› added 11 years ago

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TIL The national average is that 47 percent of people on bone marrow donor registries say no when they are asked to donate.

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d8Plr TIL that, due to going hoarse while campaigning, President Gerald Ford's concession speech when he lost to Jimmy Carter was delivered by his wife, Betty
6EQeQ Matter tells space how to curve, and curved space tells matter how to move. That's the basic principle behind Einstein's General Relativity, which linked, for the first time, the phenomenon of gravity with that of spacetime and relativity. Place a mass down anywhere in the Universe, and the space around it will curve in response. But if you take that mass away, or move it elsewhere, what causes the spacetime to "snap back" to its unbent position?
n6Mb TIL Groups of Hermit Crabs will sometimes form “Vacancy Chains” around empty large shells that they themselves are too small to fit into. Once a large enough crab comes to occupy the big shell it initiates a mass swap of shells so that all crabs in the chain can get an upgrade.
grV7X TIL this is why they're called "Milk Shakes"
8N68 TIL The UK had to cancel a lottery because players didn’t understand negative numbers