Thread: Time Dilation
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Old 12-08-2008, 12:20 PM
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bojan
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No.
What I said was, photon is stopped by your retina, and it delivers all its energy to it. Some of this energy will be converted to heat (which may be re-radiated as thermal radiation a bit later), some of it will go to chemical reaction in the photosensors of your eye.. so you can see the light.

EDIT:
Of course, some photons (those which did not reach your retina to reveal their existence) are stopped by the lens, or by the molecules of air (especially if they are of such wavelength that they can be absorbed by water vapor or oxygen molecules present in the air). Some photons will be reflected from the lens.. But majority of them will reach your retina, then they will be stopped there and some of them will be detected - if my memory is right, 10% of photons from visible spectrum are detected by retina, producing the signal in visual nerve. The rest of them are simply converted into heat.

Last edited by bojan; 12-08-2008 at 01:27 PM.
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