News tagged with waste material

Getting more electricity out of solar cells

(Phys.org) —When sunlight shines on today's solar cells, much of the incoming energy is given off as waste heat rather than electrical current. In a few materials, however, extra energy produces extra electrons—behavior ...

dateMay 07, 2014 in Materials Science
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Green engineering for waste management

"Green engineering" is based on the idea of designing, selling and using processes and products that are technically and economically viable while, at the same time, minimizing pollution, as well as health ...

dateApr 01, 2014 in Energy & Green Tech
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Urban bees using plastic to build hives

Once the snow melts, Canada's bee population will be back in business—pollinating, making honey and keeping busy doing bee things. For at least two urban bee species, that means making nests out of plastic waste.

dateFeb 11, 2014 in Plants & Animals
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Creating electricity with caged atoms

Clathrates are crystals consisting of tiny cages in which single atoms can be enclosed. These atoms significantly alter the material properties of the crystal. By trapping cerium atoms in a clathrate, scientists ...

dateSep 22, 2013 in Condensed Matter
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