1890's Antique Welch Barascope Tester instrument Vtg antique Lab Tool Atmosphere
The baroscope consists of a small balance with arms that support, at one end, a sealed hollow cylinder and, at the other, a movable weight. The entire apparatus must be enclosed within a vacuum chamber. This instrument is used to investigate the effect experienced by objects submerged in gases. In this case, the effect of the buoyant force on a sealed cylinder at low pressure due to the presence of the atmosphere can be studied
selling as pictured.
more than welcome to pick up at shop in butler pa & save shipping.
121225 cg