› added 7 years ago

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TIL about the Great Filter, a theory that suggests the reason we haen't found life in space is because they don't pass through a part of their evolution known as the Great Filter, which wipes out the species. Worse, humans won't know if we pass through the filter until it'd be too late to save us.

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via reddit.com

grVJD TIL that an increase in the profitability of growing lemons after they were found to prevent scurvy led to the creation of the Sicilian mafia in the 1870s.
MXQ7 TIL While campaigning for a third term, Teddy Roosevelt was shot and instead of treating the wound he delivered a speech with a bullet hole in his chest.
OoKe1 Today I learned that the Germanic peoples, particularly the Vikings, often buried their dead in ships or boats. The largest discovered Viking ship grave is over 1000 years old and 65 feet long.
wLR18 TIL that there are no horror movies in China. They don't have a rating system so "you must make movies that a five year old can watch without feeling scared."
a7No TIL emotional crying is the result of very high levels of stress hormones building up in your body. Crying releases these hormones, resulting in feeling of relaxation and security.