Richard Feynman on Electron 2 Slit Experiment ,After noise reduction
Пікірлер: 99
@DermioRG4 жыл бұрын
A criminally under-viewed video. Thanks for this incredible upload
@michaelblankenau65985 күн бұрын
What should the penalty be since you say it’s criminally under- viewed ? And what statutes are you referring to ?
@michael-4k40004 күн бұрын
If you think you know Quantum Machanics you don't know QM! Lol best line ever?
@KD-xy8kq3 күн бұрын
exactly.. these geniuses are lecturing about big science thing and could not even shoot the video in color let alone HD. 😂😂😂. also using the black board and chalk😂😂😂
@LeeGeeКүн бұрын
@@michaelblankenau6598in English we use figures of speech which may be literally true. Good luck on your learning journey.
@michaelblankenau6598Күн бұрын
@@LeeGee If only your comment made some sense . But it doesn’t.
@tonyfluxman74263 жыл бұрын
What a pleasure it is to listen to this man (audio problems notwithstanding). He doesn’t flinch from explaining the issues honestly and clearly. Compare to many other videos online on the same topic where the explanations are frustratingly unclear or incomplete.
@shanejohns7901Сағат бұрын
He makes learning fun. And that's not a common feature as expertise rises. There are plenty of people who know how to make basic learning fun. But by the time you get to the level of understanding that Feynman has, you lose a lot of those. Not all of them, of there wouldn't be any. But they are rare. And Feynman is one of the rare ones.
@jaymzs4 күн бұрын
Am I the only one that saw the title of this video and wondered why "noise" was affecting the double slit experiment ?
@darrenskinner37113 күн бұрын
No…I wondered that too 😂
@scowell3 күн бұрын
I believe the audio was processed... that's what it's referring to.
@jaymzs82213 күн бұрын
@@scowell yes…. Yes.. that is what it was referring to. Thank you for the enlightenment.
@vincecallagher76363 күн бұрын
I think they are speaking of visual not audible noise.
@ethernitcz2 күн бұрын
Oh! I realized what's going on only after reading your comment. I was also waiting, when Feynman starts talking about the noise :)
@javiermachin13 күн бұрын
“It is necessary for the very existence of science, that the same conditions always produce the same results” “Well, they don’t…”
@LeeGeeКүн бұрын
Very much appreciated upload.
@user-dh6fx1ve9j4 жыл бұрын
two sheets and a lamp, and universe seems broken
@RickarooCarew2 жыл бұрын
this may be Feynman's finest gift to us... it is applicable to all systems that are governed by random events... like economics.. or other human behavior... think about it... please 🙏
@RickarooCarew2 жыл бұрын
it seems counter intuitive.. it's not... we have grown up with the idea that the more we can control a process the better the results are... in the case of a machine, that's true... in the case of random systems.. it's not true. because ==>> duration in a random system is brought about by positive reinforcement... negative reinforcement cancels out... if I try to measure a positive input.. value= 1 it looses energy and becomes some decimal value between 1 and zero ... and not always the same amount.. so there's no reinforcement.. it brings destructive interference... fractals occur on the border between order and chaos.. our lovely Universe is fractal it works best when we don't try to control it ✌️
@mnojkl321710 күн бұрын
It's interesting to see him mildly nervious, and using notes during his presentation. Typically unusual for him, at least later in life 🙃
@philmurphy55846 күн бұрын
Brilliant 👏
@AngelinaCruz3572 ай бұрын
When Feynman says: h₁₂=h₁+h₂, and a₁₂=a₁+a₂; is he referring to the term of sequence?
@DrDeuteron13 күн бұрын
Timestamp? But prob. No, he’s summing (coherently) over amplitude from slits 1 and 2
@bgold2007Күн бұрын
A lot of famous quotes in the early parts
@darkfox7715 күн бұрын
This must be very rare. Hopefully you have an entire vault of these. If so. What would it take to get them all published?
@zephyrandboreas22 сағат бұрын
These are Feynman's Cornell Messenger Lectures of 1964. A series of seven lectures. You will find them if you Google for them. They are each unique.
@Nuttymeemps8 сағат бұрын
I really appreciate him saying that no one understands quantum mechanics. I have tried and tried to get my head around it for a long time and can’t. I now realize I never will. It troubles me that reality is nothing more than probabilities and potentialities.
@shanejohns7901Сағат бұрын
At that SCALE, it is true. Thankfully, the macro world still operates in ways where logic applies. Photons and electrons are so small that reality at that scale simply behaves differently. Rather than be daunted by this 'feature' of the reality we find ourselves a part of, we've gone well beyond and are making quantum computers. Another example of weird photon behavior shows up in the polarization. You can arrange two pieces of polarized plastic in such a way that their combination doesn't allow any light to pass through. Simple enough to explain with normal logic. But adding a third sheet of plastic, between those two, causes light to come through? That doesn't make sense at all. But it's what happens. Photons and Electrons are the kind of strange that quarks and positrons are, and they belong to that scale of 'things'.
