each person, tree, rock, or decaying mouse corpse has their own “time”. The two twin experiment were one stays on earth the other travels at light speed and returns is a classic example. My question is why do physical Process slow down at light speed and at light speed would all physical process stop?
The purpose of life? To live. To experience as much as you can of this collective hallucination, with just a slightly different perspective than anyone else. To experience things and report back to the rest of Us such that we might also decide whether we also want to do the same.
Mr. Brian Greene if one alien man comes and asked you show me the best country you have on the planet earth so wits one you can point out today days how confident are you to show him.
Professor Greene I really enjoy Physics, and Math all your Do for Education, My problem is that I can not get my head around, "INFINITY " . ? P.S. I hope you are all safe!
At about an hour and twenty minutes in you talk you mention 'pure' mathematics and why you didn't pursue studies there. One instance I've always remembered was a curved form 'discovered' by this mathematician with no particular reason or purpose. Turns-out that form is the perfect shape for entrance and exit ramps on highways. That may be a world-famous time it happened, but, anyway, there it is.
Coming from Welland, Ontario. Question - why didn't researchers find Higgs at Fermilab. Higgs "found" at 125 GeV range. Tevatron peak energy was well above this. Tevatron collided different particles than LHC, but isn't energy energy? Were the detector limitations?
I like your comments and explanation 1:27:00 concerning Entropy as in the Second Law of Thermodynamics because finally there's something resembling sense appearing in popular media and in a social network concerning that subject. It's inspired. I've been stating for years to deaf ears, that the Second Law's Entropy only applies to Closed systems and not Open Systems. Nevertheless, it's only in Closed systems one can observe changes in matter and energy and without it, the universe would never change or would endlessly repeat itself. This means that Entropy means a lot more than just "Order to Disorder". What appears broken or shattered in the Worldview, or Closed system is not in the Cosmic View or Open systems. Nor has it lost its connection to many more things we could hardly imagine yet. The alarming sound of "the broken glass shattering" can be just as well be heard as bells of fanfare announcing it's freedom from a system that has no more control over it and can now either move-on to other things or move-up to greater things. Entropy is the only reference and insurance that the clock moves forward for the entire universe's benefit. Any sadness or inconvenience over some broken dish or machine is only, in the end, philosophical.
Dr. Greene, first, thank you so much for your series. I forgot nearly all my higher math by now, so I’m just hanging on to this series, but enjoying it! Since I only remember a quarter of algebra, here is a basic relativity question from that perspective. I am floating freely in space and see two trains hurtling towards each other, one going 335 million mi/hr, the other going 336 million mi/hr. Since nothing else is around to give perspective, am I in my rights to say that one is still and the other is actually going 671 million mi/hr, or faster than the speed of light? Also, why is light the only thing allowed to go that fast, and why is that idea accepted?
A Few Contrarian Thoughts (and a few critical): But first, good advice at 23:28 in that in the world of physics, Grueling comes before Glamor (which goes for being a celebrity, too), and good key observation at 24:28 with 'Contribute'. I would have said (to get philosophical), to keep asking questions and to keep being skeptical, but (on a higher and broader plane), to do so within the overarching guidance that the Philosophy of Broader Survival offers, i.e. to operate within the Problem Solver's Mindset, the Strategies of Broader Survival, the Great Struggle, the Pinwheel of Life, and the Ultimate Value and Goal of Life. So I would say to read, understand, and live by that philosophy, since future life (and artificial intelligence) (and physicists) will be using its broad, overarching, existence-guiding guidance. Also, at 24:57 on broad vs. deep and on learning physics by doing problems and problems (beginning with textbooks), a 'great' physicist (which every kid dreams of becoming) will have done ALL of the problems in the textbook, INCLUDING the difficult ones that a typical school course never gets to (having to go 'broad' rather than 'deep'). 'Great' in physics is 'deep'. This does not mean ignoring 'broad', since broad is where new insights come from (as you put things together from various branches for the first time in human history). So there is your 'great'. Note: if you want to avoid the grueling, then love your work (love overcomes all, as they say). 