inventions

Is it true that razor blades sharpen themselves in pyramids?

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Is it true that when using a flexible straw, it is correct to hold it with the corrugated part downwards?

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Is it true that the QWERTY layout was invented to prevent adjacent keys from jamming on typewriters?

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Is it true that in the USA roller coasters are called Russian coasters?

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Is it true that the US has patented a drone for distributing fighting mosquitoes?

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Is it true that psychologist Wilhelm Reich was jailed for inventing an effective cure for cancer?

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Is it true that Henry Ford invented the assembly line?

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Is it true that the modern type of skates was invented by Tsar Peter I?

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Is it true that chips were invented thanks to multimillionaire Vanderbilt?

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Is it true that the modern paper clip was invented in Norway?

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Is it true that the inventor of sugar packets hanged himself after seeing them being opened incorrectly?

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Is it true that the new Russian device “Thor” can remotely suppress the coronavirus?

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