Reader [Eric Mockler] brought Louis “Lebel” Wichinsky to our attention, a colorful inventor he ran into some years back in the Borscht Belt of Upstate New York. Described as a Mel Brooks doppelgänger, Lebel was born the son of a baker in Hurleyville NY. During WW2 he served in England where he lodged with two brothers who also owned a bakery. When his British friends suggested he should build a bagel machine because “you Yanks can do anything”, he accepted their challenge and began working on a design. Despite taking a detour through Israel as an aircraft mechanic on his journey home, he finally succeeded in 1964 after 20-some years of tinkering. A patent followed in 1968, despite discovering that someone else had independently invented similar device.
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Hydrophone
Chances are you’ve never wondered what your goldfish is trying to say, but if you have (or if you just want a project), check out this DIY hydrophone.
You will need a computer microphone, vegetable oil, plastic wrap, scissors, solder, and a small unused plastic bottle. Solder the mic capsule to an appropriate length of cable and test. The entire assembly can then be submerged in vegetable oil inside a plastic bottle. Yes, vegetable oil. Seal the bottle and you’re done.