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Thursday, November 27, 2014

ScienceDaily: Engineering and Construction News

ScienceDaily: Engineering and Construction News


Heat-conducting plastic: 10 times better than conventional counterparts

Posted: 26 Nov 2014 02:16 PM PST

The spaghetti-like internal structure of most plastics makes it hard for them to cast away heat, but a research team has made a plastic blend that does so 10 times better than its conventional counterparts.

High-tech mirror beams heat away from buildings into space

Posted: 26 Nov 2014 10:38 AM PST

Engineers have invented a material designed to help cool buildings. The material reflects incoming sunlight, and it sends heat from inside the structure directly into space as infrared radiation.

Shaping the future of energy storage with conductive clay

Posted: 26 Nov 2014 10:26 AM PST

Materials scientists have invented clay, which is both highly conductive and can easily be molded into a variety of shapes and sizes. It represents a turn away from the rather complicated and costly processing -- currently used to make materials for lithium-ion batteries and supercapacitors -- and toward one that looks a bit like rolling out cookie dough with results that are even sweeter from an energy storage standpoint.

Engineers make sound loud enough to bend light on a computer chip: Device could improve wireless communications systems

Posted: 26 Nov 2014 09:44 AM PST

Engineering researchers have developed a chip on which both sound wave and light wave are generated and confined together so that the sound can very efficiently control the light.

Van der Waals force re-measured: Physicists verified nonlinear increase with growing molecular size

Posted: 26 Nov 2014 04:51 AM PST

Van der Waals forces act like a sort of quantum glue on all types of matter. Using a new measuring technique, scientists experimentally determined for the first time all of the key details of how strongly the single molecules bind to a surface. With an atomic force microscope, they demonstrated that the forces do not just increase with molecular size, but that they even grow disproportionately fast.

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