Saturday, 31 August 2013

NASA wants to build giant spacecraft with 3D printing spiders

Right now it's easy to think of NASA's glory days as being behind it. China and Europe are sending rockets to space stations, private industry is creating space tourism and NASA's space shuttle program has gone the way of the dodo. Even the Kepler Space Telescope is slowly, but surely, going down in flames.

Yet all is not lost for the ailing U.S. space agency. Quietly, in a lab just to the north of Seattle, NASA and its partner Tethers Unlimited are working on something stupendous. For a good long while, rumors and whispers have made the news concerning NASA's testing of how 3D printing might work in zero gravity. Now we know why: NASA is planning to construct the spacecraft of tomorrow with multi-armed robotic, 3D printing spiders.

The robots are called SpiderFab and are designed to be capable of ...
»more: here

Friday, 30 August 2013

Researchers a step closer to finding cosmic ray origins

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The origin of cosmic rays in the universe has confounded scientists for decades. But new information that may help unravel the longstanding mystery of exactly how and where they are produced.

via Science Daily

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Ultracold big bang experiment successfully simulates evolution of early universe

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Physicists have reproduced a pattern resembling the cosmic microwave background radiation in a laboratory simulation of the Big Bang, using ultracold cesium atoms in a vacuum chamber.

via Science Daily

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NASA Astronaut Mike Hopkins Available for Interviews before Space Mission

NASA astronaut Mike Hopkins, scheduled to travel to the International Space Station in September, will be available for live satellite interviews from 7-8 a.m. EDT Monday, Sept. 9.

via NASA Breaking News

http://www.nasa.gov/press/2013/august/nasa-astronaut-mike-hopkins-available-for-interviews-before-space-mission

NASA Mars rover views eclipse of the sun by Phobos

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Images taken with a telephoto-lens camera on NASA's Mars rover Curiosity catch the larger of Mars' two moons, Phobos, passing directly in front of the sun -- the sharpest images of a solar eclipse ever taken at Mars.

via Science Daily

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Physics team suggests possible way to make quantum cryptography available in handheld machines

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(Phys.org) —A team of physicists at Bristol University in the U.K. has proposed a possible way to allow for quantum cryptography between a large station and a small hand held device. They describe such a technique in a paper they have uploaded to the preprint server arXiv.



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Cosmic Cloud iPad Mini Cases

Here's a great product from Zazzle featuring an astronomy case. Maybe you'd like to see your name on it? Click to personalize and see what it's like!

here's a cool design that is sure to work out for you. It was created by reflections06,
another talented artist from the Zazzle community!


Great little custom case for your device!

»visit the reflections06 store for more designs and products like this
The Zazzle Promise: We promise 100% satisfaction. If you don't absolutely love it, we'll take it back!

Thursday, 29 August 2013

Plastic products could easily become electronic with first moldable all-carbon circuits

more »

(Phys.org) —There has been a great deal of research lately on flexible electronics, but so far these devices (which are mostly made of carbon) still use metal electrodes and oxide insulators, and these rigid materials limit device flexibility. Some polymers and ionic liquids have been introduced as flexible alternatives, but have poor performance in terms of high operating voltages and low operating speeds, respectively.



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Astronomers use Hubble images for movies featuring space slinky

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(Phys.org) —Astronomers have assembled, from more than 13 years of observations from NASA's Hubble Space Telescope, a series of time-lapse movies showing a jet of superheated gas—5,000 light-years long—as it is ejected from a supermassive black hole.



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Physicist proves impossibility of quantum time crystals

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(Phys.org) —Is it possible that a moving object could have zero energy? The common sense answer is no, since motion itself is kinetic energy, but this answer has been challenged recently by the concept of quantum time crystals. First proposed in 2012 by the Nobel Laureate Frank Wilczek at MIT, quantum time crystals are theoretical systems that exhibit periodic oscillations in their ground state, i.e., their state of lowest possible energy.



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Two become one with the 3-D NanoChemiscope

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The 3D NanoChemiscope is a miracle of state-of-the-art analysis technology. As a further development of well-known microscopic and mass spectroscopic methods, it maps the physical and chemical surfaces of materials down to the atomic level. This instrument, which is unique in the world, not only delivers high-definition images; it also knows what it is "seeing".



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A brighter method to determine surface gravity of distant stars

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Astronomers have found a clever new way to slice and dice the flickering light from a distant star in a way that reveals the strength of gravity at its surface.



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Teleportation just got easier—but not for you, unfortunately

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Thanks to two studies published in Nature last Thursday, the chance of successful teleportation has considerably increased. Which is a good thing, right?



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Quantum effects in nanowires at room temperature

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Nano technologists at the University of Twente research institute MESA+ have, for the first time, demonstrated quantum effects in tiny nanowires of iridium atoms. These effects, which occur at room temperature, are responsible for ensuring that the wires are almost always 4.8 nanometers—or multiples thereof—long. They only found the effects when they failed to create long nanowires of iridium. Nature Communications is publishing the research today.



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Researchers discover quantum algorithm that could improve stealth fighter design

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(Phys.org) —Researchers at the Johns Hopkins University Applied Physics Laboratory (APL) have devised a quantum algorithm for solving big linear systems of equations. Furthermore, they say the algorithm could be used to calculate complex measurements such as radar cross sections, an ability integral to the development of radar stealth technology, among many other applications. Their research is reported in the June 18 issue of Physical Review Letters.



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'Groovy' hologram creates strange state of light at visible and invisible wavelengths

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(Phys.org) —Applied physicists at the Harvard School of Engineering and Applied Sciences (SEAS) have demonstrated that they can change the intensity, phase, and polarization of light rays using a hologram-like design decorated with nanoscale structures.



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ALMA takes close look at drama of starbirth

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(Phys.org) —Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have obtained a vivid close-up view of material streaming away from a newborn star. By looking at the glow coming from carbon monoxide molecules in an object called Herbig-Haro 46/47 they have discovered that its jets are even more energetic than previously thought. The very detailed new images have also revealed a previously unknown jet pointing in a totally different direction.



