Charles J Gervasi ⚡🛡️🥥The Art of #Electronics' table of #thermometry methods includes your finger and crickets. 😁
tomsharpIn 1901, Ferdinand Kurlbaum and Ludwig Holborn invented the disappearing-filament pyrometer about the same time that Harmon Northrup Morse invented it. #Poetry #Science #History #Thermometry #Pyrometer #Kurlbaum #Holborn (https://sharpgiving.com/thebookofscience/items/p1901c.html)
Project GutenbergDaniel Gabriel Fahrenheit physicist, inventor and scientific instrument maker was born #OTD in 1686.
He created the temperature scale that bears his name in 1724. He set the zero point of his scale at the temperature of a mixture of ice, water, and ammonium chloride, a freezing brine solution. He established 32°F as the freezing point of water and 212°F as the boiling point of water at standard atmospheric pressure. He also invented the mercury-in-glass thermometer.
Anders Celsius published his research at Abhandlungen über thermometrie, von Fahrenheit, Réaumur, Celsius, (1724, 1730-1733, 1742)
Hrsg. von A.J. von Oettingen.
Available via @internetarchive
Abhandlungen über thermometrie, von Fahrenheit, Réaumur, Celsius, (1724, 1730-1733, 1742) : Oettingen, A. v. (Arthur), 1836-1920, ed : Free Download, Borrow, and Streaming : Internet Archive
Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb.
Historical note:
1742 Anders Celsius invented the Celsius temperature scale. In its original form the scale had 0 degrees for the boiling point of water and 100 degrees for its freezing point.
1743 The scale was changed by Jean Pierre Christin so that 0 degrees is the freezing point of water and 100 degrees is its boiling point.
via @internetarchive
In his paper Observations of two persistent degrees on a thermometer, Christin recounted his experiments showing that the melting point of ice is essentially unaffected by pressure. He also determined with remarkable precision how the boiling point of water varied as a function of atmospheric pressure. He proposed that the zero point of his temperature scale, being the boiling point, would be calibrated at the mean barometric pressure at mean sea level.
#OTD in 1743.
French physicist Jean-Pierre Christin published the design of a mercury thermometer using the centigrade scale with 0 representing the melting point of water and 100 its boiling point.
Available at : Annales des sciences physiques et naturelles, d'agriculture et d'industrie
By Société d'agriculture, sciences et industrie de Lyon. via @googlebooks
For the German speakers: there is an interesting book on thermometry, describing the works of Fahrenheit, Réaumur, Celsius:
In 1878, Samuel Pierpont Langley invented the bolometer, capable of measuring thermal radiation from any distance. #Poetry #Science #History #Thermometry #Bolometer #Pierpont (https://sharpgiving.com/thebookofscience/items/p1878f.html)
In 1871, Carl William Siemens proposed using platinum for the sensing element of a resistance thermometer. #Poetry #Science #History #Thermometry #Thermometer #Siemens (https://sharpgiving.com/thebookofscience/items/p1871b.html)
