Titles read: '"Locks, bolts, and - - " other things of other days. Filmed with the co-operation of the Science Museum, South Kensington.'
Several shots of an early safe, showing the intricate locking mechanism inside, and a huge modern safe being opened.
We see Hook's...
Story following the growth of a chick inside an egg and film of it hatching.
Mathematical and scientific ways of dividing things into sections.
New electronic microscope is used at the Institute of Physics at Charles University in Prague.
Mass production of telescopes in the Crimea
Forensic tests on a man's jacket using cellotape to take particles off it.
Large complex system of metal and glass structures which go to make up this microscope.
Australian item showing short history of microscope.
Russian microscope used by students in London