ฝัง
- เผยแพร่เมื่อ 12 ก.พ. 2013
- All parts of the lectures can be found in this playlist
• Quantum Mechanical Vie...
Richard Feynman discusses Quantum Mechanics in a workshop at Esalen. Topics are: Heisenberg's uncertainty principle, Bell's theorem and the Einstein-Podolsky-Rosen paradox.
I decided to upload this workshop, because I could not find it youtube. I think everybody should have the pleasure of experiencing Feynman's teaching, even if you cannot afford the DVDs.
I DO NOT OWN THIS MATERIAL. IF IT VIOLATES COPYRIGHT OR SOMETHING LIKE THAT, I WILL REMOVE IT IF I AM NOTIFIED OF SUCH A VIOLATION. - วิทยาศาสตร์และเทคโนโลยี
The bit we missed before part 1:
The 3 charges may each be in a state of red or green.
The light is initially off.
Pressing a charge's button shows its state via the bulb.
It shows red/green equally often for the first press.
Repeated pressing of the same button keeps showing the same information.
Pressing the button for different next charge sets it to the opposite state of the previous charge with probability 3/4.
The color shown is the ongoing state of the charge.
what is this all about ? boxes with broken switches ? I am under impression, that I came in the middle of the lecture. What are those boxes for ?
2012
If I'd looked at the comments before watching, I'd have found the bit I knew had to be missing! Thanks.
This is perhaps one of those things that save TH-cam. Without YT or something similar, it would be difficult to find videos of Feynman talking to a classroom. Now, a couple of clicks, or a quick search, and you feel like you are in the room with him. We live in a privileged time.
i agree with you ❤
What a wonderful professor.Its a pleasure to listen to this wonderful teacher and Scientist.....
Training suit and bare feet. He simply didn't care. And good for him, he knew what things to worry about and what not. Explains his eternal happiness.
straight from the madhouse
Paul Freedman lol I think they all weren’t wearing shoes, they seem to be in a small conference room
Paul Freedman. Feynman was not happy. He is filled with doubt. That’s what made him a great scientist but troubled human being
The lecture occurs at Esalin. No mystery why there are no shoes or pomp.
@@maximkind5447 What makes you think doubt made him a troubled human being?
Giving a Lecture about Quantum Physics barefoot.
What a legend
Nature creating Richard Feynman:
"Let's make a human with the brain of a scientist, the humor and eloquence of a PBS host, and the voice and accent of a Mafia don."
You forgot the barefoot part.
His voice is so comforting.
DeuceGenius Yes! Listening to Feynman while working sounds like a great form of meditation. If only I could have a professor like him!
Nice accent too
But he became skinny when he was old, so weird
@Anubhav Mahapatra He sounds like a 1930's gangster! Love the New York accent.
@@pancakebb6384 I believe he started working out when got a bit older. Jogging and stuff like that
he's so charismatic and gifted :D, wish he was still with us
He is one of the people i would bring back if i had the power.
a genius + track suit + double slit experiment discussion = Good times
"Everything is jiggling." Ah, the beauty of science!
He explained everything with subtle details just as he only does. Excelent teacher.
only he does
What a neat human, happiness radiates from him.
Ooh lord he's soo deeply Brainy. And logical but added to that he can keep all this stuff free floating in his brain and refer back to it. Anytime. It's stunning to watch a MAN A LIKE this thinking. . Stuuuuned. I thought I knew a few things. That I could carry on a hold argument in my head. Then I watch Richard F. And slowly watch my brain melt. . Sad day that he died. Bless his soul
I was at CalTech the year he retired. Unfortunately didn't get to see him speak. Thank you for these videos.
I am grateful for all the uploads you made available! THANKS.
It is so important to get a teacher who can explain the very complicated things with clarity. The most important thing with a teacher. No doubt Feynman was so gifted maybe his biggest achievement. This is pure gold see him teaching
a priceless moment in time.......already a historical "gem".......superb content !
I like how the guy at 9:10 comes up and tries to introduce the double slit experiment as though Feynman needs an introduction.
Every time I see his videos, i fall for him again and again.
