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ALUMINIUM was once more costly than gold. Napoleon III, emperor of France, reserved cutlery made from it for his most favoured guests, and the Washington monument, in America’s...
The sun breaks through the clouds – and surfaces start cleaning themselves! It may sound like magic, but in fact it’s all thanks to the addition of titanium dioxide molecules....
Buildings that eat smog? Alcoa, a maker of aluminum products, introduced an architectural panel Thursday that it says not only cleans itself but also the air around it.The aluminum panel...