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A century ago it was ‘proved’ that only four colours were needed to colour a map. Kempe’s proof of the four-colour theorem and the counter-example by Heawood are presented in a dramatised...
Investigates the nature of colour and of some pigments, the substances that give rise to colour, by examining a 16th-century Italian painting.
Series examining the influences of colour on our lives.
Follows a link between the cells involved in human colour vision and a rather unusual bacterium from the Dead Sea. Dr Jim Bowmaker, Institute of Ophthalmology, London, describes the techniques for looking at...
Deals with colour theory and equilibria of both indicators and transition metal complexes, through spectrophotometric study of their colours. The use of both simple and complex spectrophotometers is...
Shows applications of colour chemistry to textiles and fashion and also to the filmless camera. A chemist analyses old paintings as an aid to conservation and another developes water-borne gloss paint for...
Part 1: The nature of glass, how it is made and shaped into a vast range of designs - from primitive beads to rococo Venetian glass. The way the first crude glass was formed and how this same underlying...
Looks at theories of colour perception. The tradition theory holds that humans see colour because there are cones in the eye which analyse the red, green and blue components of objects. Dr Edwin Land, who...
Shows the important role of dyes and pigments in everyday life. Looks at the scientific basis of additive and substractive colour. Uses a simple pictorial approach based on quantum theory to demonstrate how...
The early drawings and oil paintings of Georges Seurat (1859-1891) explored the qualities of materials and light. From his studies of colour and perception he developed his theory of divisionism and the...
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