Microwaves

Essay specific features

 

Issue:

Science

 

Written by:

Elaine H

 

Date added:

June 1, 2015

 

Level:

University

 

Grade:

A

 

No of pages / words:

5 / 1368

 

Was viewed:

6926 times

 

Rating of current essay:

 
Essay content:

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 policemen employ to pinch speeding motorists, is what many of us now have in our kitchens. It's the same as what carries long distance phone calls and cablevision...
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It's the same as what carries long distance phone calls and cablevision. Hitler's army had its own version of radar, using radio waves. But the trouble with radio waves is that their long wavelength requires a large, cumbersome antenna to focus them into a narrow radar beam. The British showed that microwaves, with their short wavelength, could be focused ina narrow beam with an antenna many times smaller...
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