Microwaves were invented by accident while engineer Percy LeBaron Spencer was testing magnetrons.
Magnetrons are " vacuum tubes that produce microwave radiation and are used in radar systems," according to LiveScience. Spencer noticed that a chocolate bar in his pocket melted while he was testing them. He invented the microwave by building a metal box around them since microwaves can't pass through metal, and found that the result could heat food faster than ovens. He filed for a patent in 1945.
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Obstacles 4 year s ago
Well the first digital electronic computer was built by the British for code breaking https://en.wikipedia.org/wiki/Colossus_computer. ENIAC can be claim first if you define first general purpose computer....hey ho!
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Pretty 4 year s ago
#3 lol having to explain that iceboxes were filled with ice.
#10 An old choir director of mine lived next door to one of the guys who developed the earliest patents for home microwave ovens. They were approved and being marketed by the 70s, but he wouldn't have one in his house until the 90s because they still leaked too much radiation of some sort.
#10 An old choir director of mine lived next door to one of the guys who developed the earliest patents for home microwave ovens. They were approved and being marketed by the 70s, but he wouldn't have one in his house until the 90s because they still leaked too much radiation of some sort.
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Obstacles 4 year s ago
Edison gets way too much credit as usual. He didn't invent the light bulb he perfected it. What took him so long was that he didn't read through any of the work of previous scientists instead making their same mistakes over and over. I believe it was after Eastman came along that he got things organized and started making some actual progress.
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Place 4 year s ago
#14... false
#10 An old choir director of mine lived next door to one of the guys who developed the earliest patents for home microwave ovens. They were approved and being marketed by the 70s, but he wouldn't have one in his house until the 90s because they still leaked too much radiation of some sort.