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Essay Archive - Microwaves
Microwaves
You might remember the heroic role that newly-invented radar
played in the Second World War. People hailed it then as "Our Miracle
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 it.
Such was the beginning of microwave cooking. The very same energy that
warned the British of the German Luftwaffe invasion and that polic....
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