› added 9 years ago

161

TIL when a crow dies, the other crows investigate if there’s a threat where the death occurred, so they can avoid it in the future.

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PYQ1G TIL Some of John Napier's (the inventor of logarithms) neighbors accused him of being a sorcerer and in league with the devil.
Y7LRG TIL that the pound sign £ is a stylised L, from the Latin "libra pondo" (a Roman unit of weight). The reason why it's called a "pound sterling" was because it was originally defined as the value of a pound of sterling silver.
R7rDj TIL Taco Bell provides tortillas for NASA to use in lieu of bread, which cause problems due to crumbs getting caught in instruments - these Taco Bell tortillas are ideal due to their long shelf life
yV778 TIL that VisiCalc, the first spreadsheet program, was also the first "killer app" (a program that makes people buy a computer just to run the software). VisiCalc was so revolutionary, and so powerful, that people bought the $2000 Apple II (the only computer it ran on) to run the $100 application.
AN5oa TIL that moving air cools things down by removing the "boundary layer" of warmer air around objects, exposing them to the colder air in the rest of the area