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 of times the bell is struck. The device, which Merryweather called the "tempest prognosticator", was shown […]

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