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Open University

on BBC Two England

11.55 Density and Viscosity in Mineral Extraction
Once excavated, an ore has to go through many stages of purification. This programme shows how minerals can be extracted and separated by utilising their different densities and viscosities.
12.20 Psychology: Cognitive Maps
Three people who live and work around Shepherd's Bush in London talk about and demonstrate their personal maps of the area.

BBC Two England

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