M/S two tables turning together, C/U hand making razor blades. Various shots as they move along a conveyor belt. A woman takes a tray to the testing room. They are checked under a special light then used to split a human hair seven times. C/U of...
A heavy train is used to test a bridge and an enormous locomotive is demonstrated.
Quality of seeds tested at station in Cambridge.
A look at methods of testing things from engineering parts to beer.
Goods containers are tested for strength and durability at Leatherhead, Surrey.
Kids test the strength of toys in Erith, Kent.
Acrobat testing mattresses. London
Army soldiers perform a variety of physical activities to test their clothing
Testing army cars.