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First Direct Proof of Hofstadter Butterfly Fractal Observed in Moiré Superlattices
May 15, 2013 Scientists have directly observed a rare quantum effect that produces a repeating butterfly-shaped energy spectrum, confirming the longstanding prediction of this quantum fractal energy structure ... > full story -
Catching Graphene Butterflies: Dramatically Changing Electronic Properties of World's Thinnest Material
May 15, 2013 A large international team of researchers has shown that when graphene placed on top of insulating boron nitride, or 'white graphene', the electronic properties of graphene change dramatically ... > full story -
Observation of Second Sound in a Quantum Gas
May 15, 2013 Second sound is a quantum mechanical phenomenon, which has been observed only in superfluid helium. Physicists have now proven the propagation of such a temperature wave in a quantum ... > full story -
Significant Improvement in Performance of Solar-Powered Hydrogen Generation
May 15, 2013 Using a powerful combination of microanalytic techniques that simultaneously image photoelectric current and chemical reaction rates across a surface on a micrometer scale, researchers have shed new ... > full story -
Squishy Hydrogels May Be the Ticket for Studying Biological Effects of Nanoparticles
May 15, 2013 A class of water-loving, jelly-like materials with uses ranges ranging from the mundane, such as superabsorbent diaper liners, to the sophisticated, such as soft contact lenses, could be tapped for a ... > full story -
Making Frequency-Hopping Radios Practical
May 15, 2013 New hardware could lead to wireless devices that identify and exploit unused transmission frequencies, using radio spectrum much more ... > full story -
Cotton Offers a New Ecologically Friendly Way to Clean Up Oil Spills
May 15, 2013 With the Deepwater Horizon disaster emphasizing the need for better ways of cleaning up oil spills, scientists are reporting that unprocessed, raw cotton may be an ideal, ecologically friendly ... > full story -
Friction in the Nano-World: Physicists Discover a New Kind of Friction
May 15, 2013 Whether in vehicle transmissions, hip replacements, or tiny sensors for triggering airbags: The respective components must slide against each other with minimum friction to prevent loss of energy and ... > full story -
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Engineers Design, Test Taller, High-Strength Concrete Towers for Wind Turbines
May 15, 2013 Engineers have designed and tested a concept for concrete towers to replace the steel towers used for wind turbines. The concrete towers could be a practical way to raise turbine towers from today's ... > full story -
Storage Power Plant on the Seabed
May 15, 2013 A group of scientists aims to store electricity at the bottom of the sea. The energy will be stored with the help of high water ... > full story
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