Product Review
Overall height: 17" tall
Gold Tags
Limited 2 year manufacturer warranty
Temperature gradients of 4 degrees from 60 to 96 degrees Fahrenheit and is accurate to within 2.5 degrees.
- The Galileo thermometer consists of a sealed glass tube that is filled with liquid and several floating bubbles. The bubbles are glass spheres filled with a colored liquid mixture
- Attached to each bubble is a little metal tag that indicates a temperature. These metal tags are calibrated counterweights. The weight of each tag is slightly different from the others
- The bubbles are calibrated by adding a certain amount of fluid to them so that they have the exact same density
- After the weighted tags are attached to the bubbles, each differs very slightly in density (the ratio of mass to volume) from the other bubbles, and the density of all of them is very close to the density of the surrounding liquid
- As the temperature of the air outside the thermometer changes, so does the temperature of the liquid surrounding the bubbles. As the temperature of the liquid changes, it either expands or contracts, thereby changing its density
