Science Museum Galileo Thermometer
Precisely weighted balls rise or fall inside the glass cylinder according to the temperature.
The cylinder is filled with a Hydrocarbon which has the ability to change density depending on the temperature, allowing the balls to rise and fall.
The Galileo Thermometer is beautifully crafted and ideal for your home or office.
Attractive ornamental glass thermometer.
5 coloured liquid filled balls marked 18-26 degrees Celcius which rise or fall depending on the temperature.
Lowest floating ball represents the temperature
Science Museum information sheet enclosed