2B35.20 Pull Up a Mercury Barometer

2B35.20 Pull Up a Mercury Barometer

Demo retired; reference only

Pull a barometer tube up out of a tall reservoir of mercury.

Video project is helpful in a large classroom.

An open pool of mercury sits in a stand about four feet above ground. The height of the mercury gleaming in a barometer tube extending above the pool is measured with a high-contrast ruler.

This close-up photo of the barometer tube shows the height of the mercury to be about 74 cm.

Location: Mercury Pool: Stand at the end of Aisle A; Tube: Hanging on peg board at end of Aisle CD