He made things comfortable. The environment, the discussion, the understanding. I mean look at him he even looks comfortable.
How can you not love Mr. Feynman
Ahem... Doctor... Feynman...
Surprisingly better quality(sound mostly) than half the stuff now days
But still TOO LOW.
@helberg you have done a service to many people, including me. Thank you very much.
That outfit! Bless his heart. Love that guy
TY for all your hard work and content contributions…just appreciating
Thank you for uploading these OP.
Richard Feynman is a masterful lecturer, just incredible to listenn to
Thank you so much gr8 upload. Feynman is my personal hero !
TY!!! Been looking for this for years
A legend whose contributions were to simplify various concepts in modern physics.
More than just that but okay…
Feynman was such a special human being, he smiled with his eyes too.
As much as I'm enjoying the lecture, I'm more thrilled that I understand Feynman diagrams much better!
Yes I remember watching him in the 70's. On the BBC. Laymen like myself did'nt fully understand then. I think ! Now, 40 years on, it all seems understandable.
He's like some guy from 10'000 years in the future, trying to explain to us primitives what's obvious to him.. Feynman was a superman.
i dont think thats true and im also pretty sure that he himself would disagree on the superman part. he is extremely interested and has a great joy.
@@BuGGyBoBerl everyone can be like feynman right
@@susisusanti-jz4wo lets say many have the potential.
By far my favorite character of all time.
Thank you for uploading this!
Thank you for posting this!!
Thank you for uploading this.
If you want jargon so you can look up the details, the three buttons measure the x, y, and z axes of the "Bloch sphere" of a qubit. In the Dirac notation they measure in the three bases: the z-basis is |0>, |1>, the x-basis is sqrt(1/2)(|0> + |1>), sqrt(1/2)(|0> - |1>), and the y-basis is sqrt(1/2)(|0> + i |1>), sqrt(1/2)(|0> - i |1>). The boxes start out in an entangled state like sqrt(1/2) (|00> + |11>), so that whenever you get "red" for button z on box 1, you get the same on box 2.
My new goal in life is to own a track suit just like Feynman's.
did you ?
@@gorkemaslan1858 Not yet, but if I keep working hard I'm sure I can achieve this goal eventually.
I suspect somebody found a collection someplace. Can't be sure though.
It's pretty keen though. How glad I would have been to attend this lecture. Now I can.
So greatful I found this 😁
I'm not sure I said anything about Pauli matrices, but the pauli matrices are certainly used to describe averages and rotations on the Bloch sphere, and I could certainly tell you about those. However, in a deeper sense I was wrong: re-watching this, though x, y, and z buttons are an interesting way to explore a similar concept, they don't generate the same statistics that Feynman was talking about. I'd have to think about what you need to get those statistics.
I would be in the catch up group.
Haha tell me about it.. i would be making the sandwiches
Too right. I'm sure the other guy knows his stuff and is very good but I'll stick with Feynman.
I'm always in the catch up group.
CarolinaSoulStar
Oh dear.
Same ,,,, jiggle jiggle jiggle
1. Public Domain. PD.
2. Fair Use for private study, research or education.
Richard Feynman died in 1988. He would be happy this video is Now in public domain or Fair Use.
NO LEGAL REASON TO REMOVE VIDEO
Public Domain or Fair Use
i can't his happiness is like the most beautiful thing for me
I don't know why that the gentleman in the audience, had a problem with the math. Feynman is very correct, that one can only measure something so small, and that would dictate ending the formulas sum at that amount, however, the theoretical formula's sum could continue on and on, to such an infinite, unmeasurable, and minute amount, that it mattered not. That is why numbers are rounded off, because after so far, it matters not, even though the actual number continues to infinity. That is like dividing 1 by 3. If thinking about nuclear weight, say of an atom, that is rounded off, too. Nature, for some reason, is built around, and loves the number 3, like our 3 dimensions, and cubed numbers. These can equate sums of infinity in the formulas.
+craxd1 nature exists in 4 dimensions.
theroguetomato1
I'm not speaking of adding time to the dimensions, which is the fourth dimension. Height, width, and depth are the three. I am speaking of the three dimensional Euclidean space, leaving time out of it.
