This is a polished anodized aluminum sphere which, when grounded, is used to receive the intense arc discharges from the Van de Graaff generator dome. The flexible grounding lead is 90cm long and has a banana plug at one end which connects to the base of the sphere and an alligator clip at the other end which connects to the ground post on the base of the generator.
Explore the wonders of wind power with this amazing kit!
Build your own windmill generator kit by recycling a plastic bottle!
A beautiful desk or bookshelf accessory for the reading fanatic in your family!
Buy Newton's Cradle or balance balls here! This classic science desk toy that will keep you amused and teach you physics.
Build a magnetic levitating train with this science fair project kit!
A massive mounted set of 100 rocks and minerals found in the US,