I had a thought the other day - following from general relativity, a photon experiences a gravitational red shift in frequency. Searching for a research project, I toyed with the idea of a chromodynamic red shift if a photon were to pass through a strong field. However, since the photon has no...
I'm familiar with Peltier, but that isn't related to semiconductors. Peltier uses junctions of copper and bismuth, I'm thinking of something that uses silicon or germanium.
Ok, so here's the basic idea. You have a refrigerator, with four walls each 6ft x 2ft x 4in. The walls are made out of copper(high thermal conductivity), with a silicon chip at the center. This chip is connected to an inductor and is essentially a L-C oscillating circuit. As the chip heats up...
As to the number of gamma rays generated, it must always be a multiple of two. This is because of conservation of momentum. If an electron-positron pair collides head on, the resulting products must have a momentum in the x-direction of 0(because they have the same mass, same velocity) and a...