Dowsing for electric fields in liquid crystals

You may not know it, but you probably spend several hours a day looking at nematic liquid crystals; they are used in virtually every smartphone, computer and TV screen. They are liquids composed of elongated molecules, which ...

Chirality yields colossal photocurrent

A recently discovered Weyl semimetal delivers the largest intrinsic conversion of light to electricity of any material, an international team lead by a group of Boston College researchers reports today in the journal Nature ...

First solar-powered wireless charging station for electric bikes

On Wednesday, 12 October, Executive Board President Tim van der Hagen, Dean of the Faculty of Electrical Engineering, Mathematics and Computer Science Rob Fastenau, Head of the Department of Electrical Sustainable Energy ...

World's most powerful electrical testing system unveiled

Florida State University's Center for Advanced Power Systems has unveiled a new 24,000-volt direct current power test system, the most powerful of its kind available at a university research center throughout the world.

Electric fish may have switched from AC to DC

Two very similar species of Amazonian electric fish share a key difference: One uses direct current (DC) and the other alternating current (AC), according to research that formally describes the two species for the first ...

Swiss firm says its new switch to aid green energy (Update)

A Swiss engineering group said Wednesday it has developed a new circuit breaker that will help utilities transfer power over longer distances, making for more efficient and reliable electric supplies.

Solar inverters: Losses are cut in half

A switching trick makes it possible to cut the losses of a series-production inverter in half and increase the efficiency from 96 to 98 percent. The HERIC-topology makes it possible to achieve a world-record efficiency of ...

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