Road research laboratories - experimental stretch of road Colnbrook, Berkshire.
L/S Traffic along road with man in background. L/S Man taking notes. C/U Instruments. L/S Testing pumps in road. M/S Man walking beside machine. M/S Man pulling machine. C/U Wheels. C/U Machine drawing graph. L/S...
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.