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Galilean Thermometer

A Galilean thermometer is made of a sealed glass cylinder containing a clear liquid and several glass vessels of varying density. As the temperature changes, the individual floats rise or fall in proportion to their respective density and the density of the surrounding liquid.

Although named after the 16th–17th-century physicist Galileo Galilei, the thermometer was not invented by him.

It is named after him because he discovered the principle on which this thermometer is based.

The so-called 'Galileo thermometer' was actually invented by a group of academics and technicians known as the Accademia del Cimento of Florence, who included Galileo's pupil, Torricelli and Torricelli's pupil Viviani.

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Uploaded on February 14, 2022
Taken on February 13, 2022