Mathematical Puzzle: IF 22+4...
Mathematical Puzzle: IF 22+4=24, 13+6=16 and 80+2=82 THEN 67+9=?Correct answers: 164
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Revolving turret patentIn 1862, U.S. patent No. 36,593 was issued for a revolving turret for battleships to the inventor, Theodore Ruggles Timby (born Dover, NY, 5 Apr 1822). When Ericsson built the first turret battleship in the world, the Monitor, he added a turret based on Timby's design to the ship.«[Image: detail from Patent No. 36,593] |