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.
A massive mounted set of 100 rocks and minerals found in the US,
Experience this sphere powered by the sun!
Is it a demonstration of a scientific law or a work of art?
Build over 60 projects with this deluxe version of the Snap Rover kit!
View the glory of space with this hi-tech telescope set!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!