› added 10 years ago

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TIL that color-blindness in humans happens when a person has two visual processing cones instead of the usual three. There is a flipside, that there are people who have a condition known as Tetrachromacy, where someone has four cones, potentially allowing them to see more of the visible spectrum.

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Wko0A TIL: Jim Lovell, a carrier-based pilot facing instrument failure, used the luminescent wake of the aircraft carrier to locate the ship. He would later command the Apollo 13 mission.
04KA TIL Mary Tyler Moore once offered a restaurant $1000 for a 65 year-old lobster so she could return it to the wild. Rush Limbaugh then offered $2000 to eat the lobster. The restaurant denied both offers and kept the lobster as a mascot.
K9k4 TIL that McDonald’s highest-calorie item isn’t a burger at all, but the 1,150-calorie Big breakfast with hotcakes and large biscuit
9BB7 TIL that Kurt Vonnegut, one year before his death, said he would sue Pall Mall for false advertising. He had been smoking them since 12 or 14 years old and they had still not killed him, though they said they would on the packaging.
Z9dG TIL that in 1976, 3 guys hijacked a school bus filled with 27 kids and an adult, and buried them alive. All 3 were convicted and the children were saved.