Nephoscope

Nephoscope
Mirror Nephoscope
UsesMeasuring the altitude, direction, and velocity of clouds
InventorCarl Gottfrid Fineman, Louis Besson and Mikhail Pomortsev

A nephoscope is a 19th-century instrument for measuring the altitude, direction, and velocity of clouds, using transit-time measurement. This is different from a nephometer, which is an instrument used in measuring the amount of cloudiness.

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