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Quantum teleportation: Transfer of flying quantum bits at the touch of a button

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By means of the quantum-mechanical entanglement of spatially separated light fields, researchers in Tokyo and Mainz have managed to teleport photonic qubits with extreme reliability. This means that a decisive breakthrough has been achieved some 15 years after the first experiments in the field of optical teleportation. The success of the experiment conducted in Tokyo is attributable to the use of a hybrid technique in which two conceptually different and previously incompatible approaches were combined.



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Teleported by electronic circuit: Physicists 'beam' information

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ETH-researchers cannot "beam" objects or humans of flesh and blood through space yet, a feat sometimes alluded to in science fiction movies. They managed, however, to teleport information from A to B – for the first time in an electronic circuit, similar to a computer chip.



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Quantum communication controlled by resonance in 'artificial atoms'

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Researchers at the Niels Bohr Institute, together with colleagues in the US and Australia, have developed a method to control a quantum bit for electronic quantum communication in a series of quantum dots, which behave like artificial atoms in the solid state. The results have been published in the scientific journal Physical Review Letters.



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An infallible quantum measurement

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Entanglement is a key resource for upcoming quantum computers and simulators. Now, physicists in Innsbruck and Geneva realized a new, reliable method to verify entanglement in the laboratory using a minimal number of assumptions about the system and measuring devices. Hence, this method witnesses the presence of useful entanglement.



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Towards a global quantum network: Photoelectron trapping in double quantum dots

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(Phys.org) —While the journey from today's fledgling quantum computers to a global quantum information network may seem daunting, researchers are continually, and at an accelerating pace, making progress towards that goal. One key element essential to that progress is the transfer of quantum information between single photons and solid-state quanta – and the properties of semiconductor quantum dots (QDs) make them excellent candidates for photon-electron quantum coupling. One historical stumbling block has been that although quantum circuits require nondestructive transfer between separate dots, using single QDs usually fails due to destructive transfer in which photoelectrons are immediately lost upon measurement.



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Scientists realize quantum bit with a bent nanotube

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One of the biggest challenges in quantum science is to build a functioning quantum bit, the basic element for the quantum computer. An important theoretical candidate for such a quantum bit is using a bent carbon nanotube. Scientists at the Delft University of Technology and the Foundation for Fundamental Research on Matter (FOM), led by Professor Leo Kouwenhoven, have succeeded for the first time to create a working quantum bit using a carbon nanotube. On July 28 they published their results in Nature Nanotechnology.



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When fluid dynamics mimic quantum mechanics

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In the early days of quantum physics, in an attempt to explain the wavelike behavior of quantum particles, the French physicist Louis de Broglie proposed what he called a "pilot wave" theory. According to de Broglie, moving particles—such as electrons, or the photons in a beam of light—are borne along on waves of some type, like driftwood on a tide.



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What if quantum physics worked on a macroscopic level?

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Quantum physics concerns a world of infinitely small things. But for years, researchers from the University of Geneva (UNIGE), Switzerland, have been attempting to observe the properties of quantum physics on a larger scale, even macroscopic. In January 2011, they managed to entangle crystals, therefore surpassing the atomic dimension. Now, Professor Nicolas Gisin's team has successfully entangled two optic fibers, populated by 500 photons. Unlike previous experiments which were carried out with the fiber optics of one photon, this new feat (which has been published in Nature Physics) begins to answer a fundamental question: can quantum properties survive on a macroscopic level?



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"Valleytronics" – a new type of electronics in diamond

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(Phys.org) —An alternative and novel concept in electronics is to utilize the wave quantum number of the electron in a crystalline material to encode information. In a new article in Nature Materials, Isberg et.al. propose using this valley degree of freedom in diamond to enable valleytronic information processing or as a new route to quantum computing.



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Making big 'Schroedinger cats': Quantum research pushes boundary by testing micro theory for macro objects

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Since Erwin Schroedinger's famous 1935 cat thought experiment, physicists around the globe have tried to create large scale systems to test how the rules of quantum mechanics apply to everyday objects.



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Searching for quantum physics in all the right places

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An improved method for measuring quantum properties offers new insight into the unique characteristics of quantum systems.



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Oxford Questions seek to pull back the curtain on the foundations of quantum physics

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(Phys.org) —Relativity and quantum theory form the backbone of modern physics, but a group of physicists stresses that daily use of these theories can numb the sense of wonder at their immense empirical success. At the same time, fundamental questions on the foundations of these two theories remain. In 2010, experimentalists, theorists, and philosophers of physics convened at a conference at the University of Oxford called Quantum Physics and the Nature of Reality. They produced a set of "Oxford Questions" aimed at identifying some specific open problems about the nature of quantum reality in order to stimulate and guide future research.



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Physicists publish solution to the quantum measurement problem

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(Phys.org) —Quantum mechanics is a highly successful theory, but its interpretation has still not been settled. In their recent opus magnum, Theo Nieuwenhuizen (Institute of Physics, UvA) and colleagues claim to have found a solution to the so-called quantum measurement problem.



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Link between quantum physics and game theory found

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(Phys.org) —A deep link between two seemingly unconnected areas of modern science has been discovered by researchers from the Universities of Bristol and Geneva.



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Physicists build quantum refrigerator based on four quantum dots

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(Phys.org) —With the goal of understanding the relation between thermodynamics and quantum mechanics, physicists have recently been investigating the fundamental limits of the smallest possible quantum refrigerator. As a refrigerator, the device must be able to transfer heat from one reservoir to another. In a new study, physicists have proposed a quantum refrigerator consisting of just four quantum dots, each in contact with a thermal reservoir. They theoretically show that this system can extract heat from the coldest reservoir and cool the nearby quantum dot, making it one of the smallest quantum refrigerators proposed to date.



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Detection of single photons via quantum entanglement

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Almost 200 years ago, Bavarian physicist Joseph von Fraunhofer discovered dark lines in the sun's spectrum. It was later discovered that these spectral lines can be used to infer the chemical composition and temperature of the sun's atmosphere. Today we are able to gain information about diverse objects through light measurements in a similar way. Because often very little light needs to be detected for this, physicists are looking for ever more sensitive spectroscopy methods. In extreme cases, also single particles of light (photons) need to be measured reliably, which is technically challenging.