1. On Curved Spacetime 6:15 First, we have to get away from the 'groove/indentation/valley' mental visualization of curved space. That inadequate visualization comes from the bed sheet depiction, which works mechanically, but spatially it is wrong. It would be more beneficial to visualize curved space it as it is, which involves bodies (such as spheres) acting in all directions at once. Second, time does not bend, since time is an idea, not a physical property. It is a tool that we invented to track change. Sure, the clock's internal operations slow due to speed and gravity, but that is still just 'change' in the physical world. Silly physicists mistake time for a physical property, which misleads everyone else, beginning with science fiction writers writing about 'backwards time travel', which is barking up the wrong tree. You want to go back in change (meaning recreate it, since reversing it would be too destructive). Interesting explanation about objects "falling" at the same speed, that they are actually stationary and the earth moves toward them, but even that model has logical flaws (why isn't the earth stationary too, where nothing would 'fall'?). 2. On Our Universe Being in a Black Hole 11:30 First, If we were in a black hole, logic would have it that the universe would not be expanding, but it would be in the process of being crushed, or at least kept crushed, with no space between galaxies. You could argue that the external universe was expanding, which would include our crushed universe, but then you would have to factor in the speed of our being further crushed as the black hole that we were in draws in more stars and matter (the black hole's internal gravity thereby increasing). Second, let's suppose we were inside of a black hole. Nice model, but the question is, 'Now What?' and the answer is we try to escape in order to join the greater universe out there. Third: try to imagine a functioning universe inside of a black hole (or plastered onto its event horizon), and all physics breaks down. The final litmus test is engineering. You cannot successfully engineer to an erroneous model. 3. On Acceleration and Time Slowing 17:58 Acceleration is the ONLY criteria working on change (in that example, which excludes the effects of the environment such as strong local gravity wells), since acceleration is the same as gravity, and since it happens during changes in speed, and not just the change in direction, as you argued. (changes in speed and direction both involve action and reaction). 4. On String Theory 12:06 First, on "a one-dimensional vibrating filament". You do not realize how silly that notion is, and this is why String Theory is a mathematical dead end as a description of the physical world. Here, it is claimed that a physical object has only one dimension, which is not possible. You need three dimensions, or the object is just an abstract thought which itself doesn't even work. As for more than three dimensions, the only hope there is that the extra dimensions actually describe different parameters of a three-dimensional object. You only have three dimensions for an object, no more, no less. More or less is either fantasy or erroneously applied. Get over it. Second, you did not answer the question (on how a string produces a new particle), you went from how a string 'distinguishes' (which you should never have said) between particles to described how a string 'transforms' into a different particle (both by vibrating at a different frequency). So the answer then is that strings (even if they existed) do not produce new particles.
I noticed that in the classroom. The clock is in front of front of the room it would slow and the teacher would be walking away From me it would Freak me Out it seemed she slowed down ! Slow motion it would happen a lot I don’t know why I picked that up thangs like cars ,people walking away ,, Thank you I really enjoyed this , and I love Fractals just think of the designs you could make wow !,
Coming out of North Carolina, I was wanting to know what you thought in the aspects of rewind in time for relativity, and if it were possible for an entity to do so
I've seen a lot of explanations for the falling apple, that it supposedly is in rest and the rest of matter is accelerating towards the apple... but how do you explain it if 2 apples on the opposite side of the world are falling towards earth? The world can't move in opposite sides at the same time.
I have traveled thousands of miles in the Northwest triangle from the Midwest to the far west to the far North with several diagonal hypotonous, and up to a thousand miles a week on a corealis around the S.F. bay area, and I have traveled thousands of floors up on the elevator and down on the stairs. I am the poster child for variable spacetime dilation.
I am always intrigued and mind melted by your presentations, but strangely enough, I am just as intrigued by a phenomenon that I am not even sure you are aware of... Namely the interference pattern created by the (threads) on the back of your chair! :)
Thank you professor! I watch and have watched EVERYTHING you ever put on you tube! You have taught me so much that you have changed my life! Thank you is not enough for the amount of time you give us! You sir are a gift to the universe!
Thank you for all your work. It changed many lives.
You are Genius Sir.
I am From India.
I am too from india
But can u tell me is it a fixed time from india when greene sir come live for QnA
@@hydrogen7760 I think it's at 12.30 am. Look at the time stamp 2:05:20, someone from India says "it's 2.36 in India, you all should sleep now".
