Stall said:
Uh, he's kind of right. It's a bit of a simplification, but he's right...
http://en.wikipedia.org/wiki/Aurora_%28astronomy%29
Auroras result from emissions of photons in the Earth's upper atmosphere, above 80 km (50 miles), from ionized nitrogen atoms regaining an electron, and oxygen and nitrogen atoms returning from an excited state to ground state. They are ionized or excited by the collision of solar wind and magnetospheric particles being funneled down and accelerated along the Earth's magnetic field lines; excitation energy is lost by the emission of a photon of light, or by collision with another atom or molecule:
I think you misunderstand something there.
The solar wind consists of particles, not photons, though emitted by the sun. These particles are relatively slow, taking weeks to reach us (compared to about 8 min. for light) and are ionized so they can get caught in the magnetosphere.
The "emission of photons" only happens up there at the poles where the charged particles give off photons. I think I won't get into detail here, but it is the solar particles that get bent and then emitt light related to the kind of elemental atom they are.
Anyway, I had this math/physics teacher once that had no idea what she was talking about most of the time, that managed to almost electrocute herself in an experiment and was so stupid people would just get their tests back, correct them and tell her she made a mistake there.
I kid you not, at times there were ten people at her desk
at the same time with the same stuff. All of them got more points/better grades out of it...