Full titles read: "3,000,000 Volts! Once upon a time a million volts was looked upon with awe - Then 2,000,000 became the aim. Here's the latest 3,000,000 volts of --------!" (timecode obscures title.)
United States of America.
C/U of a man in glasses as he says the demonstration we...
Experiments using electricity to shatter different kinds of materials.
A large power press crushes a tree trunk, a watch face and a riveted joint.
Footage of Scientist experimenting with coal dust in laboratories.
Machines which make "man-made lightning" are demonstrated.
Harmonograph recording two or more connected movements is presented at G.W.R Show.
Proposals for construction 'perpetual motion' machines - none of them works.
Road safety campaign for children in London.
Ghostly white shapes emerge against a black background - no soundtrack.