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Two papers investigate the thermodynamics of quantum systems

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(Phys.org) —As one of the pillars of the natural sciences, thermodynamics plays an important role in all processes that involve heat, energy, and work. While the principles of thermodynamics can predict the amount of work done in classical systems, for quantum systems there is instead a distribution of many possible values of work. Two new papers published in Physical Review Letters have proposed theoretical schemes that would significantly ease the measurement of the statistics of work done by quantum systems.



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MIT researchers build an all-optical transistor

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Optical computing—using light rather than electricity to perform calculations—could pay dividends for both conventional computers and quantum computers, largely hypothetical devices that could perform some types of computations exponentially faster than classical computers.



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Exhibit highlights advances in quantum communication and computing

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Researchers from the Cambridge Research Laboratory of Toshiba Research Europe Limited and the Cavendish Laboratory of the University of Cambridge will today present the world's most secure chat and video conferencing network at the Royal Society Summer Science Exhibition in London. It uses quantum physics to automatically detect tapping of the network and alert users of any potential threat.



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Large-scale quantum chip validated

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A team of scientists at USC has verified that quantum effects are indeed at play in the first commercial quantum optimization processor.



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New grayscale technique opens a third dimension for nanoscale lithography

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Engineers at the NIST Center for Nanoscale Science and Technology (CNST) have developed a new technique for fabricating high aspect ratio three-dimensional (3D) nanostructures over large device areas using a combination of electron beam (e-beam) lithography, photolithography, and resist spray coating. While it has long been possible to make complicated 3D structures with many mask layers or expensive grayscale masks, the new technique enables researchers to etch trenches and other high aspect ratio structures with nanometer scale features without using masks and in only two process stages.



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Light on twenty-year-old electron mystery

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Groningen scientists have found an explanation for a mystery that has been puzzling the physics community since 1995. In the scientific journal Nature on Thursday 28 August (Advance Online Publication), they explain why electrons pass through very tiny wires (known as quantum point contacts) less smoothly than expected. The observations of the group led by Prof. C.H. van der Wal of the Zernike Institute for Advanced Materials of the University of Groningen will affect electronics on a nanoscale: "Our thinking about this has been too naïve so far."



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New component in the quantum electronics toolbox

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The coherence of quantum systems is the foundation upon which hardware for future information technologies is based. Quantum information is carried by units called quantum bits, or qubits. They can be used to secure electronic communications – and they enable very fast searches of databases. But qubits are also very unstable. Professors József Fortágh, Dieter Kölle and Reinhold Kleiner of Tübingen's Institute of Physics have developed a new electronic component which will help to deal with this problem. The researchers' long-term goal is to process, transfer and store superposition states such as the overlapping of the binary digits zero and one. The initial results of their work are to be published in the journal Nature Communications on 29 August 2013.



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Galactic Jewel Box iPad Mini Covers

Here's a great product from Zazzle featuring an astronomy case. Maybe you'd like to see your name on it? Click to personalize and see what it's like!

after scouring the Zazzle market place for a while, I settled on this as my choice for today. By reflections06,
another talented artist from the Zazzle community!


Great little custom case for your device!

»visit the reflections06 store for more designs and products like this
The Zazzle Promise: We promise 100% satisfaction. If you don't absolutely love it, we'll take it back!

Neutron stars in the computer cloud

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The combined computing power of 200,000 private PCs helps astronomers take an inventory of the Milky Way. The Einstein@Home project connects home and office PCs of volunteers from around the world to a global supercomputer. Using this computer cloud, an international team lead by scientists from the Max Planck Institutes for Gravitational Physics and for Radio Astronomy analysed archival data from the CSIRO Parkes radio telescope in Australia. Using new search methods, the global computer network discovered 24 pulsars – extraordinary stellar remnants with extreme physical properties. These can be used as testbeds for Einstein's general theory of relativity and could help to complete our picture of the pulsar population.



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New sensor for SERS Raman spectroscopy almost as sensitive as a dog's nose

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Using carbon nanotubes, a research team led by Professor Hyung Gyu Park in collaboration with Dr. Tiziana Bond has developed a sensor that greatly amplifies the sensitivity of commonly used but typically weak vibrational spectroscopic methods, such as Raman spectroscopy. This type of sensor makes it possible to detect molecules present in the tiniest of concentrations.



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Quantum measurement carries information even when the measurement outcome is unread

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(Phys.org) —Some tasks that are impossible in classical systems can be realized in quantum systems. This fact is exemplified by a new protocol that highlights an important difference between classical and quantum measurements. In classical mechanics, performing a measurement without reading the measurement outcome does not carry any information and is therefore equivalent to not performing the measurement at all. But in the new protocol, a quantum measurement that is performed but not read can carry information because the information can be encoded in the choice of the type of measurement that was performed.



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Quantum computing: Manipulating a single nuclear spin qubit of a laser cooled atom

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It is advantageous to implement a quantum bit (qubit) with a single nuclear spin because the nuclear spin is robust against any stray magnetic fields. This robustness can be attributed to the small magnitude of the magnetic moment of the nuclear spin compared with that of the electronic spin.



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Physicist disentangles 'Schrodinger's cat' debate

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Physicist Art Hobson has offered a solution, within the framework of standard quantum physics, to the long-running debate about the nature of quantum measurement.



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Silence in the sky—but why?

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(Phys.org) —Scientists as eminent as Stephen Hawking and Carl Sagan have long believed that humans will one day colonise the universe. But how easy would it be, why would we want to, and why haven't we seen any evidence of other life forms making their own bids for universal domination?



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Embracing Orion

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(Phys.org) —This new view of the Orion A star-formation cloud from ESA's Herschel space observatory shows the turbulent region of space that hugs the famous Orion Nebula.



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New nanomaterial increases yield of solar cells

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Researchers from the FOM Foundation, Delft University of Technology, Toyota Motor Europe and the University of California have developed a nanostructure with which they can make solar cells highly efficient. The researchers published their findings on 23 August 2013 in the online edition of Nature Communications.