@tarsembansal57525 жыл бұрын
Beautiful task
@brunobucciotti7198 Жыл бұрын
Chad Feynman dropping the H-bomb near the end of the lecture, basically mid cold war
@scottmatthews10397 сағат бұрын
Hard to get through this; just keep seeing/hearing Ed Norton from Honeymooners…
@kingdomofcapybaras68504 жыл бұрын
This is what genius looks like.
@JRexRegis3 жыл бұрын
He is pretty amazing. Describes such a complex, intricate and weird phenomenon and experiment in a way anyone can understand. I love watching lectures like this, and I'm very sad that a lot of geniuses lived before audio and video could be recorded.
@kingdomofcapybaras68503 жыл бұрын
Yes. It's one thing to know complex information. It's another thing entirely to communicate that knowledge effectively to others. He's a born teacher.
@KenTheoriaApophasis3 жыл бұрын
Feynman was a fool
@twonumber222 күн бұрын
@@KenTheoriaApophasis That's the single dumbest thing I've ever heard.
@paulgardiner433621 сағат бұрын
"After noise reduction"! How about the aspect ratio? Yes, it doesn't impinge on the physics, but - just - why not?
@AaronBrand17 сағат бұрын
When and where was this originally recorded?
@prof_fisher8 сағат бұрын
I believe this was recorded as part of his Messenger Lectures at Cornell, later published as "The Character of Physical Law."
@andywong2135Күн бұрын
@32:58 "...Light is scattered by electrons..." really ? I've never studied this, would anyone help elaborate that ?
@LeeGeeКүн бұрын
I guess he made a mistake and no-one noticed
@zephyrandboreas12 сағат бұрын
Yes. Light is scattered by the electrons. I am not a physicist, but as a biologist that is a phenomenon that is used in biology to study the structure of biomolecules.
@aaronkaw48572 күн бұрын
His centre of mass is in an unstable equilibrium.
@EricPham-gr8pg4 күн бұрын
The universe maybe like grid points and field force open like zooming by magnifying so we see light hidden beneath and that why our thinking all sharing equally except those are toothed or cursed by sound
@AngelinaCruz3572 ай бұрын
Sounds make different waves of vibration.
@werkzeugmann62243 күн бұрын
I was hoping we'd see the cat?
@johnhausmann23912 күн бұрын
Hi explanation of hidden variables at the end was not very good. He'd have benefited greatly from Bell's ideas.
@LeeGeeКүн бұрын
That's why no-one remembers him
@user-bj8js3mt3i15 күн бұрын
Turn song on radio, and check under hood for sound vibrations through the chassis check the next pickup on the radio stations until you can hear the radio
@aaronkaw48572 күн бұрын
Did he just explain that simultaneity doesn't objectively exist?
@dickrichard6262 күн бұрын
Well, it is an abstraction. Things do objectively happen simultaneously, but there is no real thing that is "simultaneity"
@dickrichard6262 күн бұрын
That and really if you set an experiment up with a hypothetical extremely precise timer that measures extremely small fractions of milliseconds, you'd find that most things apearing to happen simultaneously are actually not truly perfectly in sync and the probability for 2 things to occur at the same time is extremely low.
@stephenbrough81323 жыл бұрын
The noise reduction seems to have spoiled the sound so much, listening through normal speakers, I couldn;t listen to more than about 20 seconds .. I jumped ahead hoping it would improve. Having dead silence when he's not speaking makes it sound unnatural .. perhaps there's a slightly less intrusive setting ... I didn't realise there was a noise problem on the feynman lectures anyway - I've listened to them many times before without issue, but perhaps this one sounds even worse without NR. Sorry, just saying - it kinda hurts my ears a bit - a bit harsh
@bariswheel Жыл бұрын
Indeed, noise reduction does strange things to the audio, makes it sound unnatural and repels us from it. It's a classic bug where the engineering team fails to weigh in the nuance features that makes it human (the breathing in the voice in text to speech on ios for example)
@jelleoving9825 күн бұрын
i think its fins
@tonypalmeri72215 күн бұрын
I wonder if AI could clean-up the audio, better that other noise-reduction techniques.
@tonymason86062 күн бұрын
I hope it could clean up the video too. Making it a lot more sharp.
@NehemiahWendell-u1y16 сағат бұрын
Williams Richard Walker Helen Jackson Anthony
@ClareBoyd-f8cКүн бұрын
Taylor Ruth Walker Brenda Thompson Timothy
@shanejohns7901Сағат бұрын
So 'comes in lumps' is just another way of saying they're 'discrete'. I guess he wouldn't be Feynman if he just said they were discrete, and been done with it. Perhaps he believed that it'll be remembered better if he says it like that, rather than using the word 'discrete'. Both Feynman and Krauss were sexually predatory. Not a good look for the profession.
