Galileo Thermometer 11" US
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Galileo Thermometer - 11 inch tall
The Galileo Thermometer is a uniquely styled tool that displays the temperature of it's current environrment using capsules containing different mixtures of mineral oil, isopropyl alcohol, and food coloring. This 11-inch tall model has 6 capsules and is accurate for a temperature range between 18C (64F) and 29C (84F), all while giving visual demonstrations of liquid density and bouyancy.
Galileo Galilei, the pioneer of modern astronomy and physics, (1564-1642), discovered that liquids change density as the temperature increases or decreases. Based on this principle, the colored glass spheres inside the glass Galileo thermometer have been precisely weighted so that they respond to temperature changes. When the temperature rises, the liquid inside the Galileo thermometer becomes less dense and the colored spheres floating inside will sink towards the bottom. When the temperature of the room cools, the process is reversed and the spheres will rise from the bottom.
Be careful! If broken, the colored liquid mixtures in the capsules will stain fabric and carpet.