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NASA's SDO mission untangles motion inside the sun

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Using an instrument on NASA's Solar Dynamics Observatory, called the Helioseismic and Magnetic Imager, or HMI, scientists have overturned previous notions of how the sun's writhing insides move from equator to pole and back again, a key part of understanding how the dynamo works. Modeling this system also lies at the heart of improving predictions of the intensity of the next solar cycle.

via Science Daily

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Space laser to prove increased broadband possible

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Scientists are attemping to show two-way laser communication beyond Earth is possible, expanding the possibility of transmitting huge amounts of data. This new ability could one day allow for 3-D high definition video transmissions in deep space to become routine.

via Science Daily

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Phoenix on Space Cigar Nebula backdrop Galaxy S3 Cover


Galaxies, Stars and Nebulae series With a stylized Crimson Rising Phoenix, wings outstretched in rebirth, this is a composite of images of the active galaxy Messier 82 from the three Great Observatories: Hubble Space Telescope, Chandra X-Ray Observatory, and Spitzer Space Telescope. X-ray data recorded by Chandra appears here in blue, infrared light recorded by Spitzer appears in red. Hubble's observation of hydrogen emission appears in orange. Hubble's bluest observation appears in yellow-green.

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image codes: agmet phnx

Image credit: Hubble Space Telescope, Chandra X-Ray Observatory, Spitzer Space Telescope
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Flaming Nebula Case For The iPad Mini

Here's a great product from Zazzle featuring an astronomy case. Maybe you'd like to see your name on it? Click to personalize and see what it's like!

so many products with fantastic designs on Zazzle... which to choose today? How about this one from reflections06,
another talented artist from the Zazzle community!


Great little custom case for your device!

»visit the reflections06 store for more designs and products like this
The Zazzle Promise: We promise 100% satisfaction. If you don't absolutely love it, we'll take it back!

Wednesday, 28 August 2013

Milky Way gas cloud causes multiple images of distant quasar

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For the first time, astronomers have seen the image of a distant quasar split into multiple images by the effects of a cloud of ionized gas in our own Milky Way Galaxy. Such events were predicted as early as 1970, but the first evidence for one now has come from the National Science Foundation's Very Long Baseline Array (VLBA) radio telescope system.

via Science Daily

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Milky Way gas cloud causes multiple images of distant quasar

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For the first time, astronomers have seen the image of a distant quasar split into multiple images by the effects of a cloud of ionized gas in our own Milky Way Galaxy. Such events were predicted as early as 1970, but the first evidence for one now has come from the National Science Foundation's Very Long Baseline Array (VLBA) radio telescope system.



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NASA Helicopter Test a Smash Hit

Engineers at NASA's Langley Research Center in Hampton, Va., dropped an old Marine CH-46E helicopter fuselage filled with 15 dummy occupants from a height of about 30 feet Wednesday to test improved seats and seatbelts and gather data on the odds of surviving a helicopter crash.

via NASA Breaking News

http://www.nasa.gov/press/2013/august/nasa-helicopter-test-a-smash-hit

New Cassini data from Saturn's largest moon Titan indicate a rigid, weathered ice shell

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An analysis of gravity and topography data from Saturn's largest moon, Titan, has revealed unexpected features of the moon's outer ice shell. The best explanation for the findings, the authors said, is that Titan's ice shell is rigid and that relatively small topographic features on the surface are associated with large roots extending into the underlying ocean.

via Science Daily

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Butterfly wings + carbon nanotubes = new 'nanobiocomposite' material

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Leveraging the amazing natural properties of the Morpho butterfly's wings, scientists have developed a nanobiocomposite material that shows promise for wearable electronic devices, highly sensitive light sensors and sustainable batteries.

via Science Daily

Plastic products could easily become electronic with first moldable all-carbon circuits

more »

(Phys.org) —There has been a great deal of research lately on flexible electronics, but so far these devices (which are mostly made of carbon) still use metal electrodes and oxide insulators, and these rigid materials limit device flexibility. Some polymers and ionic liquids have been introduced as flexible alternatives, but have poor performance in terms of high operating voltages and low operating speeds, respectively.



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Oldest solar twin identified

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Astronomers have used ESO’s Very Large Telescope to study the oldest solar twin known to date. Located 250 light-years away, the star HIP 102152 is more like the Sun than any other solar twin — except that it is nearly four billion years older. This older twin may be host to rocky planets and gives us an unprecedented chance to see how the Sun will look when it ages.

via Science Daily

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A fluffy disk around a baby star

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An international team of astronomers that are members of the Strategic Exploration of Exoplanets and Disks with Subaru Telescope (SEEDS) Project has used Subaru Telescope's High Contrast Instrument for the Subaru Next Generation Adaptive Optics (HiCIAO) to observe a disk around the young star RY Tau (Tauri). The team's analysis of the disk shows that a "fluffy" layer above it is responsible for the scattered light observed in the infrared image. Detailed comparisons with computer simulations of scattered light from the disk reveal that this layer appears to be a remnant of material from an earlier phase of stellar and disk development, when dust and gas were falling onto the disk.



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Astronomers use Hubble images for movies featuring space slinky

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(Phys.org) —Astronomers have assembled, from more than 13 years of observations from NASA's Hubble Space Telescope, a series of time-lapse movies showing a jet of superheated gas—5,000 light-years long—as it is ejected from a supermassive black hole.



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Oldest solar twin identified: VLT provides new clues to help solve lithium mystery

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(Phys.org) —An international team led by astronomers in Brazil has used ESO's Very Large Telescope to identify and study the oldest solar twin known to date. Located 250 light-years from Earth, the star HIP 102152 is more like the Sun than any other solar twin—except that it is nearly four billion years older. This older, but almost identical, twin gives us an unprecedented chance to see how the Sun will look when it ages. The new observations also provide an important first clear link between a star's age and its lithium content, and in addition suggest that HIP 102152 may be host to rocky terrestrial planets.



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MOND predicts dwarf galaxy feature prior to observations

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A modified law of gravity correctly predicted, in advance of the observations, the velocity dispersion—the average speed of stars within a galaxy relative to each other—in 10 dwarf satellite galaxies of the Milky Way's giant neighbor Andromeda.



