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The Tempest Prognosticator Options
Daemon
Posted: Sunday, October 15, 2017 12:00:00 AM
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The Tempest Prognosticator

The Tempest Prognosticator, known also as the Leech Barometer because it uses leeches to predict storms, was invented in 1850 by Dr. George Merryweather. The device contains 12 leeches, each kept in a small bottle. When the leeches become agitated by electrical conditions in the atmosphere generated by an approaching storm, they attempt to climb out of the bottles and trigger a small hammer that strikes a bell. Whose poetry inspired Merryweather to build his device? More...
Potso Molebatsi
Posted: Sunday, October 15, 2017 2:08:18 AM

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This was a genius idea.
KSPavan
Posted: Sunday, October 15, 2017 2:40:17 AM

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The Tempest Prognosticator
The Tempest Prognosticator, known also as the Leech Barometer because it uses leeches to predict storms, was invented in 1850 by Dr. George Merryweather. The device contains 12 leeches, each kept in a small bottle. When the leeches become agitated by electrical conditions in the atmosphere generated by an approaching storm, they attempt to climb out of the bottles and trigger a small hammer that strikes a bell.
raghd muhi al-deen
Posted: Sunday, October 15, 2017 9:48:38 AM

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Tempest Prognosticator
Tempest Prognosticator
The Tempest Prognosticator

The tempest prognosticator, also known as the leech barometer, is a 19th-century invention by George Merryweather in which leeches are used in a barometer. 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.
Invention and development

Dr. Merryweather, honorary curator of the Whitby Literary and Philosophical Society's Museum, detailed the sensitivity that medicinal leeches displayed in reaction to electrical conditions in the atmosphere. He was inspired by two lines from Edward Jenner's poem Signs of Rain: "The leech disturbed is newly risen; Quite to the summit of his prison."[1] Merryweather spent much of 1850 developing his ideas and came up with six designs for what he originally referred to as "An Atmospheric Electromagnetic Telegraph, conducted by Animal Instinct." These ranged from a cheap version that he envisaged would be used by the government and the shipping industries to a more expensive design. The expensive design, which took inspiration from the architecture of Indian temples, was made by local craftsmen and shown in the 1851 Great Exhibition at The Crystal Palace in London.[2]

On 27 February 1851 he gave a near three-hour essay to members of the Philosophical Society entitled "Essay explanatory of the Tempest Prognosticator in the building of the Great Exhibition for the Works of Industry of All Nations."[2]

with my pleasure
monamagda
Posted: Sunday, October 15, 2017 3:14:55 PM

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Dr. George Merryweather poem inspiration

The whole device was inspired by two lines from Edward Jenner's poem Signs of Rain:
“The leech disturbed is newly risen;
Quite to the summit of his prison.

III.
The Seasons
Signs of Rain
Dr. Edward Jenner

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