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TIL The Eureka Moment (also known as 'Aha! moment) refers to the common human experience of suddenly understanding a previously incomprehensible problem or concept. Some research suggests it acts as a memory advantage. It is unclear where exactly it occurs in the brain.

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e0715 TIL of infrasound - a low-frequency sound (19Hz and below) that cannot be heard, but literally unsettles human beings. Some horror movie music composers use this sound to make audiences feel dread just before disturbing or scary images appears on the screen.
YYAW TIL President Ronald Reagan majored in Economics, where he graduated with a ‘C’ grade.
JYQV1 TIL The reason dogs look at you while they poop is because they’re looking for your protection while they’re in their most vulnerable time.
gEvD TIL - The largest predator in history—bigger than megalodon, bigger than predator X, nearly thrice as large as a T-Rex—is alive right now. It’s the Sperm Whale.
ADbWB TIL Limewire developed a subscription-based music-streaming service called ‘Grapevine,’ but industry execs wouldn’t accept the inevitable, and chose to sue them into obsolescence instead. Years later, Spotify arrived.