In urban environments water plays many roles. It is used for drinking, cooking, washing, gardening, parks, recreation, sanitation, and manufacturing. On coastlines and where...
Why is it so important that we focus on cities in talking about 21st century technology challenges? There are 3 reasons:
Demographics
Economics
Revolution
Demographics - As we...
Every cellphone uses 42 different minerals in the manufacturing process. This includes bauxite, beryllium, copper, gold, iron, limestone, silica, silver, talc, wollastonite and many...
Is drug addiction a disease? It may start with a voluntary sampling of a cigarette, an amphetamine, a stimulant, a depressant....but what eventually happens...
