News tagged with electromagnetism

Explosive origins for cosmic dust

(Phys.org)—The European Space Agency's Herschel Space Observatory has produced an intricate view of the remains of a star that died in a stellar explosion a millennium ago. This new view provides further ...

Dec 18, 2012
4.7 / 5 (3) 1 | with audio podcast

Silver nanocubes make super light absorbers

Microscopic metallic cubes could unleash the enormous potential of metamaterials to absorb light, leading to more efficient and cost-effective large-area absorbers for sensors or solar cells, Duke University ...

Dec 06, 2012
not rated yet 0 | with audio podcast

At last, how many alien civilizations are there?

During the space age, 1961 was a special year: the Russian cosmonaut Yuri Gagarin became the first man to orbit Earth, while the American astronomer Frank Drake developed the now famous Drake Equation. This ...

Dec 03, 2012
4.1 / 5 (47) 294 | with audio podcast

Unified theory for skyrmion-materials

Magnetic vortex structures, so-called skyrmions, could in future store and process information very efficiently. They could also be the basis for high-frequency components. For the first time, a team of physicists ...

Mar 03, 2015
4.8 / 5 (4) 0

Transmitting wireless data on higher frequencies

Everything we do that requires a wireless connection uses the radio spectrum. We're able to harness radio waves to listen to music in the car or stream Netflix from the 4G network on our smartphones. Each ...

Jan 27, 2015
4 / 5 (3) 0

New light shed on electron spin flips

Researchers from Berlin Joint EPR Lab at Helmholtz-Zentrum Berlin (HZB) and University of Washington (UW) derived a new set of equations that allows for calculating electron paramagnetic resonance (EPR) transition ...

Jan 07, 2015
4.3 / 5 (4) 0

US village is cell phone free and loving it

In this rural speck of hyper-connected America, it's easier to hear a cow moo than a cell phone ring. That's because Green Bank is home to the world's most sensitive radio telescope, a device that catches the birth and death ...

Nov 13, 2014
3.6 / 5 (8) 0

A new generation of storage—ring

A bright synchrotron source that emits over a wide part of the electromagnetic spectrum from the infrared to hard X-rays is currently being built in Lund, Sweden. The MAX IV facility presents a range of technical ...

Oct 31, 2014
4.2 / 5 (5) 1