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.