Pneumatics- flasks, thermometers and wind gauges
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Pneumatics- flasks, thermometers and wind gauges
Pneumatics- flasks, thermometers and wind gauges, 18th century.. Pneumatics- flasks for the artificial production of Pyrmont water, thermometers by James Kewley and John Leslie, wind gauges by James Lind, Martin and Pierre Bouguer, and an echo device, the Whispering Place. Copperplate engraving by Wilson Lowry after an illustration by J. Farey from Abraham Rees -Cyclopedia or Universal Dictionary, - London, 1816
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Media ID 14207815
© Florilegius / Mary Evans
Abrahamrees Cyclopedia Flasks Pneumatics Sciencesandliterature Thermometer Universaldictionaryofarts
EDITORS COMMENTS
This 18th century copperplate engraving, titled "Pneumatics," showcases a collection of intriguing scientific instruments that were essential to the study of atmospheric phenomena during this period. The image includes several pneumatic flasks, which were used for the artificial production of Pyrmont water. Pyrmont water, also known as mineral water, was believed to possess healing properties due to its carbonation and mineral content. The flasks were filled with water and sealed, allowing the natural carbon dioxide in the water to become trapped, creating the effervescent beverage. The engraving also features various thermometers, including those designed by James Kewley and John Leslie. Kewley's thermometer, also known as a mercury thermometer, used a column of mercury to measure temperature, while Leslie's thermometer employed a bulb filled with alcohol. Both designs revolutionized temperature measurement and paved the way for more accurate scientific investigations. Wind gauges, represented by designs from James Lind, Martin, and Pierre Bouguer, were crucial for understanding wind patterns and weather systems. These early wind gauges utilized a vane to measure wind direction and an aneroid or mercury column to measure wind speed. Another fascinating instrument depicted in this engraving is an echo device, known as the Whispering Place. The Whispering Place was a chamber with two small openings, allowing a whisper at one opening to be heard clearly at the other, even from a considerable distance. This device was used to explore the properties of sound and contributed to the development of acoustic research.
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