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TIL that James Brown starred in a video explaining the use of the Blower Door Test; a test used to evaluate the airtightness of a building

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GYdXj TIL Insurance companies invented the “Fire Brigade” it was only later the government saw the need for the service to be available to everyone that they created the government run Fire Department around the American Civil War era.
QJA6M TIL that Toshiba created the worlds smallest spinning platter hard drive (HDD) in 2004, at a size of just .85 inches (2.1 CM), which could hold 2 or 4 Gigabytes of data and was even used in phones and Apple iPods of the era.
e0eQ4 TIL There's a strong correlation between social mobility and equality, an unequal society will have stagnant social classes, in fact out of 8 countries studied the USA, the country with the highest inequality, also had the worst social mobility while Denmark, the most equal, had the best
ANwO4 TIL while Dick Fosbury was creating the Fosbury Flop, which became the standard high jump style after his 1968 Olympic gold, Debbie Brill was developing the same technique, calling it the Brill Bend. Neither knew of each other's innovation until they competed at the same junior competition.
6E8AW TIL how Native Americans could easily take down the mighty buffalo. The buffalo’s lungs share the same compartment (unlike humans who have two separate compartments). So when an arrow/spear pierces the Buffalo’s lung cavity (pleura), both lungs collapse, bringing the buffalo down swiftly.