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It depends on how well you want your brain to work

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P1QAG TIL Each year, NASA receives close to 1,000 astronaut appearance requests and there is a specific Astronaut Appearances Office in Houston, Texas. They can't receive honoraria since Federal regulations prevent astronauts from accepting gifts valued greater than $20
Bg4ML TIL 'George Washington said before his death "I will never set foot on English soil again" so when they erected a statue of him in London, they put US soil under his statue to honor his claim.'
OGVw4 TIL that Viagra works on cut flowers, doubling their shelf life while making them stand up straight
awW5Z TIL In 1964 British marines were given LSD and as result ended up laughing and lost all sense of urgency with one of the men joyfully climbing up a tree
1a1aV TIL Guitar amps can pick up radio signals without special equipment