7. 1940: ad­vanced radar sys­tems now: Microwave oven

Australian T3 - - TRAVEL -

A cav­ity mag­netron gen­er­ates high-power

pulses, har­ness­ing the in­ter­ac­tion of elec­trons and a mag­netic field. It al­lowed

for pre­cise radar dur­ing WWII. Af­ter the war, Percy Spencer put it to an­other use: in­vent­ing the Radarange microwave, which nuked the first of many TV din­ners.

from $99, har­veynor­man.com.au

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