a google search didnt reveal anything, so i'll ask it here.if the unit of light is a photon ( i think), and anything that emits light emits photons, does that not mean that photons are infinite, yet they expire far far in the future? do they just exist in anything that emits light, or exist everywhere?if i light a match anywhere, it emits light, but can i not conclude, on that observation, that photons exist everywhere?? can i not say that photons are infinite?
but if the light is infinitely sustained, the arent photons an infinite source?
There is no way to infinitely sustain light. It just isn't possible. And no, photons are not infinite either. Firstly, they alone do not emit or sustain light, and eventually they will break apart so that they no longer create visible light.
but if i burn something, or turn on a light, there is light that was never there because it was never there, it must exist everywhere possible for light to be created. it is just created,not collected. ( bad examples but same concept)
simplified, if light can be created where there is none, then would the light emitter carry photons? does the environment carry photons, do they exist everywhere?
Photons in visible light are a byproduct of the breaking down of atoms, which contain photons. In the example of lighting a match, what is taking place is the atoms are being heated to such a state that their energy is emitted as radiation, and some of that radiation falls into the spectrum which we can see, light.
But if you use an electric lamp? It produses light and I don't see a source of atoms to be broken.
By electric are you meaning an incandescent bulb? And yes, atoms are being heated. Incandescent bulbs operate by heating a filament which emits heat and light.
what about fluros or LED.. similar concept or are they different? and then how do you explain light traveling vast distances so quickly.. the way we define space as the whole wide area of space we define it how far light is reaching
Photons are made up of energy which can only be created or destroyed. Space expands faster thent he speed of light, so if im on the right track here the anwser to your question is no.
When an electron moves or orbits at a higher level, it has more energy. Electrons are an electromagnetic phenomena which appear to instantaneously create and destroy photons to gain/lose energy. Photon's are said to be the carriers of the electromagnetic force, just as neutrinos are carriers of the weak-interaction because they are the result of protons changing into neutrons and vice versa.
There doesn't appear to be a progressive state when an electron emits a photon and goes down an energy level, meaning that there isn't a selection process for a 'well' of photons inside the electron, but rather a spontaneous generation of photons. Note that this does not violate conservation of energy since energhy is just taking another form, not being created from nothing.
Photon's travel very fast because they have zero mass in their own frame of reference, yet they have a finite speed because light speed is dependant on the medium at which they travel in. Light travelling through glass is slower than light traveling through space, this is why refraction occurs when light travels between two mediums. Space itself is not a perfect vacuum because there are still hydrogen atoms sparsely spread throughout space. Quantum mechaincs also sets limits for how close space can be to being a perfect vacuum. Note that you cannot use the equation E=mc^2 in relation to light, since this is not the complete equation. Even with the complete equation, I suspect that this isn't sufficient to deal with the properties of light, and that you would have to delve into quantum mechanics for that.
