Damburger

2004-Nov-26, 12:02 PM

From another thread:

Damburger wrote:

If you could run fast enough for lorentz contraction to make a 5 foot surfboard look 4 foot long, why would you need to take a bus? Eh?

To win 2 poiints on Mind Games, obviously

(and it wouldn't "look" 4 foot long, to the bus driver it would "be" 4 foot long)

Not sure if I understand that question. What is the difference between the board 'looking' only 4 foot long and it 'being' only 4 foot long if it is only so from the perspective of the driver?

Surely all he can know about the board is what he can measure about it, so is there an appreciable difference between lorentz contraction merely altering his measurements, and it altering the 'actual' length of the board in his perceptual universe

:confused:

Damburger wrote:

If you could run fast enough for lorentz contraction to make a 5 foot surfboard look 4 foot long, why would you need to take a bus? Eh?

To win 2 poiints on Mind Games, obviously

(and it wouldn't "look" 4 foot long, to the bus driver it would "be" 4 foot long)

Not sure if I understand that question. What is the difference between the board 'looking' only 4 foot long and it 'being' only 4 foot long if it is only so from the perspective of the driver?

Surely all he can know about the board is what he can measure about it, so is there an appreciable difference between lorentz contraction merely altering his measurements, and it altering the 'actual' length of the board in his perceptual universe

:confused: