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TIL the first tanks in World War I were held together by rivets until it was discovered that explosions would turn the rivets into shrapnel, injuring soldiers in the tank even if the explosion did not penetrate the armor

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EZpd TIL Clarence Birdseye discovered flash freezing when fishing with the Inuit. After a fish was caught in -40c it would instantly freeze, when thawed and cooked it tasted fresh again and this is why we are able to have Hot Pockets today.
ANZRa TIL That in 2004, a 25 year old virginal Japanese woman had surgery to remove a mature fetiform teratoma (a tumor that formed a doll-like structure) that contained brain, eye, spinal nerve, ear, teeth, thyroid gland, bone, bone marrow, gut, trachea, and blood vessel tissue... and more. 😳
m1mQv TIL the first Oscars, in 1929, lasted 15 minutes and the longest ceremony was 2002, which lasted four hours and twenty-three minutes.
wLoB7 TIL of Anti-flash white, a brilliant white color applied to nuclear bombers to reflect some of the thermal radiation from a nuclear explosion, protecting the aircraft and its occupants
newAo TIL that 50% of people have a trait that gives them goosebumps and chills when listening to powerful music which is caused by a stronger connection between the auditory information and emotion centers in your brain.