Galileo thermometer

This Galileo thermometer (named after the Tuscan physicist Galileo Galilei) is a nice addition to your interior. The density of the liquid is designed so that objects with the red liquid sink one by one as the liquid heats up and the density decreases. As can be seen from the sticker, it was mouth-blown at the Joska glassworks in Germany.
 Dimensions: 29 cm height and 6 cm diameter at the bottom