Astronomers have used a high-energy burst of light from a distant galaxy to test the fabric of space and time. The work is the best test yet of attempts to create a 'theory of everything'. More Articles

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The path to Economic recovery is simple

The path to economic recovery is simple and the answer is as old as time itself.

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While the effort to detect gravitational waves is ongoing, the researchers have now used the LIGO apparatus to observe the oscillations of a 2.7 kg pendulum mode at a level close to its quantum ground state.

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What is time? No, really, what is it? A dimension of space-time, says relativity, but is it physical? Or just mental? Why does it seem to move forward and not back? Does the universe acknowledge the arrow of time that we experience? How big is time? Does our notion of "now" h …

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Using a technique called Pixel-lensing, a group of astronomers in Italy may have detected a planet orbiting another star. But this planet is unique among the 300-plus exoplanets discovered so far, as it and its parent star are in another galaxy. More Articles

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"Zipper structures break new ground on coupling photonics with micromechanics, and can impact the way we measure motion, even into the quantum realm," More Articles

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...people today carry around pocket-sized music players capable of holding thousands of songs, thanks to the discovery 20 years ago of a phenomenon known as the "giant magnetoresistance effect," which made it possible to pack more data onto smaller and smaller hard drives.

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Previous experiments have entangled the internal properties of particles, such as spin states, but this is the first time scientists have entangled the particles' pattern of motion. More Articles

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In nature, trees pull vast amounts of water from their roots up to their leaves hundreds of feet above the ground through capillary action, but now scientists at the University of Rochester have created a simple slab of metal that lifts liquid using the same principle—but does  …

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The laser process creates a unique array of nano- and micro-scale structures on the surface of a regular tungsten filament—the tiny wire inside a light bulb—and theses structures make the tungsten become far more effective at radiating light. More Articles

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A tentative first step towards an era of clean, almost limitless energy will take place today with the opening of a giant facility designed to recreate the power of the stars in an oversized warehouse in California.

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The lamp's filament is just 100 atoms wide. It is made from a single carbon nanotube. When lit, the itty bitty bulb can be seen with the unaided eye as a point of light, the scientists say. More Articles

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U.S. Navy researchers are asking two U.S.

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..the universe underwent an unimaginably brief but enormous growth spurt immediately after birth. The baby cosmos ballooned from one billionth of a trillionth of a hydrogen atom's diameter to that of a soccer ball within just 10-35 seconds...

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A new approach to trapping rainbows could lead to a form of computing that uses many different colours of light at once to convey information, according to an international research team. More Articles

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Faster-than-light particles, or "tachyons", may be fundamentally impossible, according to two mathematical physicists. If they're right, their new theory would also imply that time – seemingly one of the most fundamental facets of nature – is no more than a mirage.

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Stephen Hawking barely needs an introduction, but his recent direction does. He is packaging the universe for the younger generation. With his daughter Lucy Hawking, he has branched out into writing children's books. More Articles

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Research led by the University of Warwick has found a way to use doughnut shaped by-products of quantum dots to slow and even freeze light, opening up a wide range of possibilities from reliable and effective light-based computing to the possibility of "slow glass."

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.:⋅⋅⋅ SPACE ⋅⋅⋅:. Why is time so hard to comprehend? Should it be easier to comprehend than space?

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the physicists suggest using a pulsed magnetic field to spatially separate the particles' wave functions.

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"We've now shown that both 2-D and 3-D acoustic cloaks theoretically do exist," Cummer said.

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The authors of [an earlier] paper concluded that you could either have perfect invisibility at one color, or imperfect invisibility at three colors.

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In all previous work, it was assumed that one could squeeze indefinitely, simply tolerating the growth of uncertainty in the uninteresting direction. "But the world of polarization, like the Earth, is not flat," says Steinberg.

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The new laser phenomenon has some interesting features. For instance, in a conventional laser relying on low-momentum electrons, electrons often reabsorb the emitted photons, and this reduces overall efficiency.

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Comparing the values of cloaking and resonance frequencies, it is seen that the values are interleaved with each other: it may be shown that in general, when passive materials are employed, there is always a resonant peak between two neighboring cloaking frequencies, and vice ver …

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