Kontaktní výroba kyseliny sírové

Symmetry is one of five shorts featured in the film "Mathematical Peep Shows." The collection was made by Charles and Ray Eames for the IBM Mathematica Exhibit which opened in 1961. The degree to which an object is symmetrical is illustrated by the number of different positions in which it can fit into a box of its shape.

The lecturer shows a microcinematographic sequence of spirochaetes and drawings of the gonoccus (the bacteria responsible for syphilis and gonorrhea). He then turns to an easel and begins to draw 'the road of health'; the cartoon takes this up in magic drawing, in a style that is highly reminiscent of the 'Giro the Germ' series made for the Health and Cleanliness Council a few years before.

The film twice states that it doesn't intend a moral injunction, but it clearly does with comments such as "our society... regards sexual intercourse outside marriage as irresponsible and possibly disastrous" and "you can use your knowledge with responsibility and real love or you can use it wantonly and with mere animal appetite". This is clearly marriage education not sex education.

After several farmyard analogies featuring chicks and calves, the well-spoken narrator and director of the film, Winifred Holmes, considers the subject of girls and how they reach adulthood and readiness for the 'important job of motherhood.

Educational short film

New discoveries reveal the deadly secrets of the Bermuda Triangle as experts use cutting-edge science and technology to investigate the strange disappearances in this mysterious place.

Tractor Ted takes us to see some amazing diggers and dumpers at work. The huge excavators are at work in the quarry, where we see them blasting rock and then down at the river clearing banks. Dave is working on his digger showing us different jobs he can use it for and the children have a tricky job trying to catch the lambs.

Educational film about drug addiction.