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Tuesday, December 1, 2009

Nanoparticles Can Now Withstand Extreme Heat

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Scientists have been trying to produce metallic nanoparticles able to withstand large temperatures for a long time, but their efforts have thus far been in vein. These small structures could come in handy as catalysts for hydrogen production, or as active components in new catalysts systems, which might see cars emit less pollution than they do now. Researchers at the University of Pittsburgh have just demonstrated high-temperature stability in nanoparticles for the first time, opening the way for these applications to finally be set into motion.

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Optical pressure sensors give robots the human touch

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ARTIFICIAL skin embedded with optical sensors could help robots develop a more human touch.
Existing sensors, such as those based on simple pressure switches and motor resistance, are limited in their ability to detect subtle changes in pressure and to distinguish between different textures. A key reason for this is the electrical components and wires they are made from tend to be inflexible.

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French scientists create skin fast from stem cells

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French scientists have found a way to create human skin rapidly from stem cells, a discovery that could save the lives of many burns victims who are vulnerable to infection and now wait weeks for a skin graft.

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Innovation puts next-generation solar cells on the horizon

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Scientists at Monash University, in collaboration with colleagues fromthe universities of Wollongong and Ulm in Germany, have produced tandem dye-sensitised solar cells with a three-fold increase in energy conversion efficiency compared with previously reported tandem dye-sensitised solar cells.

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Mathematical model of a simple circuit in a chicken brain raises fundamental questions

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Model circuit (right) duplicates the anatomy of the chicken microcircuit studied in Ralf Wessel's WUSTL lab (left). The complexity of the neuron's response arises from feedback loops in the circuit.


Taiwanese researchers show several flexible e-reader screens

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Taiwan's Industrial Technology Research Institute (ITRI) showed off a number of flexible display screen technologies in Taipei on Thursday as part of a show promoting e-readers and e-paper.

New Microscope Reveals the Shape of Atoms

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Improved field-emission microscope images electron orbitals, confirming their theoretical shapes

Researchers have now managed to image the electron orbitals and show for the first time that, in a sense, atoms really look like those textbook images.

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Astronauts Want a Next-Gen Ride 10 Times Safer Than the Shuttle

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Astronauts say the next crew launch vehicle should have disaster odds of just 1 in 1,000


NASA's Astronaut Office wants the next vehicle carrying astronauts into space to have launch disaster odds of just 1 in 1,000, compared to the 1 in 129 odds of a shuttle launch disaster. It also wants the vehicle to have crew escape or launch abort capability, to meet NASA's human-rating safety standards, and to undergo thorough testing and analysis with independent oversight.

TenCate Advanced Armour Introduces New Variations of TenCate Pro-Tector®

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TenCate Pro-Tector® is a proprietary coated ballistic technology based on aramid fibres currently available, combined with a variation of resin systems. This results in a flexible, lightweight, high-performance material, mostly intended for use in personal protection solutions.

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LED Bulbs Save Substantial Energy, a Study Finds

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The study results show that over the entire life of the bulb — from manufacturing to disposal — the energy used for incandescent bulbs is almost five times that used for compact fluorescents and LED lamps.

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Robotic clam could detonate underwater mines

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Inspired by the amazing ability of the small clam to dig and wedge itself far deeper and more securely than would be thought, researchers developed a robotic clam that moves the same way and can detonate hidden mines.

Raytheon's Rolling Airframe Missile Completes Key Flight Tests

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Raytheon's Rolling Airframe Missile Block 2 successfully completed three instrumented test vehicle flights between April and October designed to demonstrate the system's upgraded kinematic capabilities.