Van De Graaff Generator Hand-Driven 1224 Accuracy ±2%

Accuracy ±2%

and the reliability of the mechanism ensures that ticker-tape experiments are no longer hit and miss

This set of assorted blindfolds is ideal for teachers looking to enhance sensory activities

24 x Playground balls (135 and 165mm)

Children can learn about handling money and giving change as they move around the playing board using play money to buy all kinds of items

Van De Graaff Generator Hand-Driven 1224 Accuracy ±2%The discharge sphere is supported on a pivoted arm with a handle and is attached to the top of the driving wheel pillar. For connecting accessories, a 4mm socket is provided at the top of the large sphere, and a 4mm earth socket is drilled in the handwheel pillar base. Sparks in excess of 50mm in length are easily obtained at a slow rate of turning (200 rev min) and the apparatus is tolerant of moisture and dust. Diameter of dome: 200mm. Diameter of