Blog Profile / Physorg Features

Filed Under:Academics / General Science
Posts on Regator:589
Posts / Week:2.2
Archived Since:April 9, 2010

Blog Post Archive

Synthetic biology, genetic engineering and you: Two-component signaling pathways as elements in synthetic circuit design

( —Two of the most exciting areas of science and technology, synthetic biology and genetic engineering, have just taken a step towards a brave new future in which large-scale synthetic biological circuits composed of bioengineered...Show More Summary

Electric vehicles could stabilize large disturbances in power grid

( —Today when an electric vehicle is plugged into the grid, it's almost always in charge mode, meaning it consumes power. But it's also possible for an electric vehicle to operate in discharge mode, in which it acts as a giant battery and injects power into the grid when needed. Show More Summary

Multiphysics invisibility cloak manipulates both electric current and heat

Invisibility cloaks can make objects invisible not just to light in the visible part of the spectrum, but to many other physical excitations. These include acoustic waves, matter waves, heat flux, and infrared or ultraviolet electromagnetic (EM) waves. But so far, any single invisibility cloak can manipulate only one of these types of excitations.

Researchers create 3-D stereoscopic color prints with nanopixels

( —By designing nanopixels that encode two sets of information—or colors of light—within the same pixel, researchers have developed a new method for making 3D color prints. Each pixel can exhibit one of two colors depending on the polarization of the light used to illuminate it. Show More Summary

Physicists study magnetism with the roles of position and momentum reversed

( —Normally, the strength of a magnetic field increases as you get closer to a magnet and decreases as you move further away—a concept easily understood when placing magnets near a refrigerator, for instance. But recent research...Show More Summary

Carbon nanotube film restores light sensitivity to blind retinas

( —Light striking the retina in the back of the eye is the first major step in the vision process. But when the photoreceptors in the retina degenerate, as occurs in macular degeneration, the retina no longer responds to light, and the person loses some or all of their sight. Show More Summary

Robot that moves like an inchworm could go places other robots can't

The peculiar way that an inchworm inches along a surface may not be fast compared to using legs, wings, or wheels, but it does have advantages when it comes to maneuvering in small spaces. This is one of the reasons why researchers have...Show More Summary

Deceptive behavior may (deceivingly) promote cooperation

( —Tricking someone into trusting you in order to gain something from them is common behavior in both the animal and human worlds. From cuckoo birds that trick other bird species into raising their young, to cunning salespeople who pretend to sell you a product that will improve your life, deviant behavior takes many forms. Show More Summary

Study reveals missing boundary in PZT phase diagram

( —Piezoelectric materials, which produce electricity in response to mechanical stress, account for a $12 billion global industry that is projected to grow at a rate of 13.2% per year, according to a recent report by Innovative Research and Products. Show More Summary

Mathematicians settle 30-year-old resonance controversy

In the early '80s, several researchers were working to determine the location of atomic and molecular resonances, which are the frequencies at which atoms and molecules prefer to oscillate. Two groups of researchers (Rittby, et al., and Korsch, et al.), each using a different method, came up with different locations for these resonances. Show More Summary

There and back again: Extending optical storage lifetime by retrieving photon echoes from semiconductor spin excitations

( —For all of their differences, classical and quantum communication have at least one thing in common: the importance of being able to store optical information. That being said, optical storage is a complex process that depends...Show More Summary

Flying qubits make for a highly resilient quantum memory

( —In a quantum memory, the basic unit of data storage is the qubit. Because a qubit can exist in a superposition state of both "1" and "0" at the same time, it can process much more information than a classical bit. However, qubits are often very unstable due to decoherence, currently making them impractical for real-life memory storage.

Spontaneous wave function collapse can suppress acoustic Schrodinger cat states

( —Schrödinger's famous thought experiment in which a cat hidden in a box can be both dead and alive at the same time demonstrates the concept of superposition on the macroscopic scale. However, the existence of such "cat states"...Show More Summary

Light-matter interaction can turn opaque materials transparent

( —All objects' colors are determined by the way that light scatters off of them. By manipulating the light scattering, scientists can control the wavelengths at which light is transmitted and reflected by objects, changing their appearance.

Water, water everywhere: How UV irradiation reversibly switches graphene between hydrophobic and hydrophilic states

( —Scientists have long observed that the wettability of graphene – an essentially two-dimensional crystalline allotrope of carbon that it interacts oddly with light and with other materials – can be reversed between hydrophobic and hydrophilic states by applying ultraviolet (UV) irradiation. Show More Summary

Flatland, we hardly knew ye: Unique 1-D metasurface acts as polarized beam splitter, allows novel form of holography

( —Traditional three-dimensional (3-D) plasmonic metamaterials with metallic structures – artificial materials that exploit coherent delocalized electron oscillations known as surface plasmons produced from the interaction of...Show More Summary

Extremely stretchable hydrogels may be used in artificial muscles

( —Hydrogels can reversibly change their size and shape under different conditions. This property makes them attractive for a wide variety of applications, including artificial muscles, drug delivery, and sensors. But even though...Show More Summary

Serious security: Device-Independent Quantum Key Distribution guards against the most general attacks

The Holy Grail of quantum cryptography – beyond delivering security that cannot be classically achieved – is guaranteeing unconditional security when the untrusted quantum devices are involved. While this goal has been studied since the early 1990s, a robust solution has proven elusive. Show More Summary

Quantum test strengthens support for EPR steering

Although the concept of "steering" in quantum mechanics was proposed back in 1935, it is still not completely understood today. Steering refers to the ability of one system to nonlocally affect, or steer, another system's states through local measurements. Show More Summary

Dolphin-inspired sonar overcomes size-wavelength limitation

( —In a typical man-made sonar system, pulses of sound emitted by the projector bounce off hidden objects underwater. The echoes are then detected by the receiver to infer the location and size of the hidden objects.

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