Sign up here to get weekday updates from The Weather Channel and our meteorologists.A barometer is a tool meteorologists use ...

Equipment: A Galileo's thermometer (a sealed liquid filled glass cylinder containing sealed glass floats labeled 18, 19, 20, 21, 22, 24 and 26 degrees C), a 4 liter ...

The first mercury barometer was created in the 1600s by an Italian physicist and mathematician Evangelista Torricelli. was inspired by Galileo Galilei, who built a thermometer that measured ...