› added 4 years ago

213

TIL that sperm don't actually swim, they corkscrew!

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Z8yOp TIL that the most common and annoying injury astronauts suffer during spacewalks is traumatic fingernail loss, due to the material and internal pressure of their gloves.
R5dOl TIL television broadcasters sped up tapes of I Love Lucy reruns in the 1970s while using a special hardware effects unit to alter the actors' voices to their normal pitch. This effectively made more space (around 3 minutes) to run advertisements, generating more revenue for the stations.
XErkD TIL actor Humphrey Bogart was an avid chess player, often playing on set between takes. During World War II, he played correspondence chess with members of the military posted overseas or in hospitals. The FBI intercepted this mail and thought he was sending secret codes to Europe.
XbY8 TIL giraffes only need 5 to 30 minutes of sleep in a 24-hour period.
KYKrR TIL that the largest destination for slaves during the Transatlantic Slave Trade was Brazil, with 38% of the roughly 10 million slaves trafficked being sent there.