2006-09-13 16:35:15 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Physics
There are many different wavelengths of what we call light. Visible light is only a small fraction. Light is made of what is called photons. Current science calls light both a particle, AND a wave, the only thing that can be both. It is so counter intuitive that many are now looking for another explanation of this phenomenon, based in quantum physics. Photon energy comes from changing matter to energy by exciting various molecules or gasses. The first law of thermodynamics state that matter can be converted to energy, and energy can be converted to matter. Light is a fascinating thing. 186,000 miles per second!
2006-09-13 16:45:56 · answer #1 · answered by The Oldest Man In The World 6 · 0⤊ 0⤋
Energy with reduced fat, I think. After you use it you don't feel as tired. But you have to use twice as much of the light energy to get the job done.
2006-09-13 23:41:01 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Light is an electromagnetic wave. That is, an electric and magnetic field that travels through space.
Pretty much everything is energy in some form, and light is no exception.
2006-09-13 23:38:56 · answer #3 · answered by genericman1998 5 · 0⤊ 0⤋
It's the sum of the photon energy contained in the total number of photons you're dealing with.
Doug
2006-09-13 23:39:00 · answer #4 · answered by doug_donaghue 7 · 0⤊ 0⤋