Your Daily Equation | Live Q&A with Brian Greene
Live Q&A with Brian Greene - #YourDailyEquation: Join a live session with Brian Greene, 3 PM EDT. Relativity, quantum, the universe -- ask him anything that's on your mind.
We’d love to see & hear your questions for future Q&As with Brian Greene. Send us a video (less than 20 seconds please!) of yourself asking your question to: questions@worldsciencefestival.com
Monday - Friday at 3pm EDT, Brian will offer brief and breezy discussions of pivotal equations. Even if your math is a bit rusty, tune in for accessible and exciting stories of nature and numbers that will allow you to see the universe in a new way.
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I am SO shocked and excited that he read my question..wow I'm happy
great question, Bonnie
Please do not stop these. It`s like the only thing that can keep me awake. You can get more technical if you like, I personally intend to study these videos (with play/pause) in order to make an effort to understand more deeply the subject of our existence. Great work, thanks a million.
Yes! Bell's Theorem for Monday's Your Daily Equation.
Great series Professor Greene! I generally watch these everyday with breakfast before work. On free will, I want to highlight Quine's view that the requirement of the freedom to will what you will in order to have free will is too strong and leads to an infinite regress. You get a similar infinite regress if you require that you must know that you know in order to have knowledge.
In the free will is an illusion argument, you've defined free will as our wills taking causal precedence over scientific laws and the chain of events before our births. I agree we don't have this sort of free will. However, this is also not the sort of free will which we feel we have when we choose strawberry over vanilla, at least speaking for myself! So it does not follow from your argument that free will is an illusion.
It might be true that we couldn't have acted differently and it's an illusion when we feel we could have. But I'm not sure this matters as much as it may seem. Imagine you have an agonizing decision to make, and a fortune teller offers to save you sleepless nights by telling you what you're inevitably going to decide anyway. I suggest that you don't sacrifice your autonomy by taking the offer. It doesn't matter that the decision was predetermined; what matters is that it was predetermined by you, at least to some extent. It's still your decision. In that sense, you have free will.
What a man! I was a Professor Of Maths and Businees Computing for a number of years; watching you "perform" makes me miss those days. Thank you for your work!
Glad to see you stoking your ego over how complicated you can make something simple. This is why there is a stagnation of physics.
I'm embarrassed to breathe the same air as you
I absolutely agree with your perspective on free will. Great explanation and amazing informative video 👍🏽
More Math! Thank you professor Greene!
These are fun. Thanks Brian.
Without a doubt one of the few best contents to make KZhead worthwhile.
Please, keep going on math. I love it!
I miss these!!
Keep with the math. It's starting to sink in.
fantastic
Love you Brian from Pakistan
Sir, please continue with the mathematical explanations in the daily equations.
Great !
Love technical! Keep it going, I thoroughly enjoy your series. Thanks for taking up your time to speak to us.
Sir, it does not matter if u do lecture basing technical and non teachical because everything of ur lectures is truly fantastic worth of knowing. I am a grade 10 students, and I love i every lecture since I started watching.
i just want to let my mind be and see where it goes , your a cool dude Brian
Hello Professor Greene , my name is Apratim Chatterjee. I am from India.I am very much passionate about physics and especially I am deeply interested in knowing the nature of Time. So I would be glad if you can just shed some light on what exactly is time. Can we truly measure time or is it just our way of keeping track of things with the invention of clocks. If time is a 4th dimension and as 3 dimensional beings, is it ever possible to really uncover what time is and how can we measure it just like we measure space by calculating distance because we can't feel time like we feel 3d space. Aren't we just experiencing change and think that it time that we are experiencing? It would to be great to know this from you.
Professor Greene, Love listening to all your lectures and shows, Question how can a particle, have no mass and still be a particle ??
The particles that don't have mass still have energy. Energy is the more fundamental concept and mass can be explained in terms of energy.
A brief technical overview while explaining topics in the broader sense would be much better I suppose. It would help clarify certain concepts that might not necessarily seem obvious without technical insight and it would also help some of us who are interested in learning the deeper technical aspects after having watched and read many similar videos and books covering the general content. Btw thank you Brian for the amazing content!! :)
Dr.Brian, is the speed of light constant and unattainable in the concept of a Multiverse too ??? And thanks a lot Sir, for your views on the Simulation hypothesis 58:17
I would appreciate some videos about thermodinamic and entropy
Hi Dr. Greene- do you have any plans to bring back these Q&A? Thanks!
