How do microwave ovens work?

microwaves heat and cook food by exposing it to microwave radiation in the electromagnetic spectrum. This causes the molecules in the food to rotate and produce thermal energy

How do they get the non stick Teflon to stick to the frying pan?

Ooo ooo, Mr. Kotter, I know, I know!
When i worked at the microprocessor company Intel, we worked with Teflon. Slipery stuff, but that is Duponts name for the stuff. Its chemical name is polytetrafluoroethylene. Yes i haf to look it up. Lol. It is a chemical composition based on the florine molecule. So yes in its relaxed and processes state is like an oiled up pearl. So you have to hit what ever want "tefloned" with superbhigh voltage plasma energy. We called it etching. Once the surface is preped you must process the teflon or build it, heat it to a high temp 800degrees F. Then under high presure press the mixture onto the etched surface.
Then viola! You have a frying pan, an gun barrel, or a heat shield.

Ok, my turn.... hummmm. What is the formula 3.14567353828292229abcdefg used for? Comonly known as pie?

Paging Sheldon Cooper...Sheldon Cooper, you are needed in this thread. LOL

What is quantum theory and how is it used?