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TIL the estimated odds of a structure in Tornado Alley taking a direct hit from a tornado is 5,000 to 1

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Xnlj TIL that foundries use dirt floors because molten metal can make concrete explode due to trapped moisture
xbbk TIL: North Korea used to buy full-page ads in the New York Times
Y7M87 TIL that in 2014, Scientists at UCLA published a study which demonstrated that muscle mass, independent of fat mass and cardiovascular and metabolic risk factors, was inversely associated with mortality risk in older adults
bQbZ TIL Australia & New Zealand introduced long service leave in the 1860s, a 13 week vacation for every 10 years of work, to allow time to sail back to England, have a 3 week holiday, and sail back.
8PlG TIL in 1994, the assets of the top 6 American banks was 14.8% of the GDP. In 2009, their assets were 62.1% of the GDP.