Galileo Thermometer 10 Bulb 44cm
A fascinating item that that makes a great desk or shelf accessory.
There are 10 multi coloured bulbs inside the liquid filled glass tube.
As the temperature changes, the different coloured bulbs change float or sink. The lowest floating bulb shows the current temperature - there is a metal tag on the bottom of each.
Our Galileo thermometer covers a temperature range of 16°C to 34°C