› added 11 years ago

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TIL in 1964, a high school student in San Diego stayed awake for eleven days, demonstrating that sleep deprivation has little effect, other than the mood changes associated with tiredness. He currently holds the scientifically documented record for the longest period a human has gone without sleep.

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9YA1X TIL that rainbow are actually in shape of a full circle. We just can't see the whole round because our surrounding land gets in the way. But if we stand in a higher altitude than our surrounding as well as the sun we can actually see the whole rainbow.
P1LjJ TIL: About Earth trojans. Two asteroids that share our orbit, leading us around the sun.
D10gr TIL that the Lioness does 90% of the hunting because the mail Lion is prone to having his testicles ripped off by vicious Hyenas.
ADDyl TIL in November 1783, when he was in Paris, Benjamin Franklin witnessed the flight of one of the first hot-air balloons. As the balloon soared into the air, a spectator asked Franklin what this new invention could be used for. Franklin responded by saying “What good is a new-born baby?”
1ajlV TIL that engineers from six New York City television stations died in the 9/11 attacks because the transmission facilities were in the building and they had to keep broadcasting despite the ongoing disaster. They kept the stations on the air until the towers' collapse.