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TIL The zeptosecond is the shortest unit of time ever measured

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l7owr TIL that GPS(global positioning system) technology was originally restricted to military use. In 1983, Korean Air Lines Flight 007 was shot down by a Soviet fighter aircraft after it had strayed into Soviet territory. US President Regan then authorized GPS use by civilians.
v1Zar TIL space is really really empty. If you add up the diameters of all the other planets + Pluto in our solar system ( 382,367km they )fit in the gap between the earth and the moon (384,400km)
Mkr8 TIL that in 2010, Taco Bell secretly reduced the sodium content of its food at 150 Dallas area restaurants by 23%. Without telling anyone, they replaced the salt with “other spices and other ingredients.” Two months later, they had received exactly zero complaints about the changes.
KYw89 TIL about 11 year old Herman Lehmann, the son of German immigrants, who was captured by the Apaches in central Texas and lived with them for 6 years. He later went on to kill an Apache medicine man to avenge the death of his chief and master and took asylum with the Comanches.
dD9gK TIL pizza rolls were created in the 1960s by a cook working for a Chinese food company searching for new uses for their egg roll machine. She tested several sandwich fillings, but pizza flavors tested best, causing her to say, "Pizza rolls are nothing but egg rolls with pizza crust and filling."