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Safield
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£12.99
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This amazing Galileo Thermometer is a working thermometer as well as an attractive piece of glassware. Searching for a way to measure exact temperatures, Galileo discovered this fascinating method. He placed several exactly weighty balls in a cylinder filled with a certain liquid, and found that the balls rose or fell according to the current temperature. By this method he was able to determine the correct temperature. The thermometer works on the principle discovered by Galileo that the density of a liquid changes as temperature varies. Each of the glass balls is exactly weighted by partially filling the spheres with liquid. When the temperature rises, the liquid in the glass cylinder becomes less dense and the heavier balls sink slowly to the bottom. The Galileo Thermometer also doubles up as a stunning colour changing nightlight making it a fascinating addition to any room! When the light is switched on it illuminates the glass thermometer beautifully and slowly changes from colour to colour. - Fantastic piece of Science Equipment - 7 Different Light Phases - 5 Floating temperature balls - 18 to 26 degrees. - Ideal for any home or office - On/off Switch for Light - Requires 3 x AA Batteries (Not Included) - Measures 33cm (with base)
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