If we cant see the fourth dimension of objects because of reduction caused by projection into the third dimension, does that have anything to do with why you cant see the light of a lazer until it is projected onto an object in our 3 d world?
2007-12-09 09:14:50 · 4 answers · asked by Johnny Tostado 2 in Science & Mathematics ➔ Physics
Seeing requires light to enter the eye, usually after reflecting off the surface of the object you are seeing. Since the laser beam travels in only one direction, to see it directly, that direction would have to be from the laser aperture to your eye. Since lasers are very bright, I wouldn't recommend trying this; it might cause retina damage. Other than that, light would have to reflect off of something for you to see the reflected light.
According precise measurements, all the beam energy can be accounted for within our three spatial (plus one temporal) dimensions. Being in a hypothetical fourth spatial dimension would not let you see sources in the regular three. If you plan on traveling into the fourth dimension, therefore, I would recommend bringing a flashlight :-)
2007-12-09 09:21:53 · answer #1 · answered by Dr. R 7 · 0⤊ 0⤋
What is the fourth dimension supposed to be? Did you just make it up or are you referring to Buck Rogers movies?
Laser light, like any other light, does not scatter enough on the vacuum (yes, it does scatter, just not much) to be visible from the side. So you got to put a reflector in its way to scatter it into the observer's direction. This has nothing to do with higher dimension.
2007-12-09 09:23:08 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I doubt anyone can answer this, because as far the the record goes, no man has ever taken a peak in the 4th dimension before.
2007-12-09 09:18:06 · answer #3 · answered by Acorns 3 · 0⤊ 0⤋
Military Grade Tactical Flashlight : http://FlashLight.uzaev.com/?GjLt
2016-07-11 00:10:50 · answer #4 · answered by Anonymous · 0⤊ 0⤋