Robert Van De Graaff 2025 Battery. A van de graaff generator is a machine which uses a moving belt to accumulate very high electrostatic voltages on a hollow metal sphere. 16, 1967, boston, mass.) was an american physicist and inventor of the van de graaff.

The american physicist, dr.robert jemison van de graaff invented the van de graaff generator in 1931. Van de graaff, an american physicist.