+craxd1 I think the questions he answered weren't about a math problem so much as a symbol translation problem. How do the diagrams relate to reality, or where in nature do we find them? Feynman explains by showing how any given diagram deals provides all the necessary information to work out the approximate answer and is limited to to the order of magnitude; and so when he's asked specifically (approximately 15:10 and onward) he says "each is a piece".
It is basically a reiteration of Feynman's basic defence of quantum electrodynamics as well, which is that it agrees with experimental data to incredible degrees of precision, and therefore that each new discovery should have a corresponding set of diagrams to begin to explain how the parts we can cannot see are working, from the parts we can only now begin to see... ("We find them all, as nearly as we can measure!")
Forgot bout simultaneous...
Feynman strying to expose+explain=simultaneity as measure of the unidimensional variability of the genesis of principle, thy born... autogênese? Equitemporal...
what was the discussion or lecture BEFORE this one? Seems to be starting in the middle of something already.
It may be said that one can honestly say that with a thorough understanding of CIG Theory, that one understands Quantum, and Classical, and the difference between the two. But of course I am biased. However, for any Physicists on their deathbed, that deathbed upon which we will all lay one day, and have been struggling for years with the Quantum Confusion, that CIG Theory will be soothing, that CIG will give them a profound sense of accomplishment, that they will find that the reality of reality finally makes sense. So, if you know of any Physicists that would like this accomplishment, please bring CIG Theory to their attention. I believe it will bring them smiles.
How lucky this audience was!
I love physics & chemistry. I like a lot of his points! His birthday is the day right before mine !
Thank you for the video.
Feynman is the David Lee Roth of physics.
Why? why? WHY in the blue hell would anyone dislike a richard feynman video?
How is he so charismatic, smart, and looks like a rock star.
I didn't know Laird Hamilton was also a theoretical physicist. Impressive!
I wish this video had begun earlier when he explained whatever it was about the boxes. I find myself in the position of the three flunkies, unable to understand any further elaboration, as the underlying principle is unknown.
michaelrose93 he's basically talking about "Bell's theorem" and the problem with any "hidden variables" style interpretations of quantum mechanics. You can google for these terms to see various attempts at explaining these problems.
Uncertain for surely
Are there any vids of him teaching with shoes on..?
I like that kind of scientific talk.
Where can I read more about the thought experiment with the boxes and the buttons? Here he doesn't explain it from the beginning but reviews it. I would like to read about it more thoroughly.
what is the part before the video that is up the mountain?
Those lucky people, that they had chance to talk to Feynman. I would be literally speechless :D.
I don't know what the problem is either. I have a couple of degrees but math isn't my strong suit but l understood in principle what he was saying. Feymann truly was an amazing teacher.
You ability to interpretative data and get meaningful information… perspective and queries … relevant or extemporaneous
I'm not even a physicist and I understood the general idea of the diagrams.
I think its that the small percentage of people who are both interested in the subject and aware of Feynmans brilliance have hit a large enough number to intersect with people who are familiar and technically savy with youtube. Because the view numbers are still relatively low when compared to other items of popular culture.
10:00 onwards, a lot of people have problems with that. Only if you consider the feynman diagrams as real (which they are not as stated) you can start discussing if virtual particles are real
What a cool guy. He is top 5 physicist for me
18:00 is when everyone gets back.
Question for you on other side ?
Quanta vs shape configuration
Of polynomials Planck
Speed of shape nodes like square
Triangle and hexagon where does
Quanta colors fit into shapes
While Quanta sizing which shape
For which path . He would probably of answered .
Quick Question:
Let's say you press button 1 on box 1 and get red.
You then press button 2 on box 2.
Will you have a 3/4 chance of getting green?
What's the reason that complete lectures were chopped up into segments that start, and stop, abruptly? Can they be found in complete form? Where?
That outfit is a cross between Jack Lalane and Elvis Comeback.
It sounds like the guy who asked the first question regarding Brownian motion was Leonard Susskind. Around 3:40
This was a 'workshop' at Esalen? That seems like it is an artsy-yoga kinda place. And Feynman gave talks there?!
IT'S THE FEYNMAN!