Please keep the math but with your beautifully simple explanations as to what they mean ! We need somebody to take as through the Einstein Field Equations that we can all understand how they are derived without needing Masters level math. Thank you
Do we know if the speed of a gravity wave is independent of the direction it comes from?
we believe in free will because we are so into the past and present and cannot see the future but in hindsight it's obvious that we don't have free will.
MrTommy4000 I make a similar argument to people often: If we could rewind time and let history play out again, it would happen exactly the same, because of the position of matter and the laws of physics, thus disproving free will.
Q&A: Hi Professor Brian Greene. Sir, Could there be alternative or advance explanation for how gravity works despite Einstein’s general relativity (even though it explains gravity so perfectly). And with that “Another Explanation”, will we be able to answer some unsolved questions like grand unification? (Like Einstein did with his theory for Newtonian explanation.)
Hi sir . can you please give some directions for students who are interested in the exquisite concepts of physics and whom really want to know a lot about it .
I have a quantum mechanics question in regards to atoms for Brian. How, what path do I take to ask my question?
Sir can you do a video explaining non-euclidean space, its reallly hard visualising it.
Hi! Can you recommend one good book to self teach Quantum Field Theory.
I want Math with explanation on daily equation.
Can it be said that the total energy of the universe divided by the total mass of the universe equals cxc?
Hi Brian, I would like more ideas and less maths,please 😀 I really enjoy your daily equation and look forward to every live session every Friday. I wish you do that for a long time. I don`t want it to end.
I would like more maths. So its a tie...
More math
Actually, you can find many KZhead videos that explain the ideas without much math, while there are very few that delve in the math.
He wanted us to let him know. This is simply my opinion
@xvalq great comment and opinion. That is what professor Greene asked.
Sir, please do keep the sessions more technical, like the one you did in Lagrangian episode. We lack such useful content tbh!
I don't get why in quantum entanglement we can't use the measurement itself for sending information. Couldn't we transmit binary information with a large number of particles by detecting the moment each particle on the receiver end collapsed?
I think Godel's theorem applies to the mathematics of physics, but it largely irrelevant to physics of the world. If we take Penrose formulation in terms of not being able to predicted (prove) a given 'Turing machine' stops or not, that kind of uncertainty permeates the physical world. Even something as simple as the three body problem is unsolvable and the only way we can find out what will happen over the long term is to watch. We can simulate, but that has limited accuracy; but we can't solve and just plug in a time to see what's going to happen. Godel's theorem doesn't govern how the worlds works, but it does limit how well we can describe it. i.e., limits how well physics can describe it, but does not keep the world from proceeding and doing what ever it does.
Is there more than One Dimension of Time ?
Its 3 AM in India
With regards to Greene Tea. I think it's about the objective beauty... if the tea responded to the jiggling by sending a small globule pirouetting into the air and back into the mug and rather than just sloshing predictably...
do you think stings are tachyon's
26:11 is one spot you don't want to miss
Don't dilute the math. You called it "Your Daily Equation" for a reason, ;) What you're planning to present sounds great.
Hi, Brian! Alex, here. What do you think about higher dimensions entities? Is 3D space an ilussion created by our brain, or is it that we are trapped in this space and that we cannot interact with higher dimensions universes?
I missed it...😭😭😭
Hi
Is my behaviour Quant I zed?
Dear sir, what would happen to entangled particles if one of them falls into a black hole? Would the entanglement still hold, and if yes can there be any interaction possible between them?
I see no reason for the entanglement to be severed . In that case it safe to assume one would react normally when its pair was measured.
@@Unkl_Bob if that's the case, it would mean we are able to extract information regarding the particle that went inside!
Although we can not control what happens to us, don’t we control how we respond to the events in our lives, thus exercising free will?
I think that's just one aspect of where his argument falls down.
