News tagged with electrical current

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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 ...

Oct 01, 2013
4.7 / 5 (11) 0 | with audio podcast

Laser pulse turns glass into a metal

For tiny fractions of a second, quartz glass can take on metallic properties, when it is illuminated be a laser pulse. This has been shown by calculations at the Vienna University of Technology. The effect ...

Aug 26, 2014
4.3 / 5 (8) 3

The world's first photonic router

Weizmann Institute scientists have demonstrated for the first time a photonic router – a quantum device based on a single atom that enables routing of single photons by single photons. This achievement, ...

Jul 14, 2014
4.9 / 5 (31) 10

Relativity shakes a magnet

The research group of Professor Jairo Sinova at the Institute of Physics at Johannes Gutenberg University Mainz (JGU), in collaboration with researchers from Prague, Cambridge, and Nottingham, have predicted ...

Mar 03, 2014
4.6 / 5 (14) 0

Tiny generators turn waste heat into power

The second law of thermodynamics is a big hit with the beret-wearing college crowd because of its implicit existential crunch. The tendency of a closed systems to become increasingly disordered if no energy is added or removed ...

Sep 28, 2010
4.5 / 5 (10) 2 | with audio podcast