The Galileo Thermometer is an elegant temperature reading device that every science geek needs. It is a sealed glass cylinder that contains clear liquid and glass bulbs that are all different densities. As the temperature changes, the balls rise and fall, giving you a temperature reading.
Heebie Jeebies Galileo Thermometer - 28Cm: The Galileo Thermometer is an elegant temperature reading device that every science geek needs. It is a sealed glass cylinder that contains clear liquid and glass bulbs that are all different densities. As the temperature changes, the balls rise and fall, giving you a temperature reading.
The temperature is read from the engraved metal discs that hang off each bulb – if a bulb is floating in the middle, that is the current temperature, or if some are at the top and some at the bottom the temperature will between the bulbs on either side of the gap. This amazing thermometer employs the principles of buoyancy and density whilst looking awesome.
The body of the Galileo Thermometer is filled with paraffin and air, allowing the paraffin to expand and contract as needed. This isolates it for air pressure which can affect the density of liquids. Each coloured bauble is labelled with its corresponding temperature. By noting the lowest floating bauble you can read the current temperature.
So as the temperature of the paraffin falls, the air pressure becomes denser allowing the baubles to rising and vice versa. Each bauble is carefully weighted so that they will swap from floating to sinking at a particular temperature, giving you an accurate reading. The Galileo Thermometer is named after Galileo Galilei to honour his discovery of the principle on which this thermometer is based.
A sensation since it emerged in the early 90s
The perfect gift for the lover of science and Galileo!
There are 4 sizes of Galileo Thermometer available. This one is 28cm tall with 6 glass balls (temperature range 18°C to 28°C). This is the perfect gift for mum, dad, or any nerdy adult as it is a beautiful piece to put on display.
Recommended Age
6+ Years
