› added 6 years ago

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TIL Nazi physicists rejected Einstein's theory of relativity as "Jewish science"

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0w55j TIL that male cichlids have oval-shaped dots on their anal fins called egg-spots used to trick females who are carrying unfertilised eggs in their mouth to think they’ve dropped some. The female will then place her mouth to the anal fin and receive a load blown into her face.
N7Dd1 TIL Astronauts use white space suits in space as white reflects the solar radiation. However, while heading to space or coming back, they wear an orange space suit so that, if there's a malfunction and astronauts have to abandon ship, they need to be easy to spot for rescue crews.
ADXng TIL in ancient China, a huge war was sparked because of a board game gone wrong. The crown prince was arguing with his cousin, the son of a regional king, during a match of a game called Liubo, and when his cousin offended him, he threw the board at him. He died from the blow. His father revolted.
RE1 TIL YouTube acknowledges the first rickroll as an important event in its history
XExAQ TIL Alexander the Great once suffered an arrow wound that pierced his lung. He fought on as long as he could, but eventually collapsed on his shield. His army was able to protect him long enough to win the battle and to escape. They cut the arrow out of his chest and amazingly he fully recovered.