Some may be surprised to learn that we haven't yet found every colour and pigment.
Scientists are still developing new pigments, with the last major inorganic pigment to be discovered in 2009 – YInMn Blue, a near perfect shade of blue.
Kevin Milne joined Jack Tame to chat about the world of pigments and the ongoing hunt for the "perfect red".
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Kate Hall: Raising environmentally conscious kids without overwhelming them
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