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@donkulator there is a thing called матановая капча, literally “calculus captcha”. Russians use it on some tech and engineering-oriented websites.
Here's a translated version of an article about it: https://translated.turbopages.org/p...
(“Matan” here means calculus) -
@donkulator those who can realize a spreadsheet approach can solve it deserve to pass.
A fun fact about Yuri Gagarin's flight:
Before the flight, it was not yet known how the human psyche would behave in space, so a special protection was provided to prevent the first cosmonaut from trying to control the ship's flight or damage the equipment in a fit of madness. To enable manual control, he had to open a sealed envelope, inside which lay a sheet with a mathematical problem, the solution of which gave the code for unlocking the control panel.
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