reflection and refraction demonstrator, 16cm diameter acrylic water tank has a 360 degree scale and a moveable arm carrying a laser activated by a push-button, Thumb screws on the side of the laser harness can be adjusted to finely position the laser beam
Manometer without Stopcock, to highlight the variation of pressure in a liquid with depth. It consists of a pressure capsule of 35 mm placed in a bent steel tube, measured by a pressure gauge mounted on a graduated support. Includes beaker