zuz
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If light travels in a wave, couldn't we "speed it up" by making it travel in a straight line?
The waves are variations in the field vectors, not wiggles in the position. It travels in a straight line alreadyzuz said:If light travels in a wave, couldn't we "speed it up" by making it travel in a straight line?
I don't know. that's why I'm asking you. It seems like a fundamental question to me. Why can't we/any alien race do it?russ_watters said:Can you do that with sound, or any wave? Sorry, but the idea doesn't really make sense (and light isn't really a wave anyway).
See post 3zuz said:Why can't we/any alien race do it?
Only the electric and the magnetic fields oscillate either side of zero. The energy in the wave already travels in a straight line that is called the Poynting vector.zuz said:If light travels in a wave, couldn't we "speed it up" by making it travel in a straight line?
zuz said:that's why I'm asking you.
The distance along a sine wave depends on the frequency of the wave (a fact you should recognise, since a very low frequency wave is very near the straight line you want), so if your idea wasn't based on a misconception of what a light wave is (see #3 and #6) light speed would depend on frequency under all circumstances. That is not the case in vacuum - which is enough to tell you that your mental model of light is wrong.zuz said:If light travels in a wave, couldn't we "speed it up" by making it travel in a straight line?
If you straighten out a transverse wave, then you have no wave, and thus no light.zuz said:If light travels in a wave, couldn't we "speed it up" by making it travel in a straight line?
A.T. said:If you straighten out a transverse wave