The brownian motion was
first discovered by the atomic philosophers Democritus and Epicurus it is described by Aristotle when he refers to Democritus and Leucippus. It is also described by the epicurean Lucretius, and it is regarded by them us the evidence for the existence of the atoms.
Don't know what you mean by "calculus of imitation" but I am encouraged that you admit that civility is possible. There's at least one reason why we should be civil and that is because we think other people matter and that we are not, therefore, little islands of solipsism. As for the "f-word" being too concentrated for me, my concern is that is coarsens the hearts and minds of those who make such words the foundation of their?...what?...poetic expression?...appreciation of beauty?
That track suit is seriously suave.
best drum solo ever
I thought it was played by some professionals!
What year and where was this talk given?
Maybe add it to the video description?
Woah what was that convo on Feynman diagrams about? Did Feynman just get pwned??
More Feynman the better.
That explains why these videos are popping up. As for the low view numbers, I strongly suspect most people just don't have the interest to think deeply about these subjects, or don't have the intellectual capacity to do so. It takes some intelligence, patience and quite a passion to get into physics.
we all have intellectual capacity, just not equal development and environment....
What conceit.
It starts at 18:08
15:40
auto translate
1: ash lanka s
2: schlock asses
3: strong cases
4: no schlump this
5: ones longest
6: schlong cases
7: sri lanka stirs
aaaaaahhhhhhhhh!!! THE GREAT EXPLAINER!!!!!!!
There are different theories as to what is life but I would argue it'd need to be counter-entropic. Even though the overall entropy increases the living are counter-entropic and even this out by making their environement relatively more entropic through the heat used to pruduce their counter-entropy
Thanks Kyle
yes
There can't be no chicken in the ice-box because there's no beef in the ice-box, and a cow is so big that there wouldn't be any room left for a chicken.
Anybody who doubts this obvious fact is probably thinking of a different fridge.
I love Richard Feynman.
Best man. Period.
Best Physicist. Period.
Best Human Being. Period.
Kevin Hambleton It also saved millions of lives by forcing Japan to surrender. You can't just attack another nation and then whine when you get your ass whooped.
Oners82
Japan didn't surrender because of the bomb according to Freeman Dyson. Check out this video
/watch?v=zq4p2qbE684
fiveredpears I was not arguing that the bombs were solely responsible, but is is the consensus of historians that they were a necessary part, combined with the threat posed by an imminent Russian invasion.
Dyson says that the bombs having no effect is confirmed by the speech of the emperor. I respect Dyson immensely (as a scientist), but I found this statement incredibly naive on his part. Hirohito was trying to manipulate the troops into surrendering, and the most effective way of doing this was to appeal to their sense of nationalism and to justify the position that surrender was not dishonourable, as it was in line with the actions of the greatest emperor of the modern era in Japan.
*Of course* he would not say that they were surrendering because of fear of the bomb, there would have been a military mutiny.
It was a blatant piece of propaganda relying on emotional manipulation that reveals NOTHING about his true reasons.
The truth is that continued war against Russia combined with further nuclear strikes would have been the end of Japan, they had to surrender. Denying that the nukes had any effect is delusional.
Read the book of Faynman and wished I could be at the lecture. But after the video, it seems the book is better. :(
13:06 explanation of track suit :
“It’s hard for me to multiply - it takes a lot of work”
^^^this is supposed to be humorous.
When one thing happens the next thing that happens is most likely not the thing that just happened that is the uncertainty principle
Looks like Richard may be doing some pimpin on the side.
He was pimping those quarks
@21:00 : It's pretty similar to the mermin's proof of Bell's inequality.
0:32 Actually, Feynman's way of thinking is very much philosophical.
Esalen Institute, Big Sur CA, Nov 1983
I'm with Richard, I don't know why that guy around the middle kept not accepting the explanation of Feynman diagrams as approximations. Maybe it's because I grew up looking at said diagrams, but it's a little weird someone at this level is still confused by them.
1983 at a local YMCA based on his track suit.
ProjektaV2 IT was at the Esalen Institute in Big Sur, California. People paid big bucks to go learn from experts in their respective fields.