List of Physical Visualizations
and Related Artifacts
With tag “leeches”

1850 – Merryweather’s Leech Barometer

In 1850, British doctor and inventor George Merryweather built a barometer that uses live medicinal leeches to predict storms: The twelve leeches are kept in small bottles inside the device; when they become agitated by an approaching storm they attempt to climb out of the bottles and trigger a small hammer which strikes a bell. The likelihood of a storm is indicated by the number […]

Added by Pierre Dragicevic, sent by Aurélien Tabard. Category: Measuring instrument. Tags: , ,
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