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Microwaves
Part 1 of Paper
.... hailed it then as "Our Miracle
Ally".
But even in its earliest years, as it was helping win the war, radar
proved to be more than an expert enemy locator. Radar technicians,
doodling away in their idle moments, found that they could focus a radar
beam on a marshmallow and toast it. They also popped popcorn with i.... Part 2 of Paper
....rrow beam, is one reason why they can be used in
cooking. You can produce a high-powered microwave beam in a small oven,
but you can't do the same with radio waves, which are simply too long.
Microwaves and their Use
The idea of cooking with radiation may seem like a fairly new one, but in
fact it reaches back thousands of years. Ever since mastering fire, man
has cooked with infrared radiation, a close kin of the microwave.
Infrared rays are what give you that warm glow when you put y.... |
| Number of words: 1380 - Approximate pages: 6 |
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