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TIL Outdoor temperature can be determined by counting the chirps made by crickets. To convert chirps to Fahrenheit, count number of chirps in 14 seconds then add 40 to get temperature. The formula endorsed by The Old Farmer’s Almanac.

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v174K TIL about Mauro Prosperi who was lost in the Sahara. To avoid agonizing death from starvation and to save his wife from legal red tape, he slashed his wrists with a knife. However, due to his severe dehydration, his blood had clotted around the cuts. He reached a nomad tribe a few days later.
5xVQ TIL the “earthy” smell accompanied by rain comes from an organic compound produced by Actinobacteria found in soil
woAOM TIL Scientists have demonstrated that "Mimosa pudica" plants not only learn from experience—they also remember what they have learnt over extended periods of time.
N7BYQ TIL There is a monument in Kyoto Japan called the Ear Mound. It consists of Ears and Noses of Chinese and Koreans killed by the Japanese in the late 1500's. Its estimated there are 38,000 Korean noses in this Ear Mound memorial.
Oo4V7 TIL the pages of Finland's passport make a flipbook of a moose walking