Faraday's Butterfly Net Electricity & Magnetism_Circuits Hand-cranked Van de Graaff generator

Hand-cranked Van de Graaff generator with a 9

and lead with densities from 2

Acrylic bell-in-vacuum jar with an internal 4-6V DC electric bell that fades and falls silent as the enclosed air is removed

the shared mass isolating volume and density as the distinguishing variables across metals and polymers

and upper airway structures in a single anatomical plane

Faraday's Butterfly Net Electricity & Magnetism_Circuits Hand-cranked Van de Graaff generatorDemonstrates that charge resides only on the outer surface of a conductor by inverting the charged net inside out and showing the charge transferring to the new outside layer.