The well-known scientist Galileo Galilei was not only known for his contributions to astronomy, but also for a quirky thermometer. Although this thermometer is named after the Italian scientist, he was not invented by himself. The so-called Galileo thermometer was invented by a group of academics and technicians named Accademia del Cimento or Florence.
Although the Galileo thermometer is so named after Galileo Galilei, he did not invent it himself. However, Galilei has discovered the principle on which this thermometer is based. This principle is the fact that the density of a liquid changes in relation to the temperature. Based on this principle, Galilei came up with the 'thermoscope'.
Colorful range of Galileo thermometers
A Galileo thermometer consists of a closed glass tube containing liquid hydrocarbon and various glass bubbles filled with colored liquid. Metal plates with the temperature in degrees Celsius are attached to the bottom of these bubbles. As the temperature rises or falls, these bubbles begin to move accordingly so that you can read the temperature.