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.
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.
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?
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
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.
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.
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.
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.
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
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?
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.
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.
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 ??
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?
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.
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.
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?
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?
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
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...
7:00 I dont understand this. Two things move away for each other, accelerating. If there is no third observer, then can one know who is the one accelerate? How do I know that it is me who changed the direction? We just saw that now we are moving toward each other. Feeling the acceleration depends solely on one's mass? Not depending on gravitation? The gravitational field is marked with coordinates? Why do I feel the acceleration and not he? I dont capture the difference, from which one may derive that the motion is not symmetrically relative, rather that one who can be considered the stable center of the system. Can anyone help me with this?
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 TH-cam, both personally and with the WSF. ~ Aaron Sampson
I was a great fan of 2001 a space Odyssey movie, and I was thinking about the engineered satellite that rotated in earth's orbit that they showed. So now I have my question's setting, what radius, would be necessary for someone who is 6 feet tall to walk on the floor of the satellite and feel something like earth normal gravity, what would the feet feel verses the head of a person six feet tall.
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 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 BGreene, with Mass and Energy being interchangeable, or interactive, why is it necessarily impossible for Time to be converted to Space, and Vice Versa, Space being converted to Time, so does it make any Quantum sense to say Time- Space is Conserved, same as Energy -Mass is Conserved.
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!
Prof BGreene, in the Time-Space domain, with Time being, understandably (spelling?) more Intangible Concept, and thus Space being more Tangible, if we now think of Time as a Command, and think of Space, say, Commanded-To, much as Master Slave in Computer Network, is it possible that Time plays the major role, and Space is less effective?
Antimatter goes backward through time, and may appear as photons moving faster than matter, yet there are photons at the center of matter that is definitely moving at sublight speed.
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?
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
Imagine pre - bigbang neutra-matter when one Lepton lept on, one particle moving through neutra-matter would deflect/repulse other Leptons while a positive is created by the one Lepton leaving, then all the displaced negative Leptons are attracted to the positives, now created, their inertia doesn't stop when neutrality is reached, therefore an ultra negative is reached, repulsing all negative in the inverse square law neighborhood, starting the big bang that was time dilated, where nanoseconds took eons to evolve.
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.
In quantum mechanics, energy levels of electrons , change when they absorb energy from photons. Then wave function which is defined all over space must also change. Will this happen instantaneously .
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?
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. 😂
Thank you for all your work. It changed many lives.
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 thank you for all you do!
mviyyuuuuuuudtd
If
@@jilliankovalsky3775 hi
@@jilliankovalsky3775 hi
@@jilliankovalsky3775 h
Always a great listen - one of the smartest people put there imo 😊
This guy is awsome . Good answers.
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.
BLESSINGS!!! @LOVEYOU
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.
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.
So interesting. Thank you!
I thank brain green for the information he is putting out there for us to answer our questions
Mr. Greene, you grow a lot like Albert Einstein 👍.
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?
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....
:)
Can’t stop watching. Charleston, SC
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.
I love this guy!!!!!!!!
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!!!
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...
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
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.
Thank you for all your hard work
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...
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!
such a humble guy, lov him
Sir, Please explain klien Gordan equation, Dirac equation,and other equations related to QFT.
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?
Dimensions are perspectible
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.
Nice answer for 'what's the meaning of it all' Brian. :)
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
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?
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.
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.
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 ??
Can you discuss Ahranov-Bohm effect and what that means about vector potential?
Hi Brian! Love the talks and other videos! Cheers and Happy Holidays from Anmore, British Columbia
Sir please try to make your next DAILY EQUATION video on the evolution of THE UNIVERSE & BIGBANG
Yes, I hear you perfectly.
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?
My intelectual hero for the moment
Life is endless TRANSFORMATION
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
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.
Very 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.
Well-being, restored
The entire universe is a planet around another BIG star ,which helps explain it as a part of multiverse
Love this so much 🤙
Greetings from Bandung Indonesia
I hear you
I hear you don't stop
Who noticed the windy trees in the backgrou nd? Thank you GREENE
Love
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.
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
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?
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?
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
"Simultaneously" is quite the adjective
How physicist approaching communication with the community daily!
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...
7:00 I dont understand this. Two things move away for each other, accelerating. If there is no third observer, then can one know who is the one accelerate? How do I know that it is me who changed the direction? We just saw that now we are moving toward each other. Feeling the acceleration depends solely on one's mass? Not depending on gravitation? The gravitational field is marked with coordinates? Why do I feel the acceleration and not he? I dont capture the difference, from which one may derive that the motion is not symmetrically relative, rather that one who can be considered the stable center of the system. Can anyone help me with this?
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 TH-cam, both personally and with the WSF. ~ Aaron Sampson
I love the math but make whatever changes necessary to keep viewers interested and this series going.
Hi Brian, Can you please make a video on Dirac equation? Regards
thank you is the partical swashed and explain when released ?
Brian also how do you apply the energy to space in order to make it stretch if you have the energy in the form of photons
I was a great fan of 2001 a space Odyssey movie, and I was thinking about the engineered satellite that rotated in earth's orbit that they showed. So now I have my question's setting, what radius, would be necessary for someone who is 6 feet tall to walk on the floor of the satellite and feel something like earth normal gravity, what would the feet feel verses the head of a person six feet tall.
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.
Since this was published 7 months ago is it really live? Or is it dead? Is it in a superposition of being both a live and dead broadcast?
Yes
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?
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.
We could be looking at two dimensions through a lens and quantifying what could be.
wizard Brian Greene
Dr BGreene, with Mass and Energy being interchangeable, or interactive, why is it necessarily impossible for Time to be converted to Space, and Vice Versa, Space being converted to Time, so does it make any Quantum sense to say Time- Space is Conserved, same as Energy -Mass is Conserved.
What is Closed time loop ? Professor Greene
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!
Prof BGreene, in the Time-Space domain, with Time being, understandably (spelling?) more Intangible Concept, and thus Space being more Tangible, if we now think of Time as a Command, and think of Space, say, Commanded-To, much as Master Slave in Computer Network, is it possible that Time plays the major role, and Space is less effective?
Could you, please, devote a session to Boltzmann brain?
sir please explain why do clock move backward when we travel faster than speed of light?
Antimatter goes backward through time, and may appear as photons moving faster than matter, yet there are photons at the center of matter that is definitely moving at sublight speed.
Greetings from Brasil
Tudo bem!!
@@jacobm5167 Tudo. ;-)
Eu gosto muito desse canal. É uma higiene mental pra mim.
Brian how does space absorb energy Thanks
How would you talk to your ancient/ simple self. How can a simple society be moved to a Global society.
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?
My chosen polarity effect the universe in the presence of heat.
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
Sir I am very curious to know why or how moving charge produce magnetic field
Imagine pre - bigbang neutra-matter when one Lepton lept on, one particle moving through neutra-matter would deflect/repulse other Leptons while a positive is created by the one Lepton leaving, then all the displaced negative Leptons are attracted to the positives, now created, their inertia doesn't stop when neutrality is reached, therefore an ultra negative is reached, repulsing all negative in the inverse square law neighborhood, starting the big bang that was time dilated, where nanoseconds took eons to evolve.
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.
Greetings from Wales (UK)
I like the idea of a finite universe with an infinite shape = or vise versa ∞
Sir can you explain the equations of general relativity
In quantum mechanics, energy levels of electrons , change when they absorb energy from photons. Then wave function which is defined all over space must also change. Will this happen instantaneously .
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?