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All Topics Email Article. All rights reserved. Early History The first thermometers were called thermoscopes and while several inventors invented a version of the thermoscope at the same time, Italian inventor Santorio Santorio was the first inventor to put a numerical scale on the instrument.
Galileo Galilei invented a rudimentary water thermometer in which, for the first time, allowed temperature variations to be measured. In , Gabriel Fahrenheit invented the first mercury thermometer, the modern thermometer. English physician, Sir Thomas Allbutt invented the first medical thermometer used for taking the temperature of a person in David Phillips invented the infra-red ear thermometer in Photo provided by NASA How Thermometers Work If you look around your house you will find lots of different devices whose goal in life is to either detect or measure changes in temperature.
Temperature About Temperature What is temperature? Learn the history of the thermometer and the temperature of the universe. Other Weather Measuring Instruments The history and inventors behind different weather measuring instruments. In , however, scientists officially named the temperature scale after the astronomer to honor his work. The original scale differs from the modern use of Celsius. The creator set 0 as the boiling point of water and as its freezing point.
This was reversed shortly after his death to the more modern usage. One of the advantages of the modern scale is that the calculations from 0 to are far easier than Fahrenheit calculations. The base method is simply easier to calculate than the more complex Fahrenheit formula. As Celsius importantly noted, whenever the northern lights can be seen in the night sky, significant magnetic fluctuations take place.
Later in his grand tour, Celsius visited scientific centers throughout Italy as well as in Paris and London. While in Paris, he became acquainted the astronomer Pierre Louis de Maupertuis. Maupertuis decided to lead an expedition that would definitively settle the dispute. He invited Celsius to join the expedition, which began in and took the group through northernmost Sweden. Involvement with the project gained Celsius significant recognition and, upon his return to Uppsala, he was granted the authority and funds to establish a modern observatory there, which he completed in In addition to his early observations of the aurora borealis, Celsius carried out many other astronomical studies.
He developed a photometric method of measuring the intensity of starlight and assiduously cataloged the results he obtained for hundreds of stars. He also kept meteorological records, but was unhappy with the inaccuracy of thermometers in use at the time.
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