What does that mean that the thermometer is broken the mercury is stuck at the bottom?

What does that mean that the thermometer is broken the mercury is stuck at the bottom?

How to Use a Mercury Thermometer

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Answers (1)

Answer 1
November, 2020
A swelling, or bulb, at the bottom of the thermometer stores the mercury used in calculating temperature readings. As temperatures increase, mercury moves out of the bulb's reservoir. As temperatures decrease, the mercury has some place to go as it recedes back into the bulb.

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