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Physicist proves impossibility of quantum time crystals

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(Phys.org) —Is it possible that a moving object could have zero energy? The common sense answer is no, since motion itself is kinetic energy, but this answer has been challenged recently by the concept of quantum time crystals. First proposed in 2012 by the Nobel Laureate Frank Wilczek at MIT, quantum time crystals are theoretical systems that exhibit periodic oscillations in their ground state, i.e., their state of lowest possible energy.



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Researchers get around bad gap problem with graphene by using negative differential resistance

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(Phys.org) —A team of researchers at the University of California has come up with a way to use graphene in a transistor without sacrificing speed. In a paper they've uploaded to the preprint server arXiv, the team describes how they took advantage of a property of graphene known as negative differential resistance to coax transistor-like properties out of graphene without causing it to behave as a semiconductor.



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Two become one with the 3-D NanoChemiscope

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The 3D NanoChemiscope is a miracle of state-of-the-art analysis technology. As a further development of well-known microscopic and mass spectroscopic methods, it maps the physical and chemical surfaces of materials down to the atomic level. This instrument, which is unique in the world, not only delivers high-definition images; it also knows what it is "seeing".



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Astronomers take sharpest photos ever of the night sky (Update)

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Astronomers at the University of Arizona, the Arcetri Observatory near Florence, Italy and the Carnegie Observatory have developed a new type of camera that allows scientists to take sharper images of the night sky than ever before.



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A brighter method to determine surface gravity of distant stars

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Astronomers have found a clever new way to slice and dice the flickering light from a distant star in a way that reveals the strength of gravity at its surface.



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Teleportation just got easier—but not for you, unfortunately

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Thanks to two studies published in Nature last Thursday, the chance of successful teleportation has considerably increased. Which is a good thing, right?



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Molecular motors: Power much less than expected?

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An innovative measurement method was used at the Institute of Physical Chemistry of the Polish Academy of Sciences in Warsaw for estimating power generated by motors of single molecule in size, comprising a few dozens of atoms only. The findings of the study are of crucial importance for construction of future nanometer machines – and they do not instil optimism.



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Quantum effects in nanowires at room temperature

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Nano technologists at the University of Twente research institute MESA+ have, for the first time, demonstrated quantum effects in tiny nanowires of iridium atoms. These effects, which occur at room temperature, are responsible for ensuring that the wires are almost always 4.8 nanometers—or multiples thereof—long. They only found the effects when they failed to create long nanowires of iridium. Nature Communications is publishing the research today.



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Phoenix on Stars and Veils in Omega Nebula Samsung Galaxy SIII Case


Galaxies, Stars and Nebulae series Like the fury of a raging sea, this bubbly ocean of glowing hydrogen, oxygen, and sulphur gas lies in the extremely massive and luminous molecular nebula Messier 17.
This Hubble photograph captures a small region within Messier 17 (M17), a hotbed of star formation. M17, also known as the Omega or Swan Nebula, is located about 5500 light-years away in the Sagittarius constellation.
Ultraviolet radiation is carving and heating the surfaces of cold hydrogen gas clouds and the warmed surfaces glow orange and red. The intense heat and pressure causes some material to stream away from the surface, creating the glowing veil of even hotter green-coloured gas that masks background structures. The colours in the image represent various gases. Red represents sulphur; green, hydrogen; and blue, oxygen.

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image code: eroton

Image credit: NASA, the ACS Science Team
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Phoenix on Space's Swan Nebula backdrop Galaxy S3 Covers


Galaxies, Stars and Nebulae series Amazingly this could almost be some underwater scene with strange creatures swimming in the aquamarine waters. It's actually the centre of the Swan Nebula, or M17, a hotbed of newly born stars wrapped in colourful blankets of glowing gas and cradled in an enormous cold, dark hydrogen cloud. This stunning picture was taken by the newly installed Advanced Camera for Surveys (ACS) aboard the NASA/ESA Hubble Space Telescope.
The region of the nebula shown in this picture is about 3500 times wider than our Solar System. The area also represents about 60 percent of the total view captured by ACS. The nebula resides 5500 light-years away in the constellation Sagittarius. Like its famous cousin in Orion, the Swan Nebula is illuminated by ultraviolet radiation from young, massive stars - each about six times hotter and 30 times more massive than our Sun.

The powerful radiation from these stars evaporates and erodes the dense cloud of cold gas within which the stars formed. The blistered walls of the hollow cloud shine primarily in the blue, green, and red light emitted by excited atoms of hydrogen, nitrogen, oxygen, and sulphur. Particularly striking is the rose-like feature, seen to the right of centre, which glows in the red light emitted by hydrogen and sulphur.
As the infant stars evaporate the surrounding cloud, they expose dense pockets of gas that may contain developing stars. Because these dense pockets are more resistant to the withering radiation than the surrounding cloud, they appear as sculptures in the walls of the cloud or as isolated islands in a sea of glowing gas. One isolated pocket is seen at the centre of the brightest region of the nebula and is about 10 times larger than our Solar System.

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image code: midswneb

Image credit: NASA, the ACS Science Team
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Sparkling Inkblot iPad Mini Case

Here's a great product from Zazzle featuring an astronomy case. Maybe you'd like to see your name on it? Click to personalize and see what it's like!

what do you think of this one? I bumped into it and thought it was cool. By reflections06,
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»visit the reflections06 store for more designs and products like this
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NASA tests limits of 3-D printing with powerful rocket engine check

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The largest 3-D printed rocket engine component NASA ever has tested blazed to life Thursday, Aug. 22 during an engine firing that generated a record 20,000 pounds of thrust. This test is a milestone for one of many important advances the agency is making to reduce the cost of space hardware. Innovations like additive manufacturing, or 3-D printing, foster new and more cost-effective capabilities in the U.S. space industry.

via Science Daily

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NASA'S Mars Curiosity debuts autonomous navigation

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NASA's Mars rover Curiosity has used autonomous navigation for the first time, a capability that lets the rover decide for itself how to drive safely on Mars. This latest addition to Curiosity's array of capabilities will help the rover cover the remaining ground en route to Mount Sharp, where geological layers hold information about environmental changes on ancient Mars. The capability uses software that engineers adapted to this larger and more complex vehicle from a similar capability used by NASA's Mars Exploration Rover Opportunity, which is also currently active on Mars.

via Science Daily

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Tuesday, 27 August 2013

Researchers discover quantum algorithm that could improve stealth fighter design

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(Phys.org) —Researchers at the Johns Hopkins University Applied Physics Laboratory (APL) have devised a quantum algorithm for solving big linear systems of equations. Furthermore, they say the algorithm could be used to calculate complex measurements such as radar cross sections, an ability integral to the development of radar stealth technology, among many other applications. Their research is reported in the June 18 issue of Physical Review Letters.



