Current label: Emulsion cycloid motor
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Network optimization information; Marlin Merson, 1588-1648), in 1615, he defined the track of the wheel at the edge of the wheel as the cycloid, which rolls along the ground without sliding. In 1637, French mathematician Descartes published Geometry, which introduced variables and rectangular coordinates into mathematics and created analytic geometry, which became "the turning point of mathematics"
