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TIL The sound of Darth Vader mask’s respirator function is trademarked in the U.S. Patent and Trademark Office under Trademark #77419252 and is officially described in the documentation as “The sound of rhythmic mechanical human breathing created by breathing through a scuba tank regulator.”

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KLJ TIL the Coriolis Effect can be visualized on a merry-go-round aka roundabout, by throwing a ball to a fellow rider directly across from you. To him it will appear to curve opposite of the way you are spinning, although to a viewer not on the merry-go-round it appears to fly straight.
GYwV1 TIL In 1907 Standard Oil developed the the Mei Foo kerosene lamp, which translates in Chinese to “beautiful confidence.” In its first year, more than 850,000 lamps were sold in China at around 7.5 cents each, and could stay lit for more than 240 hours on a single gallon of kerosene.
XE5dP TIL the first German defeat and the first Japanese defeat of World War 2 both came at the hands of Australian forces.
GAGl1 TIL Honeybee venom rapidly kills aggressive breast cancer cells and when the venom's main component is combined with existing chemotherapy drugs, it is extremely efficient at reducing tumour growth in mice.
DkMj TIL Classical marble statues used to be painted in color; although they have faded to blank whiteness, we can use UV light to see the original textures