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Blog Profile / Physorg Features


URL :http://www.physorg.com/
Filed Under:Academics / General Science
Posts on Regator:580
Posts / Week:2.6
Archived Since:April 9, 2010

Blog Post Archive

Robots may receive urine-powered artificial 'hearts'

(Phys.org) —It's a first: researchers have built the first artificial-heart-like pump that is powered by microbial fuel cells fed on human urine. But instead of being used as a prosthetic device for human patients suffering from cardiac failure, the pump is intended to be used in "EcoBots" that extract energy from organic waste and turn it into electricity.

Express yourself: Scientists use genetic algorithm to design self-assembling ssDNA-grafted particles

(Phys.org) —Material design usually follows what is known as the Edisonian method, a traditional process characterized by trial-and-error discovery rather than a systematic theoretical approach. While this may be somewhat inaccurateShow More Summary

Proton radius puzzle may be solved by quantum gravity

(Phys.org) —Officially, the radius of a proton is 0.88 ± 0.01 femtometers (fm, or 10-15 m). Researchers attained that value using two methods: first, by measuring the proton's energy levels using hydrogen spectroscopy, and second, by...Show More Summary

Physicists add 'quantum Cheshire Cats' to list of quantum paradoxes

(Phys.org) —Given all the weird things that can occur in quantum mechanics—from entanglement to superposition to teleportation—not much seems surprising in the quantum world. Nevertheless, a new finding that an object's physical properties can be disembodied from the object itself is not something we're used to seeing on an everyday basis. Show More Summary

Ultra-flexible battery's performance rises to meet demands of wearable electronics

(Phys.org) —While there has been much research lately on the development of flexible electronic devices that can be integrated into clothes, glasses, watches, and even skin, the limiting factor of this technology is the battery. Although...Show More Summary

Organic semiconductor transistor made of a single nanoparticle achieves highest mobility yet

(Phys.org) —Organic semiconducting devices have many positive attributes, such as their low cost, high flexibility, light weight, and ease of processing. However, one drawback of organic semiconductors is that they generally have a low electron mobility, resulting in a weak current and poor conductivity.

Scientists create light bullets for high-intensity optical applications

(Phys.org) —Controlling the propagation of high-intensity light beams as they travel through air (or other transparent media) is a challenging task, but scientists have now shown that a relatively new type of light beam called a ring-Airy beam can self-focus into intense light bullets that propagate over extended distances. Show More Summary

Physicists 'uncollapse' a partially collapsed qubit

(Phys.org) —One of the striking features of a qubit is that, unlike a classical bit, it can be in two states at the same time. That is, until a measurement is made on the qubit, causing it to collapse into a single state. This measurement process and the resulting collapse may at first seem irreversible. Show More Summary

'Peanut' particles could be used to build micro-scale factories

(Phys.org) —One of the main components of a factory is the robots that transport and assemble objects of varying shapes and sizes. When scaling down to the micro level, the steel and wiring that these robots are made of must be replaced by something else—one new idea is peanut-shaped particles that are propelled with light and steered by magnetic fields.

Photon-plasmon nanowire laser offers new opportunities in light manipulation

Recently, researchers have been developing a new type of laser that combines photons and plasmons (electron density oscillations) into a single radiation-emitting device with unique properties. In particular, nanoscale photon-plasmon lasers can emit light that is more tightly confined than the light emitted by lasers that use only photons.

Better, faster, simpler: Depositing graphene directly onto flexible substrates

(Phys.org) —The wunderkind material graphene is a one-atom thick layer of graphite (another crystalline form of carbon) in which carbon atoms are arranged in a regular hexagonal pattern. Being very strong, light, nearly transparent, and an excellent conductor of heat and electricity, is finding new applications at a dizzying rate. Show More Summary

Through a nanopore, ionically: Graphene quantum transistor for next-generation DNA sensing

(Phys.org) —In the ongoing quest to devise faster, lower-cost methods for sequencing the human genome, scientists at University of Illinois at Urbana–Champaign have developed a novel approach: DNA molecules are sensed by passing them...Show More Summary

Scientists propose quantum wells as high-power, easy-to-make energy harvesters

(Phys.org) —By collecting heat energy from the environment and transforming it into electrical power, thermoelectric energy harvesters have the potential to provide energy for a variety of small electronic devices. Currently, the biggest challenge in developing thermoelectric energy harvesters is to make systems that are both powerful and efficient at the same time.

Could 'Higgsogenesis' explain dark matter?

(Phys.org) —The recently discovered Higgs boson is best known for its important role in explaining particle mass. But now some physicists are wondering if the Higgs could have played an equally significant role in generating dark matter...Show More Summary

Chemical passwords could lead to unbreakable molecular lock

(Phys.org) —If you're in the business of cracking codes, it would be pretty difficult to break into a security system that you don't even know is there. That's one of the advantages of molecular keypad locks, whose small sizes make them very difficult to detect. Show More Summary

Bee brains challenge view that larger brains are superior at understanding conceptual relationships

(Phys.org) —The humble honeybee may not seem very intelligent at first sight, but recent research has shown that it possesses a surprising degree of sophistication that is not expected in an insect brain. Specifically, the honeybee can...Show More Summary

Feynman wasn't joking: Modeling quantum dynamics with ground state wavefunctions

(Phys.org) —Amongst the late Richard Feynman's many prolific and profound contributions to quantum mechanics, the eponymous Feynman clock is perhaps one of the more innovative. Conceived as a solution to the problem of quantum simulation,...Show More Summary

Future phones and laptops could have speakers made of carbon nanotubes

(Phys.org) —For the past year, researchers at Tsinghua University in Beijing have been listening to music on a laptop through a pair of unusual earphones. Although the earphones look ordinary, they do not contain the typical metal coil...Show More Summary

Folding batteries increases their areal energy density by up to 14 times

(Phys.org) —By folding a paper-based Li-ion battery in a Miura-ori pattern (similar to how some maps are folded), scientists have shown that the battery exhibits a 14x increase in areal energy density and capacity due to its smaller footprint. Show More Summary

Physicists find that entanglement concentration is irreversible, in contrast with previous research

(Phys.org) —Several different types of entangled states can be used in quantum information processes, and these states can be converted into one another using a variety of conversion processes. While previous research has suggested that...Show More Summary

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