Lecture 1 | Modern Physics: Special Relativity (Stanford)
Lecture 1 of Leonard Susskind’s Modern Physics course concentrating on Special Relativity. Recorded April 14, 2008 at Stanford University. This Stanford Continuing Studies course is the third of a six-quarter sequence of classes exploring the essential theoretical foundations of modern physics. The topics covered in this course focus on classical mechanics. Leonard Susskind is the Felix Bloch Professor of Physics at Stanford University. Complete Playlist for the Course: www.youtube.com Stanford Continuing Studies: continuingstudies.stanford.edu About Leonard Susskind: www.stanford.edu Stanford University Channel on YouTube: www.youtube.com
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Tags: Classical Mechanics, Quarter Sequence, Theoretical Physics
@krennolls I think the paradox is solved by stating that the motion of the travelling twin is not always the same: he/she has? to slow down and move into the opposite direction at some point to get back to Earth.
Nice sharing, definitely a good explanation of special relativity theory.
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@krennolls it’s not that the time spent out flying around at a constant velocity that makes the twin any younger, it’s the? acceleration he requires to get to that velocity. That is why the twin who goes off to space is younger.
I hope the video will not go down after a while. It is good that people are sharing knowledge on internet.
The twin paradox problem left as an exercise yields Proper time for the moving twin which is Sqrt(1-v^2/c^2) times the proper time of the stationary twin.
But? motion is relative, so the converse should be the case.
I suppose this is the “paradox”.
How does one resolve this paradox?
It is known that fast (elementary) particles live longer than slow particles!
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@cubeloveme33? Strang* lol always ***** that one up.
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@cubeloveme33 I do not know how far you get in AP calc, but that may be enough for awhile with special relativity. Statistics wouldn’t really hurt either.
On academic earth, this course includes general relativity, and quantum mechanics. I would recommend learning differential equations? and linear algebra before going into those or you will run into trouble. Strand’s course in linear algebra is excellent, but you will also need to learn inner product spaces for QM.
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@tnguyen318 The ball doesn’t hit the back of the car because it too, is traveling at the same speed as the car. The laws of physics apply to any inertial reference frame. An inertial reference frame? is one where it is not accelerating. Since the car is traveling at a constant speed, the laws of physics can describe the ball as if you were not in the car.
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Has anybody? been able to explain or write about the Laws of Physics regarding a ball tossed in the air while sitting inside your car? Why doesn’t it hit the back windshield when a car is traveling?
I used to be a physics major….then I took? an arrow to the knee
Might be better to add “Classical Field? Theory” to the title.
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ahhhhh that guy who always asks questions is in nearly? all susskin’s videos…hes sooo annoying!
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@rybotext There we go, but I was talking about theoretical physics, and you were looking at? wroung comment.
And yes the world will end.
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@BeepimajeepBeep ah, ok. People with astrophysics degrees have zero percent UNemployment, my sentence had a double negative (no one is unemployed). The Wall Street Journal published on this recently. The math involved in astrophysics is also useful for banking and consulting, which are high paying entry level jobs. As for referring to your comment, I was making? fun of you for saying that the world was going to end, because that has no basis in fact.
@rybotext I didn’t realize I was bullying anyone? I was just stating that theretical physics was a horrible field for basic degrees.
My last sentence was, “If you manage to get a PhD in physics then you could make a job out of it.”
Don’t see how that was? bullying? You are going to have to explain your comment, I am very dyslexic, and your comment was very poorly written.
@BeepimajeepBeep try reading my comment again… sloooooowly. Sorry I usually don’t like to denigrate people, but since you were bullying? a teenager interested in this wonderful topic I felt compelled.
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@rybotext I don’t get what you just said? You say 0% chance for job, then you say most? useful degree, and then refer to one of my comments? I am confused.
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@BeepimajeepBeep? If you had a degree in astrophysics in 2010, your chance of unemployment was… 0%. One of the most useful degrees you could ever get, so speak for yourself, oh, wait, your last sentence already did.
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@cubeloveme33
You should have a solid background on Newton Mechanics first,
I recommend Daniel Kleppner’s Introduction to Mechanics
for problem set I highly recommend Morin’s Introduction to Classical Mechanics
both of them? has special relativity.
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@cubeloveme33 The challange in this first lecture is not the math, he only used algebra and trig. However, you cannot learn physics from simply watching these lectures, you need to be working problems.? So if you have already done some problems these lectures are great supplement.
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@cubeloveme33
You should watch these videos after teaching yourself a little calculus, but you should start at the beginning of th series? of lectures. Check out Calculus Made Easy.
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@BeepimajeepBeep i’d really rather become a writer then go into physics, but? you know, whatever happens happens ^_^
@ChelSkye1996 I am just kidding, was just giving you advice from? what I have seen. If you manage to get a PhD in physics then you could make a job out of it.
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@BeepimajeepBeep i’m not majoring in anything i’m only? in 9th grade.
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@ChelSkye1996 Ok then, if you do decde to switch your major, you’ll need to get permission from me? first. ok?
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@BeepimajeepBeep I said i physics intrestes me, i didn’t say i was going to major in it. I have no intention? of doing that.