Quick and easy tool, for demonstrating thermal expansion, four bar combinations: Brass/Aluminum, Brass/Iron, Copper/Iron, and Brass/ Copper. Since each metal has a different coefficient of thermal expansion, they will create a unique curve when paired with a different metal
Moment Of Inertia Disc On Magnet, 17.5 Cm Dia. Plastic Disc Mounted On Ball Bearing And Magnetic Base, Plastic Disc Dia. 17.5 Cm Mounted On Ball Bearing And Magnetic Base Perforated With Hole At 1 Cm Interval On 12 Axes At 30 deg. Supplied With 6 Moveable Pins.