› added 7 months ago

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TIL that ancient Roman concrete’s resilience comes from lime clasts, which helped it self-repair cracks and maintain strength over centuries

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via reddit.com

pYeGZ TIL of the Dutch nurse Lucia de Berk, who was falsely convicted of killing 4 children under her care. She spent 6 years in jail before she was exonerated.
oDwL TIL that the first person to spot a flying saucer, didn’t himself describe its shape as a saucer. But said the objects moved erratically: “like a saucer if you skip it across the water”. And was misinterpreted by the media.
YpBJ7 TIL That during the Berlin Blockade of 1948, US Air Force Pilot Gail Halvorsen dropped Candy & Chewing Gum with hand made parachutes for the Children of West Berlin. The Children would know it was Halvorsen, as when flying over Berlin, he would wiggle his wings side by side
pYJw8 TIL Prince has a huge stash of unreleased records and fully complete videos.
epWd5 TIL Dalmatians became associated with firehouses in the 18th and 19th centuries because of their ability to protect firefighting horses, fend off street dogs, clear the way with barking, and guard the equipment.