Digi-Sense Galileo Thermometer; 64 to 80°F (18 to 26°C), 13 in. - 08006-04

08006-04 Galileo Thermometer; 64 to 80°F (18 to 26°C), 13 in. by Digi-Sense

Colorful glass thermometer is based on Galileo's theory developed over 400 years ago: in liquid, a body of fixed mass becomes less buoyant as the liquid temperature rises, and more buoyant as the temperature decreases - due to changes in liquid density. As temperature changes, the multi-colored balls rise and fall within the liquid-filled thermostatic tube. Lowest sphere in the top group within the instrument indicates ambient temperature.

• Hand-crafted thermometers
• Non-mercury liquid
• Five floating spheres provide both Fahrenheit and Celsius readings
• Thirteen inches tall