Compound bar, Copper and Iron, Weight (lb): 5.8,Length (in): 15.7,Width (in): 12.6,Height (in): 3.1, Comprising a bar of copper and iron each 200 x 15 mm, riveted together, For demonstrating the differential expansion of two metals
Equilateral Prism, Material: acrylic, Refractive index close to optical glass, can produce a rainbow from a non-monochromatic light source such as sun light, Perfect for student use, which will not break or chip like glass, is a softer material, Size: 25mm length, 25mm face size
Equilateral Prisms 3pc set, 1in, 2in, and 4in lengths, Material: Acrylic, Each prism is individually wrapped to protect it Will create a rainbow with any standard light source (phone will work) -- use a dark piece of paper with a 1-2mm slit, Size: 25mm face size
Ballistics Car with Remote Trigger, demonstrates the independence of vertical and horizontal motions. It consists of a four-wheeled cart carrying a vertical tube with a spring-loaded piston inside. The tube is loaded with a ball and the cart is set in motion
Parallelogram Of Forces Apparatus, Apparatus Demonstrates The Relationship Between Forces Acting At A Point, Comprised Of: A Board 25.5in X 19.7in, Two Aluminum 50mm Diameter Pulleys On Clamps, Three Iron Nickel Plated Hangers, Twelve Slotted Weights
Large Needle Electroscope, 1.5lbs, 7.0x6.0x4.0 in, ideal for classroom demonstrations of electrostatic principles, A light-weight metal vane, used as a pointer in the electroscope. A transparent scale, provided to measure the angle of the deflection