Titles read: "A BIG PULL - Lots of people are said to get on with the aid of a 'pull' - but here's one of the biggest pulls of all - as practised by the Canadian Mines Department."
M/S of man examine the steel prongs of a three inch rope. Several shots of the rope being tested...
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.