is some kind of prism the the best way. I am no expert in this field so all help welcome!!
2006-07-12 06:54:38 · 4 answers · asked by want2know 2 in Science & Mathematics ➔ Physics
heat from the sun is in the form of light (photons or electromagnetic waves) of different "wavelengths" a glass prism (or optic fibers) is good for directing light via the use of critical angle in snells law,
im not certain but i dont think the glass prism is transpherent to all wavelengths causing your use of it (directing all wavelenths coming from the sun) not to be of 100% efficent.
another way to control the direction of the waves is use a mirror but most mirrors are not 100% reflective and as it is a sheet of glass the reflective material is usually placed on you have the same problem as the prism.
id say the most effective way to control the light is using a 100% reflective material that has a concave shape allowing u to concentrate the light where u wish.
or just use a magnifing glass and burn the ants :P
2006-07-12 08:14:51 · answer #1 · answered by kevin h 3 · 0⤊ 0⤋
Any mirrored surface will do. There are metalized coated mylar films which can be used in windows or cars to reflect heat back out, and they are very light
2006-07-12 14:00:30 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Bright colors reflect the sun while dark colors absorb the sun. That's why bright clothes are better in hotter climate or during the summer.
2006-07-12 13:58:54 · answer #3 · answered by tw0cl0n3m3 6 · 0⤊ 0⤋
The Mirror
2006-07-12 13:58:40 · answer #4 · answered by Dr M 5 · 0⤊ 0⤋