Science & technology

Coriolis force

1835

The Coriolis force is an apparent force that acts on moving objects when they are viewed from a rotating frame of reference, such as the spinning Earth. It is named after the French engineer and mathematician Gaspard-Gustave de Coriolis, who analysed the equations of motion in rotating systems in a paper on machines like water wheels. On Earth it deflects moving air and water to the right in the Northern Hemisphere and to the left in the Southern, which is why large storms rotate counterclockwise in the north and clockwise in the south. It is essential in meteorology and oceanography, shaping winds and currents, though it is far too weak to determine the direction in which water drains from a sink.

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This moment belongs to the Industrial era (1760 CE to 1914 CE), steam, factories and revolutions. You can also browse everything in the 19th century.