What is the root source of Light ?

[pravdt]

What is the root source of "Light"?

I'm not talking about converted/transformed energy via external sources, i.e. Electricity or heat transformed to Light.
Whats the root source?
Energy itself?

 

[russ_watters]

Welcome to PF!

The universe started with a lot of energy: In the beginning, it was hot and dense. All energy that exists today, including light, is ultimately derived from that initial state.

 

[pravdt]

Welcome to PF!

The universe started with a lot of energy: In the beginning, it was hot and dense. All energy that exists today, including light, is ultimately derived from that initial state.

Thanks a lot. :)

 

[jedishrfu]

Here is one such theory of light:

http://en.wikipedia.org/wiki/Neutrino_theory_of_light

need to mention that it is not mainstream and mostly conjecture but curious non the less.

 

[sardar]

The root source of light is electromagnetic energy. This energy is emitted by particles called photons, which are the fundamental units of light. These photons are generated by various sources such as the sun, stars, and artificial light sources like light bulbs. The energy for these photons can come from a variety of sources, including electricity, heat, or chemical reactions. Ultimately, the root source of light is the conversion of one form of energy into electromagnetic energy.