Buoyancy of Air

Title

Buoyancy of Air

Subject

Pneumatics

Description

Chemists, and other people who do careful weighings, know that we live at the bottom of a sea of air, and that a buoyant force equal to the weight of the air displaced by our bodies acts upward on us. Alas, the density of air is small, and the buoyant force is also small. To demonstrate this effect, a brass balloon is placed on one end of an equal arm balance. When the air surrounding the balloon is removed, the buoyant force is removed, and the balance tilts.

Source

Property of the W&L Physics & Engineering Department

Files

Buoyancy of Air.JPG
Date Added
December 7, 2011
Tags
Citation
“Buoyancy of Air,” Antique Scientific Instruments at Washington and Lee University, accessed September 21, 2017, http://physicsapparatus.omeka.net/items/show/44.