Science

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Borneo on Fire

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The worst forest fires in nearly two decades are burning out of control on Borneo, creating the thick blanket of smoke in this Oct. 14 image from NASA's MISR instrument.

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Manipulating wrinkles could lead to graphene semiconductors

Graphene has generally been described as a two-dimensional structure--a single sheet of carbon atoms arranged in a regular structure--but the reality is not so simple. In reality, graphene can form wrinkles which make the structure more complicated, potentially being applied to device systems. The graphene can also interact with the substrate upon which it is laid, adding further complexity.

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Schematic of the work The tip of the scanning tunneling microscope (in yellow-orange) is moved over the graphene and the nanowrinkle.

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Capacitor breakthrough: Nanotechnology offers new approach to increasing storage ability of dielectric capacitors

Oct. 21, 2015, was the day that Doc Brown and Marty McFly landed in the future in their DeLorean, with time travel made possible by a "flux capacitor."

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This is a diagram of the dielectric capacitor research developed by a University of Delaware-led research team.

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ING Telescopes Provide Unique Observations in Support of the ESA Rosetta Mission

The European Space Agency’s Rosetta mission is currently exploring comet 67P/Churyumov-Gerasimenko, returning incredible views of this tiny frozen world. The Rosetta mission is a hugely ambitious endeavour – the first spacecraft to orbit a comet and follow it on its journey towards the Sun, accompanied by its lander, Philae, which made the first ever landing on a comet in November 2014. Observatories across the planet are supporting this mission, and the ING is playing an important part in this – especially in providing unique observations this year as the comet passed its closest point to the Sun and highest level of activity.
One of the key goals of the ground-based observation campaign that supports Rosetta is to understand the comet on the largest scales (the coma fills a volume tens of thousands of km across) while the spacecraft explores the very inner region (normally within 300 km of the 4 km long nucleus). To do this, observations need to look at both the shape of the coma via wide field imaging and the chemical composition of the coma gases. The gases reflect sunlight at different wavelengths, allowing them to be identified and measured using spectrograph instruments.

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Capacitor breakthrough: Nanotechnology offers new approach to increasing storage ability of dielectric capacitors

Oct. 21, 2015, was the day that Doc Brown and Marty McFly landed in the future in their DeLorean, with time travel made possible by a "flux capacitor."

While the flux capacitor still conjures sci-fi images, capacitors are now key components of portable electronics, computing systems, and electric vehicles.

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Biosensors; New Option to Diagnose Leukemia

Application of gold bar-like nanostructures with perfect optical properties has attracted attentions to diagnose and treat disease.

Iranian researchers from Tarbiat Modarres University designed a biosensor that enables the early diagnosis of leukemia in the test sample by using naked eyes. The biosensors have been produced at low cost, and they enjoy high sensitivity, selectivity and speed.

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NASA Calls for American Industry Ideas on ARM Spacecraft Development

NASA, through its Jet Propulsion Laboratory (JPL) in Pasadena, California, has issued a call to American industry for innovative ideas on how the agency could obtain a core advanced solar electric propulsion-based spacecraft to support the Asteroid Redirect Robotic Mission (ARRM).

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Photons open the gateway for quantum networks

There is tremendous potential for new information technology based on light (photons). Photons (light particles) are very well suited for carrying information and quantum technology based on photons -- called quantum photonics, will be able to hold much more information than current computer technology. But in order to create a network with photons, you need a photon contact, a kind of transistor that can control the transport of photons in a circuit. Researchers at the Niels Bohr Institute in collaboration with researchers from the Korea Institute of Science and Technology have managed to create such a contact. The results are published in the scientific journal Nature Communications.

Quantum information can be sent optically, that is to say, using light, and the signal is comprised of photons, which is the smallest component (a quantum) of a light pulse. Quantum information is located in whichever path the photon is sent along -- it can, for example, be sent to the right or to the left on a semi-transparent mirror. It can be compared to the use of bits made up of 0s and 1s in the world of conventional computers. But a quantum bit is more than a classical bit, since it is both a 0 and a 1 at the same time and it cannot be read without it being detected, as it is only a single photon. In addition, quantum technology can be used to store far more information than conventional computer technology, so the technology has much greater potential for future information technology.

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Fuel Additive Could Lead to Safer Jet Fuel

Airplane accidents are especially dangerous because jet fuel is highly flammable under crash conditions. On impact, jet fuel is dispersed in the air as a fine mist, which triggers a sequence of events that can lead to a fire engulfing an entire plane.

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Graphene nano-coils are natural electromagnets: Rice University researchers discover graphene spirals could challenge macro solenoids

In the drive to miniaturize electronics, solenoids have become way too big, say Rice University scientists who discovered the essential component can be scaled down to nano-size with macro-scale performance.

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A nano-coil made of graphene could be an effective solenoid inductor for electronic applications, according to researchers at Rice University.