Classical Mechanics | Lecture 6
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(November 1, 2011) Leonard Susskind discusses the some of the basic laws and ideas of modern physics. In this lecture, he focuses on the motion of objects. He starts with a general example of a wedge on a frictionless plane and uses it as the building block for more complicated theory. This course is the beginning of a six course sequence that explores the theoretical foundations of modern physics. Topics in the series include classical mechanics, quantum mechanics, theories of relativity, electromagnetism, cosmology, and black holes. Stanford University http://www.stanford.edu/ Stanford Continuing Studies http:/continuingstudies.stanford.edu/ Stanford University Channel on YouTube: http://www.youtube.com/stanford
Comments
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at about the last 2 min, why people laugh at "why neutrino can't go faster than the speed of light" ? Is there a western cultural background that I don't know? ( I'm Asian )
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Bon appetit, Leonarodo!
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why did he change coordinates from x to q?
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DON'T EAT WHILE TALKING YOU OLD FART!!!! Most disgusting moment @ 59:57.
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Very nice and smooth. I hope the rest go like this. Hamiltonians seem so much less complicated then them lagrangians.
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this man is in love with harmonic oscillators.
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lhh dis nigga said Herman 😂😂
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Hi all. Hope you have all enjoyed these lectures as much as I did. I was just wondering if anyone knows where I could find original lecture notes for this series? Much appreciated!!
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Is the first problem supposed to be that it is kept on the plane by a normal force?
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do you have to use the rectangular (x,y) components of velocity when you write down the kinetic energy?
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These are amazing lectures. Susskind's presentation is perfectly clear and perfectly paced, with the relaxed energy and humor of a big personality, but without the arrogance and implied intimidation that so often accompany it.
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At 1.30 there was a discussion on dimensions. q initially is the definition of a coordinate system and in my view the dimensions of this must be position as one of the students said. How does the dimension demonstrated by th professor relate to this?. Is the coordinate system selected in a special way to make this true? Perhaps another way to put it is how does one express this in terms of the coordinates geometrically.
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David King
would you send me the book of Classical Mechanics" by Herbert Goldstein as pdf file
I will be very thankful -
Is P_theta really conserved? I think the Lagrangian involves theta and P_theta is not a conserved quantity since V involves theta. Prof. Susskind just mistake T as T-V. Someone agree with me?
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Canonical momentum is essentially a definition of momentum given by the LaGarange equation. It is, by definition, the partial of the LaGarange with respect to the time derivative of the space coordinate (most recognizable as velocity). I recommend wrestling with the LeGendre transformation when you get the chance. Since the LaGarange, in general, is not always in a conservative field, the units tend to change when the cononical momentum is taken.
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excuse my possible ignorance but what exactly is canonical momentum? From the way he is using that term it sounds like momentum in a particular direction (like a component of momentum). and why wouldn't it always have the same units?
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This is fun, sort of. Susskind has a great sense of just how fast he can push without getting me totally confused and giving up. I feel like a greyhound chasing a mechanical rabbit. I never quite catch up, but I can get close enough to stay in the race if I keep running as fast as I can. (There's probably some Lagrangian to describe that kind of motion, but I don't even want to know it)
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Hi, sorry it took me so long to reply youtube inbox is messed up... If you pm me your e-mail I'll send it as soon as i can. Cheers ; )
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