If you are driving at the speed of light, would your headlights work?
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M$6 Answers
1. The rules of physics have to work in all frames of references-moving or at rest, as long as the moving frames are not accelerating. Things have to work as usual.
2. The speed of light in a vacuum is a constant.
So, the lights from your headlights have to go at light speed with respect to any reference frame. The light will go speeding forth at its constant speed, hit objects in front of you, and bounce back to your eyes. All objects will be coming toward you at near-light speed so the reflected light will be shifted toward the high frequencies, like the high pitch of an approaching train's whistle. The light frequencies go from visible to ultraviolet or beyond. Things outside your window would look strange, if you could see those frequencies: length-shrunk images, distorted by aberration and bizarre time effects.
April Holladay, science correspondent, June 6, 2001
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M$If you meant near the speed of light, then yes, they definitely would work. From your perspective, though, everything you are moving toward would be foreshortened along the axis of travel. Likewise, anything you travel away from would appear lengthened along that axis. The incoming light from object in front of you would be increased in frequency, or blue-shifted. Those you travel away from would be similarly red-shifted.
Dr. Hugh B. Haskell, circa 1985
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M$
You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$
You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$
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M$my brain
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