Thought for the month

“There is nothing noble in being superior to some other man. The true nobility is in being superior to your previous self.” Probably W.L. Sheldon, US lecturer on ethics (1858 – 1907) rather than Ernest Hemingway.

Wednesday, 27 April 2016

Clean with nanoparticles

Nanoparticle-coated textiles clean themselves with sunlight

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