@@maulikparekh776 thank u
@@maulikparekh776 LoL it was me who said that. 😂
Dr. Greene, I’m sorry I cannot share this program or you with my friends and family. If I did, it would demystify their idea of me being this knowledgeable phenom of physics. They would then be able to easily learn physics themselves by listening to you and I would have no purpose. Lol, I kid, of course. I share this show with everyone I talk to because you make learning physics so accessible that it is criminal. Thank you so much for all that you and your wife does with WSF.
Dr. Greene thank you for all you do!
mviyyuuuuuuudtd
If
@@jilliankovalsky3775 hi
@@jilliankovalsky3775 hi
@@jilliankovalsky3775 h
Omg you have no idea how long it took to find you. Finally someone who understands the equation. Finally someone who understands exactly what I'm talkin about.
I thank brain green for the information he is putting out there for us to answer our questions
The most important thing I heard in this video, was a man's love for his family, and his canine companion. I love that Brian Greene realizes this!
Watching these videos and the comments feels so good, they are still people that trill to understand the fundamental concepts of the physics world. Keep doing this stunning work, Dr. Greene.
Thank you for all you do and for your excellent science communication!
1:33:55
A surprisingly insightful reply to a slightly clichéd question.
You continue to surprise me Brian!
L
This seems to me to be obviously wrong. The idea there is not meaning in the universe is contradicted by the fact that we have meaning, infinite kinds of meaning in our lives. And we are the stuff of the universe.
Always a great listen - one of the smartest people put there imo 😊
This guy is awsome . Good answers.
You are teaching the world, thank you. I am from Netherlands Europe. My question: Spacetime is ours, the quantum world may not even ‘know’ about the existence of our spacetime. If we move two entangled particles away from each other in our spacetime, the distance between them of course means nothing in the quantum world. Why wonder about spooky action at a distance, what distance, whose distance?
It's impressive they way you make complex concepts easier to understand. I don't have a background in math or physics but I was able to enjoy the entire video.
Apart from his explanation of why two objects with different masses fall at the same rate. :p
Off the cuff high level accurate physics... I'll make sure to visit previous episodes
GET TO SAFETY , JOIN YOUR FAMILY, BE SAFE GOD'S SPEED!!!
This is wonderful really love to hear your ideas and thoughts on the UFO/UAP. My wife and I were visiting Arizona and saw what looked to be a warehouse floating in the sky.
Have you heard of the floating city that was seen and filmed in China?? Google it, it should come up. They videotaped what literally looks like a full floating city with tall buildings. I saw something in the sky near Chicago 3 wks ago that looked to be about 100 ft in length, thin, was not moving @ all, then the damn thing just disappeared! Right as I was looking @ it! Truth is stranger than fiction for sure...
I would love to sit down with this man over a beer or scotch. I could listen to his explanations for hours!
he would probably be willing to listen as well ;) I'm quite short on that part :D
@@TheTrocek He is such a decent, brilliant human being I agree with you. I'm a Canadian university professor of psychology and Dr. Greene would probably want to question me about my field. However, I wouldn't let him. I'd rather be the one asking questions and listening to him.
Thank you for this series; it transformed my afternoons during lockdown. I even listen in at night before bed. Reason and decency are so good to experience as gain.
@@TheTrocek Yeah hes a Gem isnt he?
So interesting. Thank you!
BLESSINGS!!! @LOVEYOU
Thank you for the fantastic work you do. After reading "The Elegant Universe" and during it I was able to have fantastic visualisations. Hopefully they are reflective of the math. It has inspired me to study physics. And it is fascinating
Rererreeeeuiooododxoooooooodxonmwhhemwmemo do.
I typed that reply in my sleep and woke up to that mess, I felt it needed to be posted after that
@@brandonforte708 I understand completely. If only I could type the images in my dreams...
Mr. Greene, you grow a lot like Albert Einstein 👍.
I read a hidden reality kinda on a whim i made it half way before i realized i needed to reread it to better understand it but i love this kinda stuff.
Big respect for you sir .Love from Pakistan
Which city
@@syedahsan1537 karachi
Bro you should focus on removing corruption from your country and make it good....
