› added 9 years ago

1730

TIL one gallon (about 4 liters) of gasoline contains about 31,000,000 calories

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P15mV TIL that Robert Stack of Unsolved Mysteries fame was a world record holding skeet shooter. Here he is talking about it at the Olympics with Arthur Ashe
70Jb TIL that all Pakistani passports bear the inscription “This passport is valid for all countries of the World except Israel.”
GYRW1 TIL the world's first emergency phone number was launched in London in 1937. It initially only covered a radius of 12 miles. The 999 number was chosen due to the ease of dialing it on phones at that time.
yeja TIL that the velociraptor sounds in Jurassic Park are actually the sounds of mating tortoises recorded at Marine World
Y7QBr TIL banks keep stacks of bills with dye packs next to a magnetic plate at a bank teller's workstation. It remains in standby mode until it's removed from the plate, causing it to become armed. A radio transmitter located at the door triggers an explosion that can reach temperatures of about 400 °F.