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Technicolour Clips

  1. Perkin's Purple

    Duration: 03:37

  2. What effect does colour have in sports?

    Duration: 03:02

  3. Was Βι¶ΉΤΌΕΔr colour blind?

    Duration: 02:10

  4. Tetrachromats - The women with superhuman colour vision

    Duration: 03:03