Producing single photons from a stream of single electrons

Researchers at the University of Cambridge have developed a novel technique for generating single photons, by moving single electrons in a specially designed light-emitting diode (LED). This technique, reported in the journal ...

Does living near wind turbines negatively impact human health?

Wind turbines are a source of clean renewable energy, but some people who live nearby describe the shadow flicker, the audible sounds and the subaudible sound pressure levels as "annoying." They claim this nuisance negatively ...

Asymmetric sound absorption lets in the light

If you've ever lived in an apartment building or stayed in a hotel room, you are probably familiar with the inconvenience of inadequate sound absorption. Acoustic absorption refers to the absorption of sound energy by a material. ...

Support for tidal energy is high among Washington residents

Puget Sound is one of the best places in the United States to capture energy from tides. As water in the Sound rises and falls twice daily at high and low tide, strong underwater currents move swiftly in the narrow regions ...

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