Galileo Thermometer explanation and timelapse showing thermal expansion
Channel: partofthething
Date: 2020-04-05

Galileo Thermometers are fun and cool. This video explains how they work and shows with a timelapse video that the clear fluid surrounding the colorful floats expands as it reaches higher temperatures. The mass of displaced liquid decreases the buoyant upward force on each float, so gravity dominates and the floats drop in sequence as temperature rises. Lots of fun!