Motor-Driven Van de Graaff Generator, 220,000V Science at Home_Chemical Science Nylon ball-bearing pulley with a

Nylon ball-bearing pulley with a bench-clamp fitting for edge-mounting on a worktable

pairing a six-step 0 to 12V AC line with a continuous 0 to 12V DC line through color-coded lab terminals

this Brownlee-pattern apparatus gives a clean visual proof of the 2:1 stoichiometry of water decomposition

and hinge-distance scales adjustable from 0 to 45 degrees

25-inch Atwood machine with two 2-inch blue-plastic pulleys on an aluminum rod

Motor-Driven Van de Graaff Generator, 220,000V Science at Home_Chemical Science Nylon ball-bearing pulley with aContinuously motor driven to supply a steady high voltage source, this silicone belt Van de Graaff generator demonstrates charge conservation, conduction, and ionization.