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(Galileo did invent a thermometer called Galileo's air thermometer, more accurately called a thermoscope, in or before 1603.) [1] The instrument now known as a Galileo thermometer was invented by a group of academics and technicians known as the Accademia del Cimento of Florence, [2] who included Galileo's pupil, Torricelli and Torricelli's ...
Principle of a thermoscope. The air in the bulb expands at higher temperatures, which lowers the liquid level in the tube. Devices employing both heat and pressure were common during Galileo's time, used for fountains, nursing, or bleeding in medicine. [3]
1709 — Daniel Gabriel Fahrenheit constructed alcohol thermometers which were reproducible (i.e. two would give the same temperature) 1714 — Daniel Gabriel Fahrenheit invents the mercury-in-glass thermometer giving much greater precision (4 x that of Rømer). Using Rømer's zero point and an upper point of blood temperature, he adjusted the ...
In 1607, Galileo Galilei constructs a thermoscope. In 1643, Evangelista Torricelli invents the mercury barometer. [1] In 1662, Sir Christopher Wren invented the mechanical, self-emptying, tipping bucket rain gauge. In 1714, Gabriel Fahrenheit creates a reliable scale for measuring temperature with a mercury-type thermometer. [2]
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Sagredo added a scale to Galileo's thermoscope to enable the quantitative measurement of temperature, [14] and produced more convenient portable thermometers. [15] Sagredo also discussed with Galileo the possibility of a telescope using a mirror (a reflecting telescope). [16] In June 1619, Galileo and Sagredo exchanged portraits. [17]