› added 2 years ago

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TIL that methanol (the fuel used in race cars), when on fire, has invisible flames and no smoke.

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e0E84 As the coronavirus pandemic continues, many people are developing new sleep patterns, which—in addition to stress about the virus—is altering their dreams
JYEZ8 TIL The pilot that dropped the Tsar Bomba nuclear bomb was given a 50% chance of survival that mission, given the speed and size of the blast and whether his plane could escape in time
GLR4 TIL of the largest calving event witnessed by man. A field of ice the size of lower Manhattan and taller than skyscrapers broke free from a glacier.
xVk1b TIL the Horn shark lays conical shaped eggs with a spiral flange running around the outside, which enables the female to wedge it into a crevice, making it difficult for predators to access.
VG1m TIL research suggests that one giant container ship can emit almost the same amount of cancer and asthma-causing chemicals as 50 million cars, while the top 15 largest container ships together may be emitting as much pollution as all 760 million cars on earth.