Search results for quanta

Business Feb 14, 2012

Apple chief says factory labor under scrutiny

Apple chief executive Tim Cook said Tuesday that ensuring safe working conditions at plants making its coveted gadgets is a priority, as an audit of a key supplier continued in China.

Business Feb 13, 2012

Apple shares close over $500 (Update)

Apple's stock Monday topped $500 for the first time on Wall Street even as a probe started looking into work conditions at a Chinese factory that cranks out the California company's coveted gadgets.

General Physics Feb 8, 2012

Transparent iron? For the first time, an experiment shows that atomic nuclei can become transparent

At the high-brilliance synchrotron light source PETRA III, a team of DESY scientists headed by Dr. Ralf Röhlsberger has succeeded in making atomic nuclei transparent with the help of X-ray light. At the same time they ...

Quantum Physics Jan 26, 2012

Speed limit on the quantum highway

(PhysOrg.com) -- Physicists at the Max Planck Institute of Quantum Optics have measured the propagation velocity of quantum signals in a many-body system.

Quantum Physics Jan 24, 2012

Rice lab mimics Jupiter's Trojan asteroids inside a single atom

Rice University physicists have gone to extremes to prove that Isaac Newton's classical laws of motion can apply in the atomic world: They've built an accurate model of part of the solar system inside a single atom of potassium.

General Physics Dec 18, 2011

A 50-year quest to isolate the thermoelectric effect is now over: Magnon drag unveiled

In a paper published in Nature Materials, a group of researchers at the Catalan Institute of Nanotechnology (ICN, Spain) led by Prof. Sergio O. Valenzuela reports the observation of the magnon drag. This work ends a 50-year ...

General Physics Dec 15, 2011

Finnish team devise nanomechanical microwave amplifier with near least possible noise generation

(PhysOrg.com) -- A team of Finnish physicists has developed a novel way to amplify a microwave signal that unlike other amplifiers, produces noise that is just barely above that which is necessary due to the laws of quantum ...

General Physics Nov 6, 2011

Kilogramme faces quantum diet after weight problem

The guardians of the world's most important standards of weights and measures have turned to the weird universe of quantum physics to try to resolve a dilemma.

Astronomy Nov 3, 2011

9 new gamma pulsars

Pulsars are the lighthouses of the universe. These compact and fast-rotating neutron stars flash many times per second in the radio or gamma-ray band. Pure gamma-ray pulsars are extremely difficult to find despite their high ...

Business Oct 27, 2011

Patents emerge as significant tech strategy

It seems not a week goes by these days without news of another patent battle or announcement: Microsoft reaching licensing agreements with various device manufacturers. Apple and various handset manufacturers filing suits ...

page 26 from 34