George Merryweather was a British doctor and inventor, known for inventing the Tempest Prognosticator.
In 1832 George wrote his first essay "The means of maintaining uniform temperature and supporting fire without the agency of wood or coal". He invented the "Platina Lamp", which was described to "keep burning for a fortnight on an economical mixture of pure alcohol and whisky, at a cost of one penny for eight hours". [1]
His best-known invention was the Tempest Prognosticator—a weather predicting device also called "The Leech Barometer". [2] It consists of twelve glass bottles containing leeches, which, when disturbed by the atmospheric conditions preceding a storm, climb upwards, triggering a small whalebone hammer which rings a bell. Merryweather referred to the leeches as his "jury of philosophical councilors", suggesting that the more of the leeches that climbed, and the more the bell was rung, the greater the likelihood of a storm. He explained that the twelve bottles were placed in a circle in order that his "little comrades" might see one another and "not endure the affliction of solitary confinement". [3]
The invention had great success and caused a sensation when it was put on show at the Great Exhibition, so in 1850–1 Merryweather wrote "An essay explanatory of the tempest prognosticator in the Great Exhibition 1851". At this time he was an honorary curator of Whitby Literary and Philosophical Society. The device is on permanent exhibition there (as at 2024).
After the success of the Tempest Prognosticator at the Great Exhibition, Merryweather tried to persuade the British government to install his device at ports around the British coast. However, the government and the Meteorological Department decided to use barometers and weather charts instead. [4]
Modern science considers Merryweather's methods underlying the "Tempest Prognosticator" to be unproven. [5]
In 1835 Merryweather finished studying in MD University of Edinburgh. In 1840 he worked as a family doctor in Whitby, and by 1849 he was a surgeon.
Meteorology is a branch of the atmospheric sciences with a major focus on weather forecasting. The study of meteorology dates back millennia, though significant progress in meteorology did not begin until the 18th century. The 19th century saw modest progress in the field after weather observation networks were formed across broad regions. Prior attempts at prediction of weather depended on historical data. It was not until after the elucidation of the laws of physics, and more particularly in the latter half of the 20th century, the development of the computer that significant breakthroughs in weather forecasting were achieved. An important branch of weather forecasting is marine weather forecasting as it relates to maritime and coastal safety, in which weather effects also include atmospheric interactions with large bodies of water.
A barometer is a scientific instrument that is used to measure air pressure in a certain environment. Pressure tendency can forecast short term changes in the weather. Many measurements of air pressure are used within surface weather analysis to help find surface troughs, pressure systems and frontal boundaries.
The Great Exhibition of the Works of Industry of All Nations, also known as the Great Exhibition or the Crystal Palace Exhibition, was an international exhibition that took place in Hyde Park, London, from 1 May to 15 October 1851. It was the first in a series of world's fairs, exhibitions of culture and industry that became popular in the 19th century. The event was organised by Henry Cole and Prince Albert, husband of Victoria, Queen of the United Kingdom.
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Cleveland Abbe was an American meteorologist and advocate of time zones.
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The storm glass or chemical weather glass was an instrument claimed to help predict weather. It consists of a special liquid placed inside a sealed transparent glass. The state of crystallization within the liquid was believed to be related to the weather. The inventor is unknown but the device became popular in the 1860s after being promoted by Royal Navy Admiral Robert FitzRoy who claimed that
if fixed, undisturbed, in free air, not exposed to radiation, fire, or sun, but in the ordinary light of a well-ventilated room or outer air, the chemical mixture in a so-called storm-glass varies in character with the direction of the wind, not its force, specially from another cause, electrical tension.
Merryweather may refer to:
Abraham Follett Osler, known as A. Follett Osler, was a pioneer in the measurement of meteorological and chronological data in Birmingham, England.
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.
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The following outline is provided as an overview of and topical guide to the field of Meteorology.
Barometer World was the world's only barometer museum, and was located in the village of Merton, near Great Torrington, Devon, England. Barometer World makes, sells and restores barometers of a variety of types. It was established in 1979 by Philip Collins. In March 2022, Barometer World closed its museum and premises in Merton, Devon. It is now an online-only business.
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He later tried to persuade the government to install the leech jars at seaports to give storm warnings, but was met with a decidedly frosty reception from the Meteorological Department - created in 1854 and the forerunner of today's Met Office - which insisted on using barometers and weather charts instead of leeches.