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...Open University takes us on a visit to Cornwall to follow grains of sand on their journey from the high moorland to the sea shore. Back in the lab, he demonstrates some techniques for looking in detail at samples of sand. The album draws on material originally created to support The Open University course Exploring Science... Exploring sedimentary processes A brief...

...Open University's Jennie Lee building strives to answer this question. This video takes a look behind-the-scenes of the project, which involves an artistic installation of grey and orange balloons which have been produced in the building to signify the number of people using the lift or taking the stairs. The grey balloons represent the stairs, and the orange balloons,...

...open end at the bottom. This is lowered into the induction melted metal. Vacuum is applied, and metal is transferred uphill, into the mould. [Diagram of Hitchiner Process ] Chandler-Lamb Vacuum (CLV) – Hitchiner Process Similar to CLA process, except that a double vacuum chamber is used, for which it is difficult to balance the control of pressures. Argon is allowed...