Faster, smaller and more economical gallium nitride transistors
For the first time, researchers from CNRS France and ETH Zurich have succeeded in producing high-performance high-electron-mobility transistors (HEMTs) made of gallium nitride (GaN) on a silicon(110) wafer. ...
Sep 21, 2011 |
5 / 5 (3) |
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Were Twin Towers felled by chemical blasts? (Update)
A mix of sprinkling system water and melted aluminium from aircraft hulls likely triggered the explosions that felled New York's Twin Towers on September 11, 2001, a materials expert has told a technology ...
Sep 21, 2011 |
3.1 / 5 (40) |
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Research demonstrates method that allows inexpensive carbon materials to store hydrogen at room temperature
Hydrogen has long been considered a promising alternative to fossil fuels for powering cars, trucks and even homes. But one major obstacle has been finding lightweight, robust and inexpensive ways of storing the gas, whose ...
Sep 19, 2011 |
4.9 / 5 (14) |
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Post-silicon computing
Could Pittsburgh be the nation's next "Strontium Valley"? The University of Pittsburgh is the lead institution on a $1.8 million grant from the National Science Foundation and the Nanoelectronics Research Initiative (NRI) ...
Sep 19, 2011 |
5 / 5 (1) |
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Earth's rarest metals ranked in supply risk list
(PhysOrg.com) -- A new list published by the British Geological Survey, or BGS, ranks 52 of Earth's elements based on their risk of supply disruption. Andrew Bloodworth, from BGS, points out that the likeli ...
Space & Earth / Earth Sciences
Sep 14, 2011 |
4.8 / 5 (9) |
8
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Understanding the interplay of grains helps cars drop the pounds, be more fuel efficient
Sometimes solving the biggest challenges begins with understanding something very small -- like the tiny grains that form a piece of metal. For a team of scientists who wanted to improve automotive fuel efficiency, ...
Sep 14, 2011 |
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Graphene may open the gate to future terahertz technologies
Nestled between radio waves and infrared light is the terahertz (THz) portion of the electromagnetic spectrum. By adding a nanoscale bit of graphene, researchers have found a better way to tune radiation for a THz transmitter.
Sep 12, 2011 |
4.9 / 5 (7) |
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Where does all the gold come from?
Ultra high precision analyses of some of the oldest rock samples on Earth by researchers at the University of Bristol provides clear evidence that the planet's accessible reserves of precious metals are the ...
Space & Earth / Earth Sciences
Sep 07, 2011 |
4.4 / 5 (24) |
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Nanocables light way to the future: Researchers power line-voltage light bulb with nanotube wire
(PhysOrg.com) -- Cables made of carbon nanotubes are inching toward electrical conductivities seen in metal wires, and that may light up interest among a range of industries