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AtamaCardel (December 31, 1969 at 6:59 pm)
I think you got the time dilation backwards, the faster you go the more that time slows down for you. So something like a 10 year trip at near light speed for you would be maybe 26000 years for everyone moving at non relativistic speeds.
Roelandvinken (December 31, 1969 at 6:59 pm)
Great lecture,,, only youtube stops downloading half way everytime :(
Karmakameleeon (December 31, 1969 at 6:59 pm)
wow i didnt know that my sarcasm would be so negatively received...thanks for clarifying prosecutecheney and running....
corriendo (December 31, 1969 at 6:59 pm)
i go to uc berkeley, and i can tell you that not all classes are like this. like ProsecuteCheneyEtAl said, this is a course for non-physics people just to give them a non-math background in physics and how it relates to everyday life. note the name of the course: physics for future presidents (not physicists or scientists or anything like that).some college courses are pretty easy though.
yoursdhruly (December 31, 1969 at 6:59 pm)
Incredible series of lectures! Thank you UCB!
ProsecuteCheneyEtAl (December 31, 1969 at 6:59 pm)
If you move away from home at the speed of light you will see your home not move at all. That's the point.Stop thinking about time for a minute. As you accelerate towards the speed of light it takes longer and longer for light to reach you. So the whole outside world seems to slow down as you go faster.As you get very close to the speed of light your home will become completely frozen. Why? Because light can't reach you anymore. So what you see is the last light that hit you. Forever.
Mutske161 (December 31, 1969 at 6:59 pm)
For the perspective of light we move at the speed of light calvinhobbesliker..... I'ff u move with the lightspeed away from home,then u will see your home move away from u with the same speed u move.And with constant speed and no other reference u can not tell what or who is moving. ;)Thats a law Einstein gave us.U can do it with gravitie also..
ProsecuteCheneyEtAl (December 31, 1969 at 6:59 pm)
I think you're missing a basic point: time is relative to velocity. So if I am going a zillion miles an hour time will be going the normal rate for me, but it will be going slower for everything slower to me.So, if you were travelling at the speed of light, time would be going the normal speed for you and stopped for everybody else not going at the speed of light.The term for "everthing going at the same velocity" is "inertial frame of reference."(continued below)
ProsecuteCheneyEtAl (December 31, 1969 at 6:59 pm)
I think its a course for people who don't know much physics and don't plan on studying it, just to get a very basic knowledge. "Physics for poets" or something like that. Notice there is not math.
Karmakameleeon (December 31, 1969 at 6:59 pm)
man i kno... college must be easy!
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