dunno pg. six
Richardm - Ho can one infinity be more than another? I'm not sure there is anyone who understands that.
bob - See. I told you guys, everything is too weird. Think about water. Or music. Or music underwater. What about that?
guangtou - If you are on a train travelling at the speed of light, and the speed of light is as fast as anything can go (according to relativity theory), and you walk from the back of the train to the front, doesn't that mean you're travelling faster than the speed of light?
Something tells me RichardM knows the answer to this one, and bob, who wants to know the answer, will loose sleep over it. As for me, I'm an idiot and don't really understand the question. Even though it's my question. Really confusing all this...
bob - Yes, but not by very much. Say, for example that you were on a really long train like the one that goes from Taipei to Gaoxiung, and when you started out in Taipei you were at the back of the train but walked towards the front on route. I imagine you would only save about five minutes on the trip actually (assuming of course you didn't stop in at Tainan and give TC a hard time - in which case the whole deal would be thrown all out of whack so lets just forget that idea) and since all the doors on the train open at the same time on arrival you'd just have to sit an wait anyway. It would probably be better to just sit a relax the whole trip.
About the music and water thing, I'm wondering if it would be possible to teach fish to dance and if so what steps would you start out with. Richard?
Richardm - Start with a watlz. Fish hate tapping. And then they are at a total loss with what to do with the banana.
Big Fluffy Matthew - guangtou wrote: If you are on a train travelling at the speed of light, and the speed of light is as fast as anything can go (according to relativity theory), and you walk from the back of the train to the front, doesn't that mean you're travelling faster than the speed of light?
No. When you measure your speed, what is it in relation to ? (That's why it's the theory of relativity)You are at walking speed in relation to the the train. When the train is going that fast, time slows down, and you're going faster, so it slows down even more. And speed=distance/time, so your speed is still less than the speed of light.
And don't forget that as your speed aproaches c, your mass approaches infinity, so it takes an infinite about of energy to go faster, which is why you can't go faster.
Richardm - I knew that.
guangtou - Thanks for that BFM. There's one more thing I know now that I didn't before. And so does bob. And this makes the whole thread kind of superfluous, 'cause now he knows something.
That's assuming of course, that BFM isn't lying. Then we'd be back where we started (i.e. with bob not knowing anything).
RichardM knew about the light speed thing without even being told about it. It's just great knowing he knows, you know?
bob - Big Fluffy Matthew wrote: ....as your speed aproaches c, your mass approaches infinity, so it takes an infinite about of energy to go faster, which is why you can't go faster.
I guess that's why light particles are so tiny huh?
bob - See. I told you guys, everything is too weird. Think about water. Or music. Or music underwater. What about that?
guangtou - If you are on a train travelling at the speed of light, and the speed of light is as fast as anything can go (according to relativity theory), and you walk from the back of the train to the front, doesn't that mean you're travelling faster than the speed of light?
Something tells me RichardM knows the answer to this one, and bob, who wants to know the answer, will loose sleep over it. As for me, I'm an idiot and don't really understand the question. Even though it's my question. Really confusing all this...
bob - Yes, but not by very much. Say, for example that you were on a really long train like the one that goes from Taipei to Gaoxiung, and when you started out in Taipei you were at the back of the train but walked towards the front on route. I imagine you would only save about five minutes on the trip actually (assuming of course you didn't stop in at Tainan and give TC a hard time - in which case the whole deal would be thrown all out of whack so lets just forget that idea) and since all the doors on the train open at the same time on arrival you'd just have to sit an wait anyway. It would probably be better to just sit a relax the whole trip.
About the music and water thing, I'm wondering if it would be possible to teach fish to dance and if so what steps would you start out with. Richard?
Richardm - Start with a watlz. Fish hate tapping. And then they are at a total loss with what to do with the banana.
Big Fluffy Matthew - guangtou wrote: If you are on a train travelling at the speed of light, and the speed of light is as fast as anything can go (according to relativity theory), and you walk from the back of the train to the front, doesn't that mean you're travelling faster than the speed of light?
No. When you measure your speed, what is it in relation to ? (That's why it's the theory of relativity)You are at walking speed in relation to the the train. When the train is going that fast, time slows down, and you're going faster, so it slows down even more. And speed=distance/time, so your speed is still less than the speed of light.
And don't forget that as your speed aproaches c, your mass approaches infinity, so it takes an infinite about of energy to go faster, which is why you can't go faster.
Richardm - I knew that.
guangtou - Thanks for that BFM. There's one more thing I know now that I didn't before. And so does bob. And this makes the whole thread kind of superfluous, 'cause now he knows something.
That's assuming of course, that BFM isn't lying. Then we'd be back where we started (i.e. with bob not knowing anything).
RichardM knew about the light speed thing without even being told about it. It's just great knowing he knows, you know?
bob - Big Fluffy Matthew wrote: ....as your speed aproaches c, your mass approaches infinity, so it takes an infinite about of energy to go faster, which is why you can't go faster.
I guess that's why light particles are so tiny huh?
posted by david at 9:07 AM
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