The Galileo thermometer, or thermoscope, is a device named after the Italian physicist Galileo Galilei and designed to measure temperatures with a relatively good accuracy.

Today it is mostly used as a decoration item. Unlike most classical thermometers, the Galileo thermoscope relies on the buoyancy principle, and on the fact that the buoyancy of objects floating inside a liquid depends on the density of the latter, thus on the temperature of the medium.  Calibrated weights, on which temperatures are written, are attached to the glass bulbs inside the glass tube.

Great gift for older children and adults.

Warning: This is not a toy

Recommended for ages 10 years +