This fascinating, functional instrument is the point at which science meets art. Four hundred years ago Galileo discovered that specifically weighted floating bubbles would predictably rise or sink in a liquid as the temperature of that liquid changed. These decorative glass reproductions of Galileo's discovery have glass floats precisely weighted in .006 gram increments suspended in a clear, environmentally safe, nontoxic liquid. Simply read the tag on the lowest floating bubble to read the temperature in degrees Fahrenheit.
Multi (Blue, Green, Red, Purple, Orange)
12", 5 spheres, 64F - 80F
15", 7 spheres, 66F - 84F
18", 7 spheres, 66F - 84F
Imprint area: maximum
Usually ships within: Usually ships in 2-3 business days