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New theory points to 'zombie vortices' as key step in star formation

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(Phys.org) —A new theory by fluid dynamics experts at the University of California, Berkeley, shows how "zombie vortices" help lead to the birth of a new star.



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NASA to Preview Orbital Sciences Flight to Space Station

NASA will host a televised news conference at 4 p.m. EDT Wednesday, Sept. 4, to preview the upcoming test flight of Orbital Sciences Corp.'s Cygnus cargo spacecraft to the International Space Station.

via NASA Breaking News

http://www.nasa.gov/press/2013/august/nasa-to-preview-orbital-sciences-flight-to-space-station

'Groovy' hologram creates strange state of light at visible and invisible wavelengths

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(Phys.org) —Applied physicists at the Harvard School of Engineering and Applied Sciences (SEAS) have demonstrated that they can change the intensity, phase, and polarization of light rays using a hologram-like design decorated with nanoscale structures.



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Swedish museum to recover lost scientific artifact

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A rare 16th-century scientific instrument used by early astronomers that has been missing from a Swedish museum for around a decade has been recovered and will be returned this week, the London-based Art Loss Register says.



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ALMA takes close look at drama of starbirth

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(Phys.org) —Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have obtained a vivid close-up view of material streaming away from a newborn star. By looking at the glow coming from carbon monoxide molecules in an object called Herbig-Haro 46/47 they have discovered that its jets are even more energetic than previously thought. The very detailed new images have also revealed a previously unknown jet pointing in a totally different direction.



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Technique to improve high precision and nanotechnology surface measurement

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(Phys.org) —A University of Warwick scientist has conceived a new method to improve the measurement of the surfaces of components essential for use in high-precision and nanotechnology applications.



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Polymer solar cells employing Forster resonance energy transfer

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Two crucial tasks exist for realizing high-efficiency polymer solar cells: increasing the range of the spectral absorption of light and efficiently harvesting photo-generated excitons. In this work, Förster resonance energy transfer (FRET)-based heterojunction polymer solar cells that incorporate squaraine dye (SQ) were fabricated and investigated.



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Free-floating planets may be born free

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Tiny, round, cold clouds in space have all the right characteristics to form planets with no parent star. New observations, made with Chalmers University of Technology telescopes, show that not all free-floating planets were thrown out of existing planetary systems. They can also be born free.



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Stunning images of Andromeda demonstrate the world's most powerful astronomical camera

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(Phys.org) —Stunning images of the Andromeda Galaxy are among the first to emerge from a new wide-field camera installed on the enormous Subaru Telescope atop the Hawaiian mountain Mauna Kea. The camera, called the Hyper-Suprime Cam (HSC), is the result of an international collaboration between Princeton University astrophysicists and Japanese and Taiwanese scientists.



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Waking up to a new year: Team discovers an exoplanet that orbits its star in 8.5 hours

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In the time it takes you to complete a single workday, or get a full night's sleep, a small fireball of a planet 700 light-years away has already completed an entire year.



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New study reveals that stellar winds scatter star-forming material (w/ Video)

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(Phys.org) —A University of Alberta astrophysicist's 3-D computer animation is helping an international research team get an unprecedented look at star-forming gases escaping from a nearby galaxy.



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Air quality measurements: New manufacturing method for nano gas sensors opens doors

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Nano-sized gas sensors in mobile telephones that measure the atmospheric humidity are nothing new as such. However, so far it was necessary to rely on complex lithographic methods to produce the required nano-structure of the sensors, and they have the added disadvantage that they do not work well on uneven surfaces. A relatively new approach is the focussed electron beam deposition method – FEBID for short – in which the nano-structures can be "written directly" without requiring any pre- or after-treatment.



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Raman pixel by pixel

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New data processing protocol enables feature-based recognition of Surface-enhanced Raman spectra for intracellular molecule probing of biological targets. It relies on locally detecting the most relevant spectra to retrieve all data independently through indexing.



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Bubbles are the new lenses for nanoscale light beams

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Bending light beams to your whim sounds like a job for a wizard or an a complex array of bulky mirrors, lenses and prisms, but a few tiny liquid bubbles may be all that is necessary to open the doors for next-generation, high-speed circuits and displays, according to Penn State researchers.



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Physicists discover atomic clock can simulate quantum magnetism

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Researchers at JILA have for the first time used an atomic clock as a quantum simulator, mimicking the behavior of a different, more complex quantum system.



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Molecules form 2-D patterns never before observed: Experiments produce elusive 5-vertex tilings

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Tessellation patterns that have fascinated mathematicians since Johannes Kepler worked out their systematics 400 years ago – and that more recently have caught the eye of both artists and crystallographers – can now be seen in the laboratory. They first took shape on a surface more perfectly two-dimensional than any sheet of writing paper, a single layer of atoms and molecules atop an atomically smooth substrate. Physicists coaxed these so-called Kepler tilings "onto the page" through guided self-assembly of nanostructures.



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Magnetic switching simplified

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An international team of researchers has described a new physical effect that could be used to develop more efficient magnetic chips for information processing. The quantum mechanical effect makes it easier to produce spin-polarized currents necessary for the switching of magnetically stored information. The research findings were published online on 28 July in the high-impact journal Nature Nanotechnology.



