Spouting Cylinder, Acyrlic - Snell'S Law Apparatus, Demonstrating Principles Of Snell'S Law, 2.3in (60mm) Diameter Pipe, 15.5in (400mm) Total Height, Includes: Demonstrate Snell'S Law From An Acrylic Pipe.
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