News tagged with temperature difference

Solving a mystery of thermoelectrics

Materials that can be used for thermoelectric devices—those that turn a temperature difference into an electric voltage—have been known for decades. But until now there has been no good explanation for ...

Apr 29, 2014
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Temperature differences give rise to electricity

More than half of today's energy consumption is squandered in useless waste heat, such as the heat from refrigerators and all sorts of gadgets and the heat from factories and power plants. The energy losses ...

Nov 09, 2011
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Moon's shadow, like a ship, creates waves

During a solar eclipse, the Moon's passage overhead blocks out the majority of the Sun's light and casts a wide swath of the Earth into darkness. The land under the Moon's shadow receives less incoming energy ...

Oct 05, 2011
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Weighing gas with sound and microwaves

NIST scientists have developed a novel method to rapidly and accurately calibrate gas flow meters, such as those used to measure natural gas flowing in pipelines, by applying a fundamental physical principle: ...

Jan 26, 2015
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Men perspire, women glow

Women have to work harder than men in order to start sweating, while men are more effective sweaters during exercise, according to new research published in the journal Experimental Physiology.

Oct 08, 2010
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