If you’re reading this, you probably have a rough idea how a microwave oven works. But where does the vacuum tube fit in? And how can I use poorly melted cheese to determine the frequency of the microwave radiation used? All these answers, and more, await you. See the video, after the break.
Personally, what I appreciate about this video is that the host, Bill Hammack, goes further than simply saying “waves interacting with water make your food hot.” It not only explains that principle, but demonstrates it with the poorly melted cheese, and then goes on to show you how those waves are produced. Maybe it’s just because I’ve been reading The Way Things Work since childhood, but these kind of in-depth explanations of everyday items just make me swoon.
(via How To Geek)
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