News tagged with raw materials

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Recycling the next generation

About 70 billion tons of raw materials are extracted world wide annually. That is twice as much as at the end of the 1970s. This trend is continuing – even with finite resources. One way to have enough ...

dateMay 01, 2014 in Engineering
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Drive toward a viable 'City of the Future'

Cities consume energy and raw materials, produce waste and pollutants, and overload their transportation systems. Fraunhofer researchers have now combined forces in the innovation network German for "Morgenstadt" (or "City ...

dateJul 12, 2012 in Energy & Green Tech
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Biorefinery makes use of every bit of a soybean

The corn industry produces almost 4,000 products from every bushel. Oil refineries produce fuels and ingredients for an estimated 6,000 products with a thoroughness that actually squeezes 44 gallons of products from every 42-gallon barrel of crude. ...

dateAug 22, 2012 in Biotechnology
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The limits of the productive capacity of ecosystems

In a letter to Science published last week, Karl-Heinz Erb from the Institute of Social Ecology Vienna and a number of co-authors discuss how the measurement of biomass production and consumption can be used to gain a bett ...

dateDec 19, 2012 in Ecology
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Sustainable algae cultivation making headway

Four years after the first optimistic calculations, the experimental cultivation of algae appears to be meeting expectations. Production costs have been more than halved, while the profit made on some crop components already ...

dateJun 11, 2014 in Other
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Deep astrophoto of LDN 673

What a stunning view of this dark region of space! This image, by astrophotographer Callum Hayton shows LDN 673, a molecular cloud complex that lies in the constellation Aquila. This region is massive—around ...

dateAug 05, 2014 in Space Exploration
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Recycling orbital satellites

No matter how painstakingly we choose the materials to build satellites, once a mission is over they are just so much junk. But what if one day they could be recycled in space for future missions – perhaps ...

dateNov 25, 2013 in Space Exploration
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