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Опубликованно: 13.07.2004.
Язык: Английский
Уровень: Средняя школа
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  • Эссе 'Microwaves', 1.
Фрагмент работы

Microwaves
Technology: Microwaves
1.<Tab/>When did it developed?
It was during a radar-related research project around 1945 that Dr. Percy LeBaron Spencer, a self-taught engineer with the Raytheon Corporation developed the microwave.
2.<Tab/>Where did the technology come from?
Dr. Spencer fashioned a metal box with an opening into which he fed microwave power. The energy entering the box was unable to escape, thereby creating a higher dens…

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