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TIL that hydrangeas are nature's pH meters

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LyeZ TIL that in order to highlight the dangers of using a phone while driving, Belgian road safety experts told a group of learner drivers they must avoid obstacles whilst texting in order to get their licence
nWMP TIL that a set of simple algorithms can give rise to amazingly complex patterns that are able to transform, breed, travel, and create. It’s Conway’s Game of Life, and in principle it is the same way organic molecules work together to create the patterns that are life.
AP4 TIL the actual normal human body temperature is 97.9 °F, not 98.6 °F (as is commonly cited), because someone rounded before converting their units.
690Nm TIL the fun fact of “Your body has around 100,000 km of capillaries alone, the tiniest of your blood vessels, with a surface area of around 1000 square meters." Is not correct. The real value is closer to 9000 and 19,000 km.
wol8E TIL: Canadian Elizabeth Bigley, posed as Cassie Chadwick and defrauded millions from American banks by pretending to be an heiress of Andrew Carnegie. Historians refer to her heist as one of the greatest in history as she did it when women were not allowed to get loans or have a voice in society.