you have a sphere mirrored on the inside, and you introduce light. could

[inlet]

this be an energy source? i know that mirrors are imperfect, and so the light would dissipate quickly. what if you also introduced a suspended crystal at the center of the sphere, such as a ruby, commonly used in lasers. would the fact that this occurs inside a sphere be far more efficient than a typical laser production using mirrors? could this be a reliable source of energy, or would it only be reliable for producing moderate heat and/or laser light?
also, i understand that there would be an issue with injecting light into the sphere. i imagine that could be addressed by building an intact sphere with chemicals within which could interact later upon manipulation of the sphere, creating light. no "injection" necessary.

 

[Mr. Science]

Unfortunately no. Let's just say for the purpose of the explanation that we manage to convert the light energy in the perfectly mirrored sphere into electrical energy.

We will be taking energy out of the sphere because energy can not be created or destroyed, merely transferred and so the sphere would run out of energy.

Unless you want it to be a similar to a battery, in which case, why not use a battery in the first place.

I've already mulled this idea around my head before, but GCSE physics teachers always get the last say.