Microwave oven and cooking

Fletcher

Not the waves, but the cooking device. I am curious how the radiation is generated, and why it stays inside the microwave (the outside doesn't get hot).

ranger

The latter part of your question was discussed here:
http://www.physicsforums.com/showthread.php?t=148483

The radiation is generated by something called a magnetron. This produces high frequency EM waves.
http://hyperphysics.phy-astr.gsu.edu...magnetron.html

Fletcher

Thanks; just what I was looking for.