Electrostatic loudspeakers work by the attraction ... The transformer is an example with plenty of scope for stretching your budget. Audio transformers are expensive at the best of times.

These sparks can reach around 10cm in length. Lightning bolts are an example of a very large electrostatic spark and they transfer enormous amounts of charge. The sparks that jump between the ...

Thomson's contributions to electro-magnetic science on the very highest level. Reprint of Papers on Electrostatics and Magnetism. By Sir W. Thomson, Fellow of St. Peter's College, Cambridge ...