There's an interactive orchestra, live videos from around the world, and a real robot that will draw your portrait in sand at the Science Museum in London.

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But Clarke seems as popular as ever with his public - a recent exhibition aout him at Science Museum in London was extended from three to 18 months by popular demand.

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"We have to develop the entrepreneurial spirit in the country, " Brown said in a speech at the London Science Museum, where he was announcing the new policies.

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Manufacturer Brother, which says it has made 5.9 million typewriters since its factory in Wrexham opened in 1985, has donated the last machine to London's Science Museum.

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