Awesome really. So there is radiation transfer from local heat, and convective heat due to heat and air transfer. If I get it right.
I like learning all this, as truly, I didn't get it before.
So the radiation is infra-red. Then microwave is?????????
Microwave energy and infra-red are cousins. Infra-red is a part of the light spectrum that includes infra-red, all the way to X-ray. Where infra-red is in the lower frequency of the spectrum, and produces photns that can be seen by some creatures, and by special instruments, visible light ranges from the colors of the rainbow (visible light), to higher frequencies that are again invisible to the human eye, starting at ultra-violet light, and up. The photons are both paticles, and contain energy that react with materials in accordance with their own specific frequency. Infra red light has little sustaining power. That is, it's energy is easily absorbed by matter and converted directly into heat energy. Ultra violet, on the other hand, maintains it's energy and penetrates things like skin, poking microscopic holes, thus damaging tissue. The damage is sensed by the skin as heat, though it isn't the same thing. Blood flows to the damaged area, turning it read. Chromosomes are damaged by the ultra violet radiation, and the nerves tell your brain that your skin hurts. you have a sunburn.
Microwave energy is a form of electro-magnetic energy that also moves as a wave. The frequency of the wave determines the length of the wave. Microwave energy doesnt' poke holes in things like ultra-violet light. Instead, it affects the molecules of matter, causing them to become excited, which creates friction between molecules, which creates heat. One myth about microwaves is that they penetrate matter and heat from the inside out. This is a wive's tale. The food in a microwave is heated from the outside in, but due to the focused beam, the energy isn't transmitted evenly to the food surface, creating hot spots. That's why most microwave ovens contain a turn-table, to move the food through the focal points of the microwave energy. Radio waves are the same kind of energy as produced by a microwave, as are the electro-magnetic waves produced by a radar. Lasers use light to transmit energy. Masers use Microwaves, as do radio and radar antennae, and as do the magnetron's that produce the microwaves in your microwave oven.
Infra-red is a kind of light. Microwaves are a kind of electro-magnetic energy. Both are radiated from some source and affect the things they come into contact with.
Nuclear radiation is more like light radiation than it is to microwave radiation. High energy particles are emitted by the radioactive elemental source that punch holes through your body, just like with X-rays, Gamma-rays, and ultra-violet radiation. But unlike ultra-violet, the particles have enough energy to pass completely through your body and do damage all the way through, causing radiation sickness. Radioactive substances can deposit minute amounts of themselves onto other things, and continue to cause damage. Microwaves, and infra red can't.
I need to go home now.
Seeeeeeya; Chief Longwind of the North