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TIL That a Panopticon is a specifically designed jail that allows all prisoners of an institution to be observed by a single security guard, without the inmates knowing whether or not they are being watched.

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J408 TIL that, during the conquest of Mexico and due to lack of gunpowder, three Spanish conquistadors climbed the Popocatépetl volcano (17,802 ft/5,426 m) and hung themselves using ropes into the crater to get sulfur for their cannons and succeded. Six times.
lo00a Til accounts of post combat PTSD date back to Mesopotamia during the Assyrian dynasty (1300-609 BC). The Mesopotamians explain the disorder in terms of spirit affliction; the spirit of those enemies whom the patient had killed during battle causing the symptoms
JYvpQ TIL of Tek Sing often referred to as "Titanic of the East". Happening 90 years before the Titanic went down, the Tek Sing was overloaded with cargo and also carried 1,600 emigrants, akin to the Titanic they were low on lifeboats from the start. Less than 190 people were rescued.
oByko TIL the panda ant (Euspinolia militaris), so-called because of its black and white alternating coloration, is actually a species of wasp found in the forests of Chile and Argentina. They are known to deliver a very painful sting when they attack. Females are wingless and males have wings.
Lkvap TIL that lots of people order Bloody Marys on aeroplanes but never drink them on the ground. This is because rich umami flavours - like those found in tomato juice - are one of the few tastes that aren't dulled by loud engine noise.