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Squeezed light produced using silicon micromechanical system

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One of the many counterintuitive and bizarre insights of quantum mechanics is that even in a vacuum—what many of us think of as an empty void—all is not completely still. Low levels of noise, known as quantum fluctuations, are always present. Always, that is, unless you can pull off a quantum trick. And that's just what a team led by researchers at the California Institute of Technology (Caltech) has done. The group has engineered a miniature silicon system that produces a type of light that is quieter at certain frequencies—meaning it has fewer quantum fluctuations—than what is usually present in a vacuum.



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Battery design gets boost from aligned carbon nanotubes

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Researchers at North Carolina State University have created a new flexible nano-scaffold for rechargeable lithium ion batteries that could help make cell phone and electric car batteries last longer.



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Quantum communication controlled by resonance in 'artificial atoms'

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Researchers at the Niels Bohr Institute, together with colleagues in the US and Australia, have developed a method to control a quantum bit for electronic quantum communication in a series of quantum dots, which behave like artificial atoms in the solid state. The results have been published in the scientific journal Physical Review Letters.



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Making a mini Mona Lisa

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The world's most famous painting has now been created on the world's smallest canvas. Researchers at the Georgia Institute of Technology have "painted" the Mona Lisa on a substrate surface approximately 30 microns in width – or one-third the width of a human hair. The team's creation, the "Mini Lisa," demonstrates a technique that could potentially be used to achieve nanomanufacturing of devices because the team was able to vary the surface concentration of molecules on such short-length scales.



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Quantum inverted pendulum: Control scheme dynamically maintains unstable quantum system

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A simple pendulum has two equilibrium points: hanging in the "down" position and perfectly inverted in the "up" position. While the "down" position is a stable equilibrium, the inverted position is definitely not stable. Any infinitesimal deviation from perfectly inverted is enough to cause the pendulum to eventually swing down.



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Teleported by electronic circuit: Physicists 'beam' information

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ETH-researchers cannot "beam" objects or humans of flesh and blood through space yet, a feat sometimes alluded to in science fiction movies. They managed, however, to teleport information from A to B – for the first time in an electronic circuit, similar to a computer chip.



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Small-molecule solar cells get 50% increase in efficiency with optical spacer

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(Phys.org) —In the world of organic solar cells, polymer-based devices may currently be at the top, but other organic materials such as "small molecules" also prove to be promising. Although small-molecule organic solar cells currently have lower efficiencies than polymer solar cells, they are generally easier to fabricate and their efficiencies are improving.



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New electron beam writer enables next-gen biomedical and information technologies

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(Phys.org) —The new electron beam writer housed in the Nano3 cleanroom facility at the Qualcomm Institute is important for electrical engineering professor Shadi Dayeh's two major areas of research. He is developing next-generation, nanoscale transistors for integrated electronics; and he is developing neural probes that have the capacity to extract electrical signals from individual brain cells and transmit the information to a prosthetic device or computer. Achieving this level of signal extraction or manipulation requires tiny sensors spaced very closely together for the highest resolution and signal acquisition. Enter the new electron beam writer.



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Zero-dimensional transistor harvests bubble energy wasted during water electrolysis

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(Phys.org) —When hydrogen is produced from water during electrolysis, some energy is lost as tiny bubbles. In a new study, researchers have demonstrated that 25-nm transistors—so small that they're considered zero-dimensional (0D)—can be used to transform this lost energy into electric pulses. Millions of these 0D transistors could be used to detect individual bubbles and generate electric pulses at an optimal efficiency, gathering part of the energy lost during electrolysis and making it available for other uses.



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NASA Tests Limits of 3-D Printing with Powerful Rocket Engine Check

The largest 3-D printed rocket engine component NASA ever has tested blazed to life Aug. 22 during an engine firing that generated a record 20,000 pounds of thrust.

via NASA Breaking News

http://www.nasa.gov/press/2013/august/nasa-tests-limits-of-3-d-printing-with-powerful-rocket-engine-check

Pulsars make a GPS for the cosmos

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(Phys.org) —CSIRO scientists have written software that could guide spacecraft to Alpha Centauri, show that the planet Nibiru doesn't exist … and prove that the Earth goes around the Sun.



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NASA gives up fixing Kepler planet-hunting telescope

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NASA called off all attempts to fix its crippled Kepler space telescope Thursday. But it's not quite ready to call it quits on the remarkable, robotic planet hunter.



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NASA-Funded Scientists Detect Water on Moon's Surface that Hints at Water Below

NASA-funded lunar research has yielded evidence of water locked in mineral grains on the surface of the moon from an unknown source deep beneath the surface.

via NASA Breaking News

http://www.nasa.gov/press/2013/august/nasa-funded-scientists-detect-water-on-moons-surface-that-hints-at-water-below

Scientists detect magmatic water on moon's surface

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Scientists have detected magmatic water — water that originates from deep within the Moon's interior — on the surface of the Moon. These findings represent the first such remote detection of this type of lunar water.

via Science Daily

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NASA continues preparation for new Space Launch System engine testing at Stennis

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Think about negotiating an intricate maze, and you begin to appreciate the challenge of designing and fabricating test stand piping for NASA's RS-25 rocket engine. NASA is meeting that challenge at its Stennis Space Center near Bay St. Louis, Miss., where liquid oxygen (LOX), liquid hydrogen and related piping is being produced for RS-25 engine testing on the A-1 test stand. Testing of the core-stage engine for NASA's new Space Launch System (SLS) is scheduled to begin next spring. The SLS is being developed to carry humans deeper into space than ever before.

via Science Daily

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Quantum measurement carries information even when the measurement outcome is unread

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(Phys.org) —Some tasks that are impossible in classical systems can be realized in quantum systems. This fact is exemplified by a new protocol that highlights an important difference between classical and quantum measurements. In classical mechanics, performing a measurement without reading the measurement outcome does not carry any information and is therefore equivalent to not performing the measurement at all. But in the new protocol, a quantum measurement that is performed but not read can carry information because the information can be encoded in the choice of the type of measurement that was performed.



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Quantum computing: Manipulating a single nuclear spin qubit of a laser cooled atom

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It is advantageous to implement a quantum bit (qubit) with a single nuclear spin because the nuclear spin is robust against any stray magnetic fields. This robustness can be attributed to the small magnitude of the magnetic moment of the nuclear spin compared with that of the electronic spin.



