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71

TIL my uncle was my dad

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e06PL TIL a space shuttle’s main engine is 99.9% efficient, meaning that almost all of its hydrogen and oxygen is used to create thrust. By comparison, an automobile engine is only about 30% efficient.
EBRW TIL the “Share a Coke” campaign—where Coca-Cola replaced its name on bottles with people’s first names —increased Coca-Cola’s U.S. sales by more than 2 percent and, in doing so, helped reverse more than 10 years of decline in Coke consumption in the U.S.
neL0Y TIL about pan-human love. In past 300k years, we overlapped with 6 known human species. All but us now extinct, though we interbred and carry the DNA of at least two (Denisovans, Neanderthals). Some Neanderthal skeletons carry our DNA too. Denisovans and Neanderthals mixed separately from us also.
yrOM TIL the phrase “curiosity killed the cat” was originally “care killed the cat” and had a little used second part “but satisfaction brought it back”
4kdPR TIL about HSC Francisco, the fastest passenger ship in operation, serving the Buenos Aires - Montevideo route at 67 mph / 107 kph