:)
Sorry, I must have missed something, I thought you were going to explain the right hand side of the equation of General Relativity, I thought we'd just done the left hand side (geometry) last Wednesday. Thank you so much for your patience, you are so sweet!
PS I am really interested in the maths, because when you explain you make it seem so simple. You are a very good teacher and so sad that you won't be able to do the daily equation any more. This has got me through lockdown. Thank you.
Love these types of conversations. Thank you for this.
The conversation is the first manipulation of time and space.....one of a kind.
thank you for this awesome series.It's really helpful.
Commenting on just a part of your discussion....the yoga tradition says ( and its plausible to me ) that the finest material is just pure consiousness conceivably yet very likely beyond our present ability to imagine (only to experience ) and which modern physics seem to be converging on with experiments that are affect by observation. Let me tell you i look at many of your programs and very much laud ur exquistite and balanced way of sharing the highly technical in your general naturalness of presentation.
Obtaining an intuitive understanding of our universe as described by general relativity has been a major personal goal of mine for a long time. Thanks to your explainations, I finally feel I have (somewhat) achieved that. Thank you so much for sharing your insights with us.
Can’t stop watching. Charleston, SC
I just found you show. I am a big fan of your lectures and low and behold I found this page. Excellent!! I have been learning all the nomenclature of the atom( quarks, leptons, ect..ect) and the interaction the atom has with gravity, magnitism, boses, all essenchal terms I need to understand partical phisics. The math assocated with all this I will try to do once I get more familar with the termonaligy. I am going to become a member of the world science oganization. It would be fantastic, thanks.
Nice answer for 'what's the meaning of it all' Brian. :)
A question : If we have already passed the event horizon in a black hole why we don't fill the same gravitational force that avoid the light to scape out of the event horizon? Also, in the presence of the blackhole even far from its center but inside the event horizon, why we don't measure a difference in the orbital behavior of the moon regarding the rotation around the earth?
such a humble guy, lov him
I love this guy!!!!!!!!
Yes, I hear you perfectly.
Sir please try to make your next DAILY EQUATION video on the evolution of THE UNIVERSE & BIGBANG
Brilliant. Being able to convey the essence of GR and the expansion of space to all. I really look forward to the daily sessions.
Huhhh
Huhhhh
Hu
Huhhhh
Uh
money, knowledge, cars, houses..... nothing else REALLY matters except your familia. when you are a broken down old man who is gonna be there for you? family is everything
Life is endless TRANSFORMATION
Thank you for all your hard work
The entire universe is a planet around another BIG star ,which helps explain it as a part of multiverse
He is smart, funny and good looking. What a gift to humanity.
Especially good lookin’ 😍
HUMAN = SLAVE In Legalese, A Living Creature In a Federal State of Corporate /Commercial Being, is the same as a Contractual Artificial Person and a Legal Monster, Federally Be-The Lie-Live it or not, but you shouldn't believe anything. It's the best way to not know things by Holy Pedophile (Religious /Educational) Design. -marc27
@@marcdouglasvogt7167 you've lost it buddy 🤭
I don't invent Legal Terms, and /or make up Legal Definitions. -marc27
Here it is for The Contractual Policy Violation of MURDER which is for you, not your Contractual Cap G God /Gov't by Holy Pedophile Design, Contractually Worldwide, already, all around and not at all on planet earth since Contractual Legal Fictions do not Actually, really or truly exist because they can't. -marc27
Dimensions are perspectible
The description of the relationship between motion through space vs time was especially interesting! I think I understand now how photons can move through space, and 'do things', despite time not passing for them. Still seems a bit weird though to talk about a situation in which a relationship between time and space changes, when the notion of change seems to then refer to some further notion of time - or what is the change with respect to in this case?
Einstein said "“Energy cannot be created or destroyed, it can only be changed from one form to another.” So does that mean that energy if finite?
Can you discuss Ahranov-Bohm effect and what that means about vector potential?
Who noticed the windy trees in the backgrou nd? Thank you GREENE
How physicist approaching communication with the community daily!
