News tagged with polarization

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Size matters for creatures of cold polar waters

Scientists at the Universities of Liverpool, Plymouth, and Radboud, Netherlands, have challenged the view that giant animals are found in polar seas because of a superabundance of oxygen in cold water.

Jul 10, 2013
3 / 5 (5) 1 | with audio podcast

Researchers develop light transistor

TU Vienna has managed to turn the oscillation direction of beams of light – simply by applying an electrical current to a special material. This way, a transistor can be built that functions with light ...

Jul 08, 2013
4.9 / 5 (9) 1 | with audio podcast

Star Tau Boo's baffling magnetic flips

(Phys.org) —The first observations of the complete magnetic cycle of a star other than the Sun are proving a puzzle to astronomers. Tau Boötis, known as Tau Boo (τ Boo), is a yellowish star that is a ...

Jul 04, 2013
4.8 / 5 (13) 3 | with audio podcast

X-rays reveal fuel cells in action

(Phys.org) —Wouldn't it be great to have a magical "energy box" that could convert a wide array of fuels to electricity with high efficiency and lower emissions? Solid oxide fuel cells (SOFCs) show significant ...

Jun 03, 2013
5 / 5 (2) 0 | with audio podcast

Cracking the ice code

(Phys.org) —What happened the last time a vegetated Earth shifted from an extremely cold climate to desert-like conditions? And what does it tell us about climate change today?

May 20, 2013
3.8 / 5 (8) 2 | with audio podcast