@antoinebachmann62534 күн бұрын
terrible audio
@aragorn27302 күн бұрын
If thats what you have to say about it, i am happy you dont complain about it not having color.
@AngelinaCruz3572 ай бұрын
10:21 The holes are not even leveled!
@steviejd580310 күн бұрын
Please stand still.....
@user-bj8js3mt3i15 күн бұрын
Uses the human as a tool for computing. AI with human intelligence.
@budspencer247917 күн бұрын
never trust a theoretical physician too much, they leave out what dont fit into their calculation. (please dont get angry, is just a joke).
@kevintruman99815 күн бұрын
There's no theoretical physician though 😂😅
@EsatBargan5 күн бұрын
Miller Matthew Clark Nancy Anderson Jessica
@ericreiter14 ай бұрын
Minute 25, "You never get two clicks at the same time." I show how that is wrong and what they did wrong to make them think they were right. Find me and my website.
@poopnach4 ай бұрын
0:54 _see me after class_
@golfer56362 ай бұрын
You’re drunk
@user-bj8js3mt3i15 күн бұрын
No, though a garden walking pretty in the gardens at night she shies like a nighten gail.
@abdellahkhodja96362 жыл бұрын
hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
@laynemccormic91023 жыл бұрын
Audience cringe
@jelleoving9825 күн бұрын
you have an audio freely available to you from one of the greatest minds of the 20th century, which somebody managed to preserve and augment to make the sound distinguisable, so your far less advanced brain gets a change to grasp a most intriguing feature of nature, and you complain
@mrslave4115 күн бұрын
literally nonsense 😊
@walterbrownstone801710 ай бұрын
Comparing bullets to charged particles is just plain wrong. And this is the basis of the double slit. Garbage theory.
@nabilbensafi7 ай бұрын
What do you suggest ? I'm still trying to figure out what's so special about this experiment. Isn't observing particles the same thing as interacting with them, hence the change of their behavior ?
@walterbrownstone80177 ай бұрын
@@nabilbensafi This is the system. They push probability on you as if it was a law of physics. And you either take it or you fail the course. Basic electrostatics tells you every particle has an electric field. The field passes through both slits, causing the particle to deflect accordingly. But they make it sound like some miraculous thing. But in reality is just Maxwell's work.
@JohnSmith-if2qvАй бұрын
@@walterbrownstone8017 Always some idiot on the internet pretending to be smart. First of all, the Feynman Double Slit Experiment has actually been done and has been proven correct. So your assertion that it's garbage is already wrong. Then you claim that "every particle has an electric field." Are you really that stupid? I suppose neutrons don't exist and have never existed. But, to further my point, I was able to find a paper where they did a double slit experiment with neutrons and lo and behold it's still probabilistic. You're just wrong. Probably someone who failed quantum and is salty they failed. Paper in question: D.M. Greenberger and A. Yasin, "Simultaneous wave and particle knowledge in a neutron interferometer" The paper does give some interesting insight into how much we can know about a particles path but it is *still* inherently probabilistic. Shocker. Some rando who failed quantum isn't smarter than one of the most influential scientists of the 20th century
@JohnSmith-if2qvАй бұрын
@@walterbrownstone8017 You're just wrong. Firstly, neutrons are electrically neutral. That's why they're called neutrons. Secondly, you are implying that this experiment would not work with neutrons. This is also completely false. Here's a nice little paper you can read, although given it is obvious you failed quantum I don't know how much you'll understand. This is basic electrostatics. D.M. Greenberger and A. Yasin, "Simultaneous wave and particle knowledge in a neutron interferometer" Shocker. One of the most influential physicists of the 20th century is smarter than a some rando in the youtube comments who is salty about failing quantum.
@walterbrownstone8017Ай бұрын
@@JohnSmith-if2qv Firstly neutrons are emergent particles that are made from charged particles. Meaning they always have a presence in the field density of is local space. All particles with spin are emergent. Spin can only emerge from two charged particle fields interacting in the only why they know how, by spinning.
@Blessingdrop3 күн бұрын
J
@user-gj6cw6yc8s6 күн бұрын
😊 you're right as a spectator there is a lot of laughs and a lot of jokes outside the train tracks probably as you attend the parade It's not so funny to the security inside the train perhaps the president is inside ...😮 It's a little more serious for the security And he takes his job very seriously .. but I guess if you were holding over 200 tons of gold ...😊 Everything would be serious ..... Now you can hear the jokes from the people because of microphones .... And the insensibility ..... But yes some straight references may continue As the laughs and jokes could only get themselves an ice cream or go home 😊 Job gets f***** up around here It's not cool 😊 Because nobody likes the bleaching ... Nobody nothing licks to be bleached