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kJdN4 TIL: American inventor William Richardson created an enhanced swimming apparatus around 1880, enabling users to reach speeds between 4 and 6 miles per hour. The device utilized a central longitudinal shaft to transfer cranking movements of hands and feet to a four-bladed propeller.
QJ7ek TIL Nobel winner in Chemistry John Howard Northrop, known for isolating and crystallizing the first bacteriophage, committed suicide