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TIL when an underwater bubble is popped with a soundwave, it produces light. After 70 years of trying, scientists still can’t explain it

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W1go TIL that only 1/3 of the people in America really supported the American Revolution in 1776
YNwW TIL the 18th century religious group called the Shakers have only 2 remaining members. Unrelated fact, a core belief is that all members practice life long celibacy.
PdkJ TIL adult adoption rates in Japan are high so that companies can carry on a particular family name, even if the next generation isn’t up to the task of running a successful business.
d9vr TIL that as part of the British Royal Navy’s ‘Last Resort Letters’, in the event of a catastrophe submarine commanders will verify annihilation of civilised society in Great Britain by checking if BBC Radio 4 is still broadcasting.
1anvD TIL that just outside Albuquerque you can drive East on Route 66 and hit a rumble strip that plays "America The Beautiful" if you drive the speed limit, turning the wheels of your car into a phonograph