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Why is milk white and not green like grass?

20 Mar 2017

Questions about milk are always interesting because, after all, it is our first food. Milk is meant to be the only sustaining food during early life and therefore it must contain all the required...

Carmine Dye and the Cochineal Insect

15 Feb 2017

At least in a manner of speaking. When Hernan Cortez came to America in 1518 he was intrigued by the beautifully coloured Aztec fabrics, particularly the stunning reds. He asked the natives about...

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