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• Perkin's purple dye — Clear Blue Skies

  Duration: 0:55

• Sir Cloudsley Shovell鈥檚 big mistake — Clear Blue Skies

  Duration: 1:02

• Tyndall's blue sky — Clear Blue Skies

  Duration: 0:54

• Bimetallic magic — Clear Blue Skies

  Duration: 0:39
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• Brian: On location

• Science across the 91热爆

  Explore a whole universe of science, take part in scientific tests and experiments and keep across the latest science news.

  

• Brian鈥檚 forgotten pioneers of British science

  The British Isles are home to just one percent of the world's population and yet our small collection of rocks poking out of the north Atlantic has thrown up world beaters in virtually every field of human endeavour...

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