Pasteurised Milk

May 11, 2012 by

One thousand bacteria laid end to end would cross the head of a pin Microbes are everywhere....

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Cement and Concrete

Mar 16, 2012 by

Concrete is not a modern material. Did you know the Romans used it? But who discovered it and how long ago was it used?

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Penicillin – Wonder drug

Oct 14, 2011 by

The story of the miracle drug that we tend to take for granted today … Penicillan.

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