Richard Feynman - Law of Gravitation - An Example of Physical Law part6

[bennemann]

I watched the previous 5 parts just to finally get to the part where he would discuss what gravity is made of, what actually causes stuff to attract... then he says he'll discuss it in another lecture -.- FFFFUUUU....

[AndrewTennessee]

@bennemann "Gravity" IS the attraction- masses attract each other, or gravitational pull, (as he just said) with a force that is inversely proportional( 0^-1) to the mass and distance between them... formula given a couple videos back I think. why? there is no answer to why, math and science only tell you how- Gravity is not stuff... unless you count gravitons, but then they have no mass soooo..... GOOD LUCK ON YOUR SCHOLASTIC ENDEAVORS!!! Feynnman is a great teacher. Get his books

[tequieromuerte]

I really enjoyed this. I'm no physicist, but I take an interest in this branch of science and liked how he didn't spend the entire lecture simply spouting equations- he explained the theories and practical implications of them in an accessible way, whilst showing he still had a sense of humour :) I don't consider myself a member of some "cult" because I enjoy learning new things.

[antimatterXXXIII]

All of these videos, and similar ones, always have such praise for Feynman - but what one never sees are questions. "What did he mean, I didn't understand that.." - no, because no one is really listening. If they were, they'd be full of questions because the lectures are choppy and disjointed and often quite bad. But it's the cult that matters now, not the science - the cult has become an end in itself. And if you really respect Feynman, you'd know he'd be disgusted with this state of things.

[calebp9503]

@antimatterXXXIII I kind of agree with you, but in another one of his lectures he talks about the way he presents stuff, so he does understand to some extent, that ordinary people would never be able to understand the full implications of the laws of nature if you just dropped them in their lap, so he presents them in choppy little chunks. So you gotta say that at least he tried to explain complicated things in simple terms. Just because the audience was dense isn't his fault.

[antimatterXXXIII]

He also mistakenly calls Einstein's work a "small correction". That's ridiculous - it's like saying the atom bomb is a "small improvement" over the bow and arrow. The point of view of general relativity is as vastly different, both philosophically and mathematically, from Newton as could be imagined. Yes, the numerical correction within the Solar System is small. But if he's going to talk about physical laws, he should be more clear on how they evolve.

[robertoppenheimer]

@antimatterXXXIII

You are a physicist? Yeah me too. Wiki has made all of us great physicists.

Get a life and get out of your mom's basement.

Feynman is a Nobel laureate and is considered a great by other REAL physicists.

[antimatterXXXIII]

He's discussing Dirac's "Large Numbers" hypothesis here, something Dirac worked on in the 1960s. Feynman is given credit for being a great lecturer but it simply isn't true. He's rambling as usual, failing to make proper attribution, saying things out of context. He relies on the force of his personality to be convincing, without at the same time making a really convincing argument.

[acid612]

@antimatterXXXIII I agree on your criticisms. He donwplays Einstein's enormous modifications and hides

what he learned from Dirac. Even path integrals were suggested by Dirac, and yet few people know legendary scientists like Dirac. However still I like Feynman's lectures. He does a great job in explaining the character of physical laws and highlighting important things. If I want to re-view my background on gravity, I probably go back to Feynman.

[acid612]

@antimatterXXXIII Compare this with, for example, the Leonard Susskind's lecture on gravity (here on youtube). Susskind's lecture is just horrible. He just writes down some facts on the board and does not like you to ask questions. rambling on very simple highschool stuff.

[dirac33]

@acid612 That's undeniably true - Feynman may have been an indifferent lecturer, but he was a great physicist - Susskind is just some poser with no credibility in any part.

[orochimarujes]

The music of the school bell is almost haunting.

[pterigion]

beautifully done

[Aristotelezz]

Great lecture!

[ConsciousAtoms]

Thanks for uploading! 

[rccaulfield]

Great vids!