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Science Note: Microwave Ovens [1]
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Date: 2022-07-28
They are cool, a thousand watts of radio frequency power for under $100 or free on the side walk as I prefer.
When you “nuke” metal, its just like when radio waves hit an antenna, they induce an electric current, only its a million times more powerful.
You can see this with your own pervy nekkid eyes. Take 3” of wire and bend it into a circle with the ends almost touching. A stream of sparks jumps the gap when you 'wave it. A grape split almost in half will also spark and a small fluorescent tube will give you that Simpsons green plutonium glow. A lit cigarette will spew orange balls of plasma with an evil buzzing sound.
The above never hurt my oven (I did it for years, whilst the jocks were dating!), but if you put a 2 liter capped bottle of water in it and use a loooong extension cord, it will literally blow it up.
In the pic up top, the finny thing my fingers pointing at is a magnetron, a vacuum tube invented nearly 100 years ago in Britain for radar, partially responsible for victory in ww eleven. The oven was invented right after when a chocolatl (chocolate is one of very few Nauhatl loan words in English and that is its original form) bar in a radar engineers pocket melted. Its original name was Radar Range.
Now, the part that will really creep the meat, make the flesh crawl among the microwave paranoid:
That square funnel thing my thumb is pointing at is a feed horn I made of tape and aluminum flashing. It allows the microwaves out into the environment, eager to party, and forms them into a directional “death ray”. Ooh, I don't like the sound of that “directional”.
You shouldn't try this one lest you be brave at heart and experienced with high voltage safety. For there, death awaits you, with great, big nasty pointy teeth!
You can cook stuff in front of it, kinda like a microwave bbq, shoot down your pervy neighbors peeping Tom drone, kill your grass, or, more constructively, warm your hands in the beam. In medicine, its called “diathermy” and costs you $64K. It feels like holding your hands out to a campfire.
Behold the Power of Science in the grubby hands of the Proletariat!
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