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TIL that simply moving the eyes triggers the eardrums to move too. Keeping the head still but shifting the eyes to one side or the other sparks vibrations in the eardrums, even in the absence of any sounds.

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4kExJ TIL that the Battle of Paoli, a British victory against America is often falsely deemed a massacre where British troops took no prisoners. Actually they took many American prisoners, but the British use of bayonet made the battle very bloody.
XE5pP TIL A study showed that not only kids, but even adults sleep better while being gently rocked. Participants of the study fell asleep faster, slept more deeply and woke up less in beds that rocked them throughout the night.
oB6Po TIL a study in 2014 found men are generally more spiteful than women and young adults more spiteful than older ones, and that spitefulness generally cohabits with traits like callousness, Machiavellianism and poor self-esteem.
a8vny Today I Learned of the Lost Battalion in WW1, an American unit who was surrounded for 6 days after pushing too far forward into German lines, subject to friendly artillery fire and their only contact was via carrier pigeon
awLRy TIL The N1 moon rocket was originally purposed as a super-heavy ICBM capable of delivering a 100-megaton warhead