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In the mid-19th century aluminium was a precious metal. By the 1930s it was a bulk material, used in aircraft manufacture, electrical cables, kitchenware and motor cars. By 1950 its applications were...
Adrian Cowell’s award-winning 1970 documentary The Tribe That Hides From Man about the Kreen-Akrore Indians is now available on DVD. Dr Elizabeth Ewart of the University of Oxford has gone to Brazil to...
Examines three areas of natural resource use: the commercial and technical issues behind the recycling of aluminium cans, the processes by which raw cotton becomes a woven fabric, and water as a natural...
The programme examines the ways of removing oxygen or sulphur in order to extract metals from their ores. Includes footage from both the laboratory and from industrial processes, with the underpinning theory...
Suitable for KS3/4 students, this (2009) chapterised DVD looks at the chemical processes and chemical equations behind the manufacture and/or use of five common products in everyday use: · Soap - made from...
Looks at some of the environmental issues raised by the use of natural resources in the modern urban society. It contrasts a proposed recycling of aluminium drinks cans with the handling of water within a...
Examples of synthetic sapphires in use. The manufacturing process. Ammonium alum is reduced in a furnace to aluminium oxide. After sifting through fine gauze the powder is melted in an oxyhydrogen flame in a...
Twelve film clips, each covering a single chemical process, which describe how each process works, looking at raw materials, uses for the products, and the geographical siting of the plant. Topics are:...
For this production specimens of up to 8% pre-deformation of an aluminium-1%-magnesium alloy have been investigated in a transmission electron microscope using an acceleration voltage of 100 kV. The...
A study of the dynamic processes occurring in thin foils under stress observed at high magnification in the electron microscope.
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