› added 4 years ago

103

TIL Cats rarely meow at each other, it was rather developed exclusively to communicate with people

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ADvon TIL that while humans make up just 0.06 gigatons of the world's biomass (just 0.01%) they have destroyed over 450 gigatons of biomass over the pass 10,000 years.
xMJw TIL that in the ‘60s, the C.I.A. paid Vietnamese spies with merchandise from mail-order Sears catalogs, since they had little use for paper money
6EZ6m TIL Due to the absence of the fifth finger on the hands of cartoon characters, animation studios have managed to save several millions of dollars, since this decision cut the time for the frame-by-frame rendering of characters.
OooKL TIL that Eli Whitney, inventor of the cotton gin, was white
e07Nn TIL Before clocks, there were candle clocks, that when burned, indicated the passage of periods of time. To set an alarm, you pushed a nail into the desired point and the nail would ld fall and clank on the metal holder.