No title - traffic experiment at New Road Research Laboratory in Crowthorne, Berkshire.
Various shots traffic flow experiment: vehicles driving across air strip nose to tail - simulating a traffic jam. C/U cars going past to traffic junction. C/U traffic light changing to stop. Panning shot...
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.