Eli5: How do thermometers work?

256 viewsOther

How do they know the temperature when they’re so tiny

In: Other

2 Answers

Anonymous 0 Comments

Liquids expand or contract depending on what their temperature is.

So, we fill a tube with liquid mercury, and then mark on the tube what the liquids volume is at different temperatures.

You are viewing 1 out of 2 answers, click here to view all answers.