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Cosmic Cloud2 iPad Mini Cover

Here's a great product from Zazzle featuring an astronomy case. Maybe you'd like to see your name on it? Click to personalize and see what it's like!

it's always a pleasure to choose a design from reflections06,
another talented artist from the Zazzle community!


Great little custom case for your device!

»visit the reflections06 store for more designs and products like this
The Zazzle Promise: We promise 100% satisfaction. If you don't absolutely love it, we'll take it back!

Researchers figure out how to 'grow' carbon nanotubes with specific atomic structures

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Move over, silicon. In a breakthrough in the quest for the next generation of computers and materials, researchers have solved a longstanding challenge with carbon nanotubes: how to actually build them with specific, predictable atomic structures.

via Science Daily

Retirement Luck, Red Supergiant Star Monocerotis Greeting Cards


Galaxies, Stars and Nebulae series

A gorgeous card featuring a distant star, named V838 Monocerotis, in the direction of the constellation of Monoceros on the outer edge of our Milky Way. The image shows the swirls of dust spiralling across trillions of miles of interstellar space, lit mainly from within by a pulse of light from the red supergiant, two years into its journey.

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Image code: monocerotis

Image credit: NASA, the Hubble Heritage Team (AURA/STScI) and ESA
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Bursting Nebula iPad Mini Case

Here's a great product from Zazzle featuring an astronomy device case. Maybe you'd like to see your name on it? Click to personalize and see what it's like!

in my relentless search to find great designs, I found this one by reflections06,
another talented artist from the Zazzle community!


Great little custom case for your device!

»visit the reflections06 store for more designs and products like this
The Zazzle Promise: We promise 100% satisfaction. If you don't absolutely love it, we'll take it back!

Monday, 26 August 2013

Physicist disentangles 'Schrodinger's cat' debate

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Physicist Art Hobson has offered a solution, within the framework of standard quantum physics, to the long-running debate about the nature of quantum measurement.



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NASA's Spitzer telescope celebrates 10 years in space

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Ten years after a Delta II rocket launched NASA's Spitzer Space Telescope, lighting up the night sky over Cape Canaveral, Fla., the fourth of the agency's four Great Observatories continues to illuminate the dark side of the cosmos with its infrared eyes.

via Science Daily

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Astronaut Gregory H. Johnson Leaves NASA

NASA astronaut Gregory H. Johnson has left the agency, after a 15-year career that included more than 31 days in space, for a position with the Center for the Advancement of Science in Space.

via NASA Breaking News

http://www.nasa.gov/press/2013/august/astronaut-gregory-h-johnson-leaves-nasa

Silence in the sky—but why?

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(Phys.org) —Scientists as eminent as Stephen Hawking and Carl Sagan have long believed that humans will one day colonise the universe. But how easy would it be, why would we want to, and why haven't we seen any evidence of other life forms making their own bids for universal domination?



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Cosmic turbulences result in star and black hole formation

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Just how stars and black holes in the Universe are able to form from rotating matter is one of the big questions of astrophysics. What we do know is that magnetic fields figure prominently into the picture. However, our current understanding is that they only work if matter is electrically well conductive—but in rotating discs this isn't always the case. Now, a new publication by Helmholtz-Zentrum Dresden-Rossendorf physicists in the scientific journal Physical Review Letters shows how magnetic fields can also cause turbulences within "dead zones," thus making an important contribution to our current understanding of just how compact objects form in the cosmos.



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Embracing Orion

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(Phys.org) —This new view of the Orion A star-formation cloud from ESA's Herschel space observatory shows the turbulent region of space that hugs the famous Orion Nebula.



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Boomerang Nebula Cover For The iPad Mini

Here's a great product from Zazzle featuring an astronomy ipad mini case. Maybe you'd like to see your name on it? Click to personalize and see what it's like!

I like this one and had to share. A really special design from reflections06,
another talented artist from the Zazzle community!


Great little custom case for your device!

»visit the reflections06 store for more designs and products like this
The Zazzle Promise: We promise 100% satisfaction. If you don't absolutely love it, we'll take it back!

New nanomaterial increases yield of solar cells

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Researchers from the FOM Foundation, Delft University of Technology, Toyota Motor Europe and the University of California have developed a nanostructure with which they can make solar cells highly efficient. The researchers published their findings on 23 August 2013 in the online edition of Nature Communications.



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Japanese candidate site selected for linear collider


In a press conference this morning, the site evaluation committee for the proposed International Linear Collider announced its recommendation: If the 19-mile-long, next-generation particle collider is built in Japan, it should be located in the Kitakami mountains of the Iwate and Miyagi prefectures.


Read more: "Japan selects candidate site for linear collider" – Symmetry





via CERN updates

http://home.web.cern.ch/about/updates/2013/08/japanese-candidate-site-selected-linear-collider

Happy Birthday, Red Supergiant Star Monocerotis Cards


Galaxies, Stars and Nebulae series

A gorgeous card featuring a distant star, named V838 Monocerotis, in the direction of the constellation of Monoceros on the outer edge of our Milky Way. The image shows the swirls of dust spiralling across trillions of miles of interstellar space, lit mainly from within by a pulse of light from the red supergiant, two years into its journey.

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All items in the Galaxies, Stars and Nebulae series

Image code: monocerotis

Image credit: NASA, the Hubble Heritage Team (AURA/STScI) and ESA
via Zazzle Astronomy market place

Coming Out Luck, Red Supergiant Star Monocerotis Greeting Card


Galaxies, Stars and Nebulae series A gorgeous astronomy picture featuring a distant star, named V838 Monocerotis, in the direction of the constellation of Monoceros on the outer edge of our Milky Way. The image shows the swirls of dust spiralling across trillions of miles of interstellar space, lit mainly from within by a pulse of light from the red supergiant, two years into its journey.

more items with this image
more items in the Galaxies, Stars and Nebulae series

image code: monocerotis

Image credit: NASA, the Hubble Heritage Team (AURA/STScI) and ESA
via Zazzle Astronomy market place