Galileo thermometer

Galileo thermometers are used to measure indoor air temperature, due to their limited measurement range.

How does a Galileo thermometer work?

This is the key to how the Galileo thermometer works: as the temperature of most liquids increases, their density decreases.

In the Galileo thermometer, the small glass bulbs are partly filled with different-coloured liquids.

Now, Galileo thermometers are used mainly for decoration rather than for measuring temperature.

Figure 4 shows a schematic representation of a Galileo thermometer at two different temperatures (the temperature markings on this example are in Fahrenheit).

The thermoscope, or Galileo thermometer was constructed by Galileo Galilei in 1607.

Galileo thermometer (Galilean thermometer)

A Galileo thermometer or Galilean thermometer is a thermometer that uses the density of liquids to measure temperature.

The device now called the Galileo thermometer was revived in the modern era by the Natural History Museum, London, which started selling a version in the 1990s.

In addition to the magazine is a collectable information guide to Meteorology - that builds up over the issues and a welcome pack with membership card and a free Galileo thermometer.

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 densities.

The 17th century saw the development of the barometer and the Galileo thermometer, while the 18th century saw the development of the thermometer with the Fahrenheit and Celsius scales.

The so-called 'Galileo thermometer' was 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.