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How to read a thermometer

A. The one with the lowest temperature in the floating ball is the current ambient temperature.

B. If all the balls float on top of the thermometer, the current temperature is lower than the lower limit of the measurement range.

C. If all the balls are at the bottom of the thermometer, the current temperature is higher than the upper limit of the measurement range.

Right-hand example

In the figure floating 32 ° C, 30 ° C, 28° C, read the lowest temperature, the current temperature is 28° C

The GALILEOTHERMOMETER is a thermometer made of a glass cylinder, a clear liquid, and weights of varying densities. When the temperature changes, the density of the liquid changes, causing the suspended weight to move up and down until it is the same density as the surrounding liquid. The least dense weights will be at the top and the tallest at the bottom. Each weight is attached to a metal disc engraved with a number, and when reading the temperature around it, look for the tag temperature that has the lowest value suspended above it.