Greetings from Bandung Indonesia
Hello Dr Greene!!Can you answer in your next live session whether time can be an illusion?Also please tell me whether time can be a circular arrow rather than the linear arrow?I will greatly appreciate it.Thank you!!
Pranav I admire Prof Greene but you should also investigate what the (your?) yoga tradaition says about time ( Kala). Source quality is important and you may have to look a bit more to get something satisfying. There are many sources. I would point your to Autobiography of a Yogi , which also has many footnotes and references to research and other topical books. Hope this is helpful.
Thank you for the series and the attempt at having a dialogue with any of us... My comment: The idea of time slowing down by motion thru space may well be that staying "active" keeps one YOUNG! ... You seem to be providing yet another version of "Biology is destiny" from your perspective of Physics.
If only we could jog at 300,000km/s
My intelectual hero for the moment
Brian, I' m depending on you. The earth is always shown sitting in a net making a depression in that net and the moon circling within the depression. My question is shouldn't the earth actually have a "net" that encircles the earth? The earth should be exerting a disturbance in space into every direction right?
"Simultaneously" is quite the adjective
I hear you
Well-being, restored
Hello Brian :) nice show.. i got a Q here from Denmark (EU), how can the big bang start up if time is not there already? you can't go from A to B with out time, if A is before the big bang and B is just after the big bang have start up ??
Brilliant Brian! So generous to give all this information and good attitude free for us. Equation for every day of the year might it emerge?
Math in my somewhat humble opinion is a human quantification of truth.
I hear you don't stop
Very good
Sir, Please explain klien Gordan equation, Dirac equation,and other equations related to QFT.
Love
I love the math but make whatever changes necessary to keep viewers interested and this series going.
Hey sara from Morocco...i am one of your biggest fans since i was a child . I discovered my love for physics astronomy through your documentaries ...i love quantum mechanics because they are so intriguing and so mysterious that einstein himself called it as nightmare ... what advise can you give me as a teenager ?
Sara, that's cool.
Get a good understanding of Einstein & Newton.... Learn everything you can about them & then gradually immerse yourself into any field of physics that you gravitate towards...
Hi Brian! Love the talks and other videos! Cheers and Happy Holidays from Anmore, British Columbia
Love this so much 🤙
Emily Nguyen, in Princeton NJ. What is the relationship between mass and space? When a particle itself grows (can a particle grow) does space grow with it, moving everything everywhere apart?
Another question. The movement from macro in to micro. Or back. Not one of the 3 spatial dimenssions. So where do ee specify our level of magnification?
Our relative size.
I like how you help the young ones develop their curiosity.
Funny, how he near the end of the recording unknowingly opened a wormhole into the past and accidentally closed it again without knowing what he was doing.
Greetings from Nova Scotia.... tremendously interesting and informative as always Dr. Greene. I was fortunate enough to attend your WSF discussion “Beyond the Higgs” last June with my stepdaughter who aspires to be an astro-physicist, and after seeing you in person, now hopes to study at Columbia University. I can only hope that one day soon you’ll be her professor. Very much enjoying your sessions, and I’m wondering if you might be able to address in an upcoming Daily Equation episode, the proof put forth by Andrew Wiles on Fermat’s Last Theorem, specifically the nature of elliptic curves and modular forms. I still have to original Nova Episode “The Proof”, and I understood the logic of how they pertain to the proof (specifically, if Fermat was wrong, you can produce an elliptic curve that is not modular, but Taniyama-Shimura says that every elliptic curve is modular, therefore Fermat must be right) but I don’t really understand the nature of elliptic curves and modular forms on their own. Thank you again for all of your work here on UA-cam, both personally and with the WSF. ~ Aaron Sampson
Yes
gaddamn...!!!! he's a treasure of the entire universe.
This is Doug from Philadelpia Pennsylvania. I agree with Einstein that each person, tree, rock, or decaying mouse corpse has their own “time”.
The two twin experiment were one stays on earth the other travels at light speed and returns is a classic example.
My question is why do physical Process slow down at light speed and at light speed would all physical process stop?
Greetings from Wales (UK)
We could be looking at two dimensions through a lens and quantifying what could be.
The purpose of life? To live. To experience as much as you can of this collective hallucination, with just a slightly different perspective than anyone else. To experience things and report back to the rest of Us such that we might also decide whether we also want to do the same.
