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Spin-orbit sum rule to speed up X-ray scattering research

A new theory developed by Prof Gerrit van der Laan, from the Science & Technology Facilities Council (STFC) and Diamond Light Source, and published this week in the journal Physical Review Letters, provides a powerful sum rule that scientists can use to explore the properties of novel materials, such as those used for spintronics devices.

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If Time Is Money Then Free Time Is Frustrating

“Time is money” sounds like an efficient strategy. But such a perspective could undermine your overall happiness, according to a study in the Journal of Experimental Social Psychology (PDF.) [More]

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Hovering not hard if you’re top-heavy, researchers find

Top-heavy structures are more likely to maintain their balance while hovering in the air than are those that bear a lower center of gravity, researchers at New York University's Courant Institute of Mathematical Sciences and Department of Physics have found.

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Zebra Stripes Clash with Insect Interest

How did the zebra get its stripes? One theory holds that stripes help confuse predators. But stripes might be primarily to protect zebras from ferocious…insects

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Close Super Bowl Boosts Ad At End

Advertisers will drop $3.5 million for a 30-second spot during Sunday’s Super Bowl. But to get the most bang for their buck, they might want to play their ad right after the game ends--not during it. Because if it's a close one, the time slot right after the final gun should have the most sway with viewers.

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Harnessing the predictive power of virtual communities

Scientists have created a new algorithm to detect virtual communities, designed to match the needs of real-life social, biological or information networks detection better than with current attempts. The results of this study by Lovro Šubelj and his colleague Marko Bajec from the University of Ljubljana, Slovenia have just been published in European Physical Journal B.

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Cosmology in a Petri dish

Scientists have found that micron-size particles which are trapped at fluid interfaces exhibit a collective dynamic that is subject to seemingly unrelated governing laws. These laws show a smooth transitioning from long-ranged cosmological-style gravitational attraction down to short-range attractive and repulsive forces. The study by Johannes Bleibel from the Max Planck Institute for Intelligent Systems in Stuttgart, Germany, and his colleagues has just been published in the European Physical Journal E.

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Dark-Dwelling Fish Converge On Blindness

When Mexican tetra fish moved into dark caves long ago, they evolved to deal with the dark by becoming albino…and going blind. And new research shows that the changes various cavefish populations went through occurred repeatedly--a massive, textbook example of convergent evolution. The study is in the journal BioMed Central Evolutionary Biology

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