Blog Profile / Physorg Features


URL :http://www.physorg.com/
Filed Under:Academics / General Science
Posts on Regator:695
Posts / Week:2.1
Archived Since:April 9, 2010

Blog Post Archive

What's the best way to charge millions of electric vehicles at once?

(Phys.org)—About 350,000 plug-in electric vehicles (EVs) have been sold in the US from 2008—when they first entered the market—to mid-2015. Although EVs still represent a small fraction of the country's 250 million total vehicles, the continual increase in sales suggests that EVs will become even more popular over the next few decades. Show More Summary

Most precise test of Lorentz symmetry for the photon finds that the speed of light is indeed constant

(Phys.org)—The laws of physics are the same no matter which direction you're facing or how fast you're moving—it's such an intuitive concept that most people probably don't know that it has a name: Lorentz symmetry. Over the past several...Show More Summary

Chameleon-inspired stretchable e-skin changes color when touched

(Phys.org)—Researchers at Stanford University have fabricated a stretchable, color-changing, pressure-sensitive material–basically the closest thing yet to an artificial chameleon skin. Touching the new electronic skin (e-skin) withShow More Summary

New limit to the Church-Turing thesis accounts for noisy systems

(Phys.org)—The question of what a computer is capable of, and what it is not, has intrigued computer scientists since the 1930s, when Alonzo Church and Alan Turing began investigating the capabilities and limits of computers. In a new study, researchers have explored the computing abilities of noisy physical systems, which are those that are disturbed by random fluctuations.

New law implies thermodynamic time runs backwards inside black holes

(Phys.org)—Black holes are known to have many strange properties, such as that they allow nothing—not even light—to escape after falling in. A lesser known but equally bizarre property is that black holes appear to "know" what happens in the future in order to form in the first place. Show More Summary

Quantum computer that 'computes without running' sets efficiency record

(Phys.org)—Due to quantum effects, it's possible to build a quantum computer that computes without running—or as the scientists explain, "the result of a computation may be learned without actually running the computer." So far, however,...Show More Summary

Magnon, meet phonon: Magnetoelastic waves can drive magnetic bubbles through photoexcitation

(Phys.org)—Research in spintronics (short for spin transport electronics – the study of the electron's intrinsic spin and associated magnetic moment in solid-state devices) continues to be focused on methods for exercising precise control...Show More Summary

Researchers show that an iron bar is capable of decision-making

(Phys.org)—Decision-making—the ability to choose one path out of several options—is generally considered a cognitive ability possessed by biological systems, but not by physical objects. Now in a new study, researchers have shown that...Show More Summary

Scientists grow high-quality graphene from tea tree extract

(Phys.org)—Graphene has been grown from materials as diverse as plastic, cockroaches, Girl Scout cookies, and dog feces, and can theoretically be grown from any carbon source. However, scientists are still looking for a graphene precursor...Show More Summary

Scientists fabricate hexagonal silicon, potentially leading to light-emitting semiconductors

(Phys.org)—Virtually all semiconductors used in today's electronic devices are made of silicon having a cubic crystal structure, as silicon naturally crystallizes in the cubic form. In a new study, researchers have fabricated silicon...Show More Summary

Tiny gears increase light-to-work conversion efficiency by five orders of magnitude (w/ video)

(Phys.org)—Scientists have demonstrated that pinwheel-shaped microgears floating on a liquid surface can rotate at speeds of up to 300 r.p.m. when illuminated by an ordinary LED. This light-driven motion, which arises because the light...Show More Summary

Heart-shaped Li-ion battery printed on a cup shows batteries can be printed almost anywhere

Scientists have developed a new technique that can print batteries on almost any surface, which is expected to be essential for future flexible electronics such as roll-up displays, smart electronic clothing, and Google Glass-type devices. Show More Summary

Printable holograms could make holograms more widespread

(Phys.org)—Holograms have a wide variety of applications, from 3D displays to data storage, but the potential applications are currently limited by the complexity and cost of hologram fabrication. In an attempt to simplify the hologram...Show More Summary

For faster battery charging, try a quantum battery?

(Phys.org)—Physicists have shown that a quantum battery—basically, a quantum system such as a qubit that stores energy in its quantum states—can theoretically be charged at a faster rate than conventional batteries. This "quantum speedup"...Show More Summary

Scientists demonstrate first color-tunable and first graphene-based LED

(Phys.org)—Currently, all light-emitting diodes (LEDs) emit light of only one color, which is predefined during fabrication. So far, tuning the color of light produced by a single LED has never been realized, despite numerous attemp...

Scientists harvest energy from beam's self-induced, self-sustaining vibrations in airflow

(Phys.org)—In an attempt to harvest the kinetic energy of airflow, researchers have demonstrated the ability to harvest energy directly from the vibrations of a flexible, piezoelectric beam placed in a wind tunnel. While the generalShow More Summary

Macroscopic quantum phenomena discovered in ice

(Phys.org)—Scientists have discovered an anomaly in the properties of ice at very cold temperatures near 20 K, which they believe can be explained by the quantum tunneling of multiple protons simultaneously. The finding is a rare instance...Show More Summary

Scientists propose 3D graphene-like 'hyper-honeycomb' structures

(Phys.org)—Scientists have proposed a new family of structures that are three-dimensional (3D) variations of graphene, the simplest example of which is called a "hyper-honeycomb." If the proposed structures can be experimentally realized, the new ways to arrange carbon atoms would add to the ever-growing number of new carbon allotropes. Show More Summary

Death by Design? Spatial models show that natural selection favors genetically-limited lifespan as a lineal benefit

(Phys.org)—Standard evolutionary theories of aging and mortality, being based on mean-field assumptions – which analyze the behavior of large and complex stochastic models by studying a simpler model – conclude that programmed mortality resulting from natural selection is impossible. Show More Summary

Fastest-ever flexible diode provides 'last missing piece' needed to realize bendable phones

(Phys.org)—While there are hints that Samsung and LG are developing flexible phones that can fold, roll up, and even be stretched into larger screens, there are still some obstacles to overcome before such bendable phones become a reality. Show More Summary

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