Mr. Brian Greene if one alien man comes and asked you show me the best country you have on the planet earth so wits one you can point out today days how confident are you to show him.
I like the idea of a finite universe with an infinite shape = or vise versa ∞
Professor Greene I really enjoy Physics, and Math all your Do for Education, My problem is that I can not get my head around, "INFINITY " . ? P.S. I hope you are all safe!
My chosen polarity effect the universe in the presence of heat.
How would you talk to your ancient/ simple self. How can a simple society be moved to a Global society.
Greetings from Brasil
Tudo bem!!
@@jacobm5167 Tudo. ;-)
Eu gosto muito desse canal. É uma higiene mental pra mim.
At about an hour and twenty minutes in you talk you mention 'pure' mathematics and why you didn't pursue studies there. One instance I've always remembered was a curved form 'discovered' by this mathematician with no particular reason or purpose. Turns-out that form is the perfect shape for entrance and exit ramps on highways. That may be a world-famous time it happened, but, anyway, there it is.
Coming from Welland, Ontario. Question - why didn't researchers find Higgs at Fermilab. Higgs "found" at 125 GeV range. Tevatron peak energy was well above this. Tevatron collided different particles than LHC, but isn't energy energy? Were the detector limitations?
Aging isn't caused by the passage of time.Aging is caused by sun exposure.Sun exposure ages the skin where the sun's rays hit.
I like your comments and explanation 1:27:00 concerning Entropy as in the Second Law of Thermodynamics because finally there's something resembling sense appearing in popular media and in a social network concerning that subject. It's inspired.
I've been stating for years to deaf ears, that the Second Law's Entropy only applies to Closed systems and not Open Systems. Nevertheless, it's only in Closed systems one can observe changes in matter and energy and without it, the universe would never change or would endlessly repeat itself. This means that Entropy means a lot more than just "Order to Disorder". What appears broken or shattered in the Worldview, or Closed system is not in the Cosmic View or Open systems. Nor has it lost its connection to many more things we could hardly imagine yet.
The alarming sound of "the broken glass shattering" can be just as well be heard as bells of fanfare announcing it's freedom from a system that has no more control over it and can now either move-on to other things or move-up to greater things. Entropy is the only reference and insurance that the clock moves forward for the entire universe's benefit. Any sadness or inconvenience over some broken dish or machine is only, in the end, philosophical.
Cosmology please
Edit: and have Sean Carroll, too!!!
Dr. Greene, first, thank you so much for your series. I forgot nearly all my higher math by now, so I’m just hanging on to this series, but enjoying it! Since I only remember a quarter of algebra, here is a basic relativity question from that perspective. I am floating freely in space and see two trains hurtling towards each other, one going 335 million mi/hr, the other going 336 million mi/hr. Since nothing else is around to give perspective, am I in my rights to say that one is still and the other is actually going 671 million mi/hr, or faster than the speed of light? Also, why is light the only thing allowed to go that fast, and why is that idea accepted?
I'm fascinated by that psychedelic chair.
Expanding the universe is not like LOOKING at an expanding balloon, it is like STANDING ON that expanding balloon.
A Few Contrarian Thoughts (and a few critical):
But first, good advice at 23:28 in that in the world of physics, Grueling comes before Glamor (which goes for being a celebrity, too), and good key observation at 24:28 with 'Contribute'.
I would have said (to get philosophical), to keep asking questions and to keep being skeptical, but (on a higher and broader plane), to do so within the overarching guidance that the Philosophy of Broader Survival offers, i.e. to operate within the Problem Solver's Mindset, the Strategies of Broader Survival, the Great Struggle, the Pinwheel of Life, and the Ultimate Value and Goal of Life. So I would say to read, understand, and live by that philosophy, since future life (and artificial intelligence) (and physicists) will be using its broad, overarching, existence-guiding guidance.
Also, at 24:57 on broad vs. deep and on learning physics by doing problems and problems (beginning with textbooks), a 'great' physicist (which every kid dreams of becoming) will have done ALL of the problems in the textbook, INCLUDING the difficult ones that a typical school course never gets to (having to go 'broad' rather than 'deep'). 'Great' in physics is 'deep'. This does not mean ignoring 'broad', since broad is where new insights come from (as you put things together from various branches for the first time in human history). So there is your 'great'. Note: if you want to avoid the grueling, then love your work (love overcomes all, as they say).
