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A Celsius Galilean thermometer in two degree gradations. A risen orange orb denotes 24 °C. A Galileo thermometer (or Galilean thermometer) is a thermometer made of a sealed glass cylinder containing a clear liquid and several glass vessels of varying density. The individual floats rise or fall in proportion to their respective density and the ...
As a temperature indicator it used red wine. (Rømer scale), The temperature scale used for his thermometer had 0 representing the temperature of a salt and ice mixture (at about 259 s). 1709 — Daniel Gabriel Fahrenheit constructed alcohol thermometers which were reproducible (i.e. two would give the same temperature)
Philo of Byzantium is credited with the construction of the first thermoscope (or Philo thermometer), an early version of the thermometer. [6] It is also thought, but not certain, that Galileo Galilei discovered the specific principle on which the device is based and built the first thermoscope in 1593.
Galileo thermometer: invented by Galileo Galilei in 1593. Toffoli gate: a universal reversible logic gate invented by Tommaso Toffoli. Public toilets: latrines were part of the sanitation system of ancient Rome, placed near or as part of public baths .
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]
1593 – Galileo Galilei builds a first modern thermoscope. But it is possible the invention was by Santorio Santorio or independently around same time by Cornelis Drebbel. The principle of operation was known in ancient Greece. c. 1611 –1613 – Francesco Sagredo or Santorio Santorio, put a numerical scale on a thermoscope.
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Galileo Ortelius. Galileo Galilei and Simon Stevin: heavy and light balls fall together (contra Aristotle). Galileo Galilei and Simon Stevin: Hydrostatic paradox (Stevin c. 1585, Galileo c. 1610). 1520: Scipione dal Ferro (1520) and Niccolò Tartaglia (1535) independently developed a method for solving cubic equations.