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Search results for time-reversal symmetry

General Âé¶¹ÒùÔºics Jun 14, 2014

2014 World Cup ball has better aerodynamics: NASA

The official 2014 World Cup game ball should make players happy, NASA said after its own aerodynamics testing showed the new design avoided the pitfalls of the unpopular 2010 version.

General Âé¶¹ÒùÔºics Apr 9, 2014

One kind of supersymmetry shown to emerge naturally

(Âé¶¹ÒùÔº) —UC Santa Barbara physicist Tarun Grover has provided definitive mathematical evidence for supersymmetry in a condensed matter system. Sought after in the realm of subatomic particles by physicists for several ...

Optics & Photonics Apr 6, 2014

Groundbreaking optical device could enhance optical information processing, computers

At St. Paul's Cathedral in London, a section of the dome called the Whispering Gallery makes a whisper audible from the other side of the dome as a result of the way sound waves travel around the curved surface. Researchers ...

Bio & Medicine Mar 20, 2014

A layered nanostructure held together by DNA

(Âé¶¹ÒùÔº) —Dreaming up nanostructures that have desirable optical, electronic, or magnetic properties is one thing. Figuring out how to make them is another. A new strategy uses the binding properties of complementary ...

General Âé¶¹ÒùÔºics Feb 26, 2014

Fusion, and friction, and fields! Oh, my! The rich and ubiquitous world of fluid dynamics

Fluid dynamics – a subset of the area of physics known as fluid mechanics – is concerned with the motion, or flow, of liquids and gases. Within fluid dynamics, a vortex is a region within a fluid where the flow is essentially ...

General Âé¶¹ÒùÔºics Jan 30, 2014

Engineers build first nonreciprocal acoustic circulator: A one-way sound device

A team of researchers at The University of Texas at Austin's Cockrell School of Engineering has built the first-ever circulator for sound. The team's experiments successfully prove that the fundamental symmetry with which ...

Cell & Microbiology Dec 23, 2013

"Social" bacteria cooperate to hunt for food and survive under harsh conditions

When considering the behavior of bacteria, the word "social" doesn't often come to mind.

General Âé¶¹ÒùÔºics Nov 14, 2013

Researchers find a way to stabilize the magnetic moment of a single holmium atom

(Âé¶¹ÒùÔº) —A team of physicists working at Karlsruhe Institute of Technology in Germany, has developed a way to cause the magnetic moments of individual holmium atoms placed on a conductive metallic base to survive for ...

Condensed Matter Nov 5, 2013

A new topological insulator breaks symmetry, and that's a good thing

(Âé¶¹ÒùÔº) —Scientists working at SLAC, Stanford, Oxford, Berkeley Lab and in Tokyo have discovered a new type of quantum material whose lopsided behavior may lend itself to creating novel electronics.

Optics & Photonics Oct 17, 2013

Researchers build a working optical diametric drive

(Âé¶¹ÒùÔº) —A team of physicists working at the University of Erlangen-Nuernberg in Germany has built a working optical diametric drive. In their paper published in Nature Âé¶¹ÒùÔºics, the team describes how they built a two-loop ...

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