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TIL the international "A-series" of paper sizes is based on the square root of 2, so folding a sheet in half along the long edge will always result in the exact same proportions.

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v1g7R Today I learned that Canada is the slightest bit larger than the U.S.
rR1Ae TIL a 2011 study showed that a group of 4 year olds had a temporary lapse in cognitive function after watching 9 minutes of SpongeBob
4yaw TIL there is a superstition in knitting called The Sweater Curse, which implies that knitting one’s significant other a sweater will result in a breakup.
yVMNJ TIL wasps help prevent the destruction of $417 billion worth of crops from insect pests every year. This is higher than the annual value of insect pollination at $250 billion per year.
jnj TIL that as a boy, Michael Bay attached some firecrackers to a toy train and filmed the ensuing fiery disaster with his mother’s 8mm camera.