Mary Karen Solomon your specific response to events in your life can’t be defined as free will, because there is no way you can do otherwise. Your reactions are bound by the way your specific brain interprets your environment. You have the illusion of choice largely because you can imagine alternate outcomes, but if time were rewound, and your life played out again, there’s no reason to believe it wouldn’t be exactly the same. How could it?
I'm very interested in math and how infinity really exists in calculus but the math on your latest videos is getting too complicated for me.
Awesome as always on the Physics! Have to disagree on Free Will which is far more complex a question than presented here. "We do not get to choose what is random. Therefore randomness does not give us free will as we think we have it." ~ non-sequitur Correct premise but conclusion does not logically follow. Listing things we do not have a choice over is not an argument against the things we think we do have a choice over. We do not need to be able to choose 'random' we only need to be able to make choices and control our behaviour as we think we do without illusion. Our behaviour maybe determined by nature but we are a part of nature so why conclude we are not the part that actually controls our behaviour as we think we do? Physics is not the be all and end all of Science. Biology is not reducible to Physics which only describes the lower tier noise that enables higher tier complexity to emerge.
Could the Big Bang be caused from a ‘ tiny hole ‘ in a surrounding Membrane of Another Universe ? Perhaps when a Universe Expands to such an extent that a /the Membrane allows for escapes of New Universes from that Universe. Perhaps a Universe is always fighting that Membrane !
F=ma means that if acceleration is equal to zero, or the velocity doesn’t change with time ,as is the case in free fall motion, the Force, F is also zero. This is why the ‘weight’ is also zero. The weight of the Earth is technically equally to zero because of its free fall orbital motion around the sun. Notice that even if the earth is orbiting the sun at a constant speed, because velocity is a vector and the direction of that vector is changing, the earth is still accelerating and experiencing a force - the centripetal and centrifugal force (balance). So astronauts experience weightlessness in orbiting space stations, not because the force of gravity is weaker at high altitude earth orbits, but rather the space station is in free fall motion. You can think about a space station having a orbital trajectory that extends out past the earth’s horizon and so as it orbits it is in perpetual free fall motion. To achieve this a minimum orbital velocity is required at that particular altitude.
How can the existence of the universe be without purpose.we do not make anything not to use it.
You assume that an anthropological identity like us created the universe.
@@aviralgupta393 I don't assume anything.I am just puzzled by the mere fact of the reasons for "being" .why not "not being".
I prefer more math!
Hey Brian, my brain glows and screams ERROR!!! Why is 0.5c + 0.4c (= 0.75c) not equal to 0.8c + 0.1c (= 0.833..c)?
Good one , but due to relativity formula.
Because it's not 0.5c + 0.4c (this is the Galilean relativity formula for adding velocities, which Einstein corrected), it's (0.5c+0.4c)/[1+(0.5*0.4)] = 0.75c, and it's (0.8c+0.1c)/[1+(0.8*0.1)] = 0.833...c.
Also if there is no free will then how to particles know when to decay.........you can predict statistically, but you need a group, just as with humans. Humans are predictable in groups, but not individually. You have said that you do not believe that particles can have consciousness, but that is because of the definition of consciousness we use. There are things we choose to do and other things we do basically on auto pilot.........when you need to make choice about something important or of larger scale, our mind uses both unconscious and conscious processes, but the fact we are not aware of some of the things going on in our mind does not mean we lack a choice because some things we will do without thinking like a particle bouncing off or another particle instead of the electrons coming together and forming a different particle.............however, if you give them enough energy that very thing can happen..............when you are about to be bitten you move your arm without thinking. At that moment your free will is superseded.....when you choose where to do to eat, you base things on a much more active process...........some things in the mind happen because of how we focus our brains on the choice itself.
A simulator scenario - created as a problem solving environment. We live in one reality, but creating multiple instances of reality increases your chances of solving a particular hard problem. So instead of having one Einstein, you could create multiple Einsteins, if you had enough information about the original. Sounds like a Sci Fi movie.
Brian can u give a wave to the welsh people
A wave or a particle?
7Earthsky lol lol lol got to admit Brian’s live sessions are cosmic!!!
No
Why on earth would someone want to drink tea out of a jar with a handle?!
You just described a cup. Congratulations.
Are most of them students on this video from grade 11th or 12th