(April 3, 2014 at 2:04 pm)Alex K Wrote:(April 3, 2014 at 1:41 pm)max-greece Wrote: What happens when you switch on a light?
Where do the photons come from?
Did they exist before you switched on the light?
Photons are created when an electron changes its energy state but when you switch off the light and the electron falls back the photon isn't sucked back in.
In effect - the photon is created out of nothing.
I thank you.
There are different forms of energy, what you describe is merely the conversion from one type to another. In the presence of spacetime.
Except a photon isn't merely energy. It an elementary particle which carries energy proportional to the radiation frequency.
I'd give you a duality between energy and a particle if you like - but I don't think you can get away with just energy.
Kuusi palaa, ja on viimeinen kerta kun annan vaimoni laittaa jouluvalot!
