› added 1 year ago

91

TIL the moon is moving away from Earth by about 1.5 inches (3.8 centimeters) every year

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via reddit.com

P5JL TIL there is only one species of cactus that can be found naturally occurring outside the Americas
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l7My1 TIL that Nikola Tesla, the inventor and engineer, had a photographic memory and could memorize entire books.
K9X9 TIL The NHL designed a puck with IR sensors in it to track it - that’s how they made it glow in the 90’s
4kaZa TIL that under the Invention Secrecy Act, the U.S. government can prevent certain patent applications from being disclosed if they deem the invention a threat to national security. Inventors can be prohibited from sharing or profiting from their own creations without even knowing why.