An instrument that continuously records wind speed and direction on a moving chart or digital display.
From Greek 'anemo-' (wind) + '-graph' (writing/recording instrument). This device emerged in the 19th century as meteorology became a more rigorous science requiring continuous observation.
The first anemographs were mechanical marvels with ink pens scratching lines on rotating drums—they gave meteorologists their first precise records of how wind actually behaves minute-by-minute.
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