Have you ever owned a galalelo thermometer? It’s a neat piece of artwork. Even cooler by how the properties of mass and volume contribute to this artwork.
Reading a Galileo Thermometer
Each sphere has a temperature indicating medallion. Depending on the actions of the spheres, the temperature is read in a number of ways. If there is a sphere or globe floating mid way, the medallion says the temperature. If you have a group of spheres at the top and a group of spheres at the bottom, you take the lowest one on the top (say 72) and the highest one on the bottom (say 76), the temperature is the average of the two. Or add the two together (148) and divide by 2 equals 74. If all spheres are floating, the temperature is below the lowest sphere. If all the spheres are at the bottom, the temperature is above 84. And some are read by the lowest floating sphere. Normally, it is the lowest medallion at the top.
A great gift item for anyone one who loves the unique, enjoys filling their surroundings with beautiful, useful and conversational pieces, and/or simply enjoys the mesmerizing piece of history.