1. On Curved Spacetime 6:15
First, we have to get away from the 'groove/indentation/valley' mental visualization of curved space. That inadequate visualization comes from the bed sheet depiction, which works mechanically, but spatially it is wrong. It would be more beneficial to visualize curved space it as it is, which involves bodies (such as spheres) acting in all directions at once.
Second, time does not bend, since time is an idea, not a physical property. It is a tool that we invented to track change. Sure, the clock's internal operations slow due to speed and gravity, but that is still just 'change' in the physical world. Silly physicists mistake time for a physical property, which misleads everyone else, beginning with science fiction writers writing about 'backwards time travel', which is barking up the wrong tree. You want to go back in change (meaning recreate it, since reversing it would be too destructive). Interesting explanation about objects "falling" at the same speed, that they are actually stationary and the earth moves toward them, but even that model has logical flaws (why isn't the earth stationary too, where nothing would 'fall'?).
2. On Our Universe Being in a Black Hole 11:30
First, If we were in a black hole, logic would have it that the universe would not be expanding, but it would be in the process of being crushed, or at least kept crushed, with no space between galaxies. You could argue that the external universe was expanding, which would include our crushed universe, but then you would have to factor in the speed of our being further crushed as the black hole that we were in draws in more stars and matter (the black hole's internal gravity thereby increasing).
Second, let's suppose we were inside of a black hole. Nice model, but the question is, 'Now What?' and the answer is we try to escape in order to join the greater universe out there. Third: try to imagine a functioning universe inside of a black hole (or plastered onto its event horizon), and all physics breaks down. The final litmus test is engineering. You cannot successfully engineer to an erroneous model.
3. On Acceleration and Time Slowing 17:58
Acceleration is the ONLY criteria working on change (in that example, which excludes the effects of the environment such as strong local gravity wells), since acceleration is the same as gravity, and since it happens during changes in speed, and not just the change in direction, as you argued. (changes in speed and direction both involve action and reaction).
4. On String Theory 12:06
First, on "a one-dimensional vibrating filament". You do not realize how silly that notion is, and this is why String Theory is a mathematical dead end as a description of the physical world. Here, it is claimed that a physical object has only one dimension, which is not possible. You need three dimensions, or the object is just an abstract thought which itself doesn't even work. As for more than three dimensions, the only hope there is that the extra dimensions actually describe different parameters of a three-dimensional object. You only have three dimensions for an object, no more, no less. More or less is either fantasy or erroneously applied. Get over it.
Second, you did not answer the question (on how a string produces a new particle), you went from how a string 'distinguishes' (which you should never have said) between particles to described how a string 'transforms' into a different particle (both by vibrating at a different frequency). So the answer then is that strings (even if they existed) do not produce new particles.
wizard Brian Greene
I noticed that in the classroom. The clock is in front of front of the room it would slow and the teacher would be walking away
From me it would Freak me Out it seemed she slowed down ! Slow motion it would happen a lot I don’t know why I picked that up thangs like cars ,people walking away ,, Thank you I really enjoyed this , and I love Fractals just think of the designs you could make wow !,
Coming out of North Carolina, I was wanting to know what you thought in the aspects of rewind in time for relativity, and if it were possible for an entity to do so
I've seen a lot of explanations for the falling apple, that it supposedly is in rest and the rest of matter is accelerating towards the apple... but how do you explain it if 2 apples on the opposite side of the world are falling towards earth? The world can't move in opposite sides at the same time.
Ireland watching 😊
I have traveled thousands of miles in the Northwest triangle from the Midwest to the far west to the far North with several diagonal hypotonous, and up to a thousand miles a week on a corealis around the S.F. bay area, and I have traveled thousands of floors up on the elevator and down on the stairs. I am the poster child for variable spacetime dilation.
I am always intrigued and mind melted by your presentations, but strangely enough, I am just as intrigued by a phenomenon that I am not even sure you are aware of... Namely the interference pattern created by the (threads) on the back of your chair! :)