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TIL Astronaut’s visors are covered in a thin layer of gold which reflects sunlight, therefore reducing glare

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xeG1 TIL that John Lennon beat his wife and emotionally abused his son.
YA8G TIL Lincoln Logs were invented by John Lloyd Wright, son of the famous architect Frank Lloyd Wright.
5YPbn TIL of Kelly, a dolphin whose trainers gave her fish for bringing them litter/dead gulls to clean her pool. She started hiding fish under a rock in her pool, then used fish to lure gulls which she brought to her trainers to get more fish. She taught her calf the strategy, who taught more calves.
OGZda TIL Ada Lovelace (1815-1852) is considered by many to be the first computer programmer and her method describing an algorithm to compute Bernoulli numbers has been called the world's first computer program
OG0Qa TIL that the longest running laboratory experiment in history, the Pitch Drop experiment, had its seventh drop fall in 1988. However, nobody witnessed it and its custodian, Professor John Mainstone, had stepped out to get a drink the moment the drop occurred.