Wednesday 31 July 2013

Surprising result discovered when looking into effects of carbon nanotubes and soil sorption of toxicants

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When it comes to carbon nanotubes (CNTs) in the soil, recent research shows that the new materials do not affect the sorption of the toxic part of oil called polycyclic aromatic hydrocarbons (PAHs).

via Science Daily

Spitzer Discovers Young Stars with a 'Hula Hoop'

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Astronomers using NASA's Spitzer Space Telescope have spotted a young stellar system that "blinks" every 93 days. Called YLW 16A, the system likely consists of three developing stars, two of which are surrounded by a disk of material left over from the star-formation process.

via Science Daily

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NASA's Cassini sees forces controlling Enceladus jets

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The intensity of the jets of water ice and organic particles that shoot out from Saturn's moon Enceladus depends on the moon's proximity to the ringed planet, according to data obtained by NASA's Cassini spacecraft.

via Science Daily

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Universal law for light absorption in 2-D semiconductors

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Researchers have demonstrated a universal law of light absorption for 2-D semiconductors. This discovery not only provides new insight into the optical properties of 2-D semiconductors and quantum wells, it should also open doors to exotic new optoelectronic and photonic technologies.

via Science Daily

Researchers discover universal law for light absorption in 2D semiconductors

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From solar cells to optoelectronic sensors to lasers and imaging devices, many of today's semiconductor technologies hinge upon the absorption of light. Absorption is especially critical for nano-sized structures at the interface between two energy barriers called quantum wells, in which the movement of charge carriers is confined to two-dimensions. Now, for the first time, a simple law of light absorption for 2D semiconductors has been demonstrated.



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Guided growth of nanowires leads to self-integrated circuits

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Researchers working with tiny components in nanoelectronics face a challenge similar to that of parents of small children: teaching them to manage on their own. The nano-components are so small that arranging them with external tools is impossible. The only solution is to create conditions in which they can be "trusted" to assemble themselves.



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NASA TV Coverage Set for Japanese Cargo Ship Destined for Space Station

The launch of a Japanese cargo spacecraft to the International Space Station and its arrival at the orbiting laboratory will be broadcast on NASA Television Aug. 3 and Aug. 9.

via NASA Breaking News

http://www.nasa.gov/press/2013/july/nasa-tv-coverage-set-for-japanese-cargo-ship-destined-for-space-station

Saturn's Mimas and Pandora: Two moons passing in the night

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The Saturn moons Mimas and Pandora remind us of how different they are when they appear together, as in this image taken by NASA's Cassini spacecraft. Pandora's small size means that it lacks sufficient gravity to pull itself into a round shape like its larger sibling, Mimas. Researchers believe that the elongated shape of Pandora (50 miles, or 81 kilometers across) may hold clues to how it and other moons near Saturn's rings formed.

via Science Daily

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NASA Completes First Internal Review of Concepts for Asteroid Redirect Mission

NASA has completed the first step toward a mission to find and capture a near-Earth asteroid, redirect it to a stable lunar orbit and send humans to study it.

via NASA Breaking News

http://www.nasa.gov/press/2013/july/nasa-completes-first-internal-review-of-concepts-for-asteroid-redirect-mission

NASA Invites Media to Preview Pollution-Climate Science Flights

For a behind-the-scenes look at NASA's upcoming airborne campaign to study how air pollution from wildfires and other sources affects our climate, NASA will host a media day from 8-11 a.m. CDT Wednesday, Aug. 21, in Houston.

via NASA Breaking News

http://www.nasa.gov/press/2013/july/nasa-invites-media-to-preview-pollution-climate-science-flights

Tiny, brightly shining silicon crystals could be safe for deep-tissue imaging

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Tiny silicon crystals caused no health problems in monkeys three months after large doses were injected, marking a step forward in the quest to bring such materials into clinics as biomedical imaging agents, according to a new study.



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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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Miniaturized ultra-small platinum cylinders weaken when their constituents reduced in number

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Miniaturizing microscopic metallic objects while enhancing their strength is critical to developing high-performance devices that integrate transistor-like electronics with mechanical components. When these objects consist of small crystals, or grains, such as polycrystalline nanopillars, their mechanical behavior is difficult to predict because the grains vary in size and orientation. Researchers from the California Institute of Technology, USA, and A*STAR Institute of High Performance Computing (IHPC), Singapore, have now determined how miniaturization and intrinsic granular structure impact the deformation of ultra-small platinum cylinders.



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Astronaut Mp3 Speakers

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Whether you space out listening to music; or you just listen to space music these are the speakers for you.A blue and purple fractal image resembling an astronaut's helmet and shoulders on a starfield background.
via Zazzle Outer Space market place