Pascals Law Apparatus (Weinholds)

(OLD MODEL) Demonstrates that the pressure of liquids varies with the depth of liquid column and is independent of the shape or size of the vessel. Comprising a base with aperture on the underside and on top of which may be attached any one of the set of 4 glass vases having different shapes/sizes but identical bottom openings. A lever arm pivoted to the vertical support rod has a pressure disc on one end to close the aperture and a counterpoise pan. A vertically adjustable index pointer provided for adjuststing liquid level in the vases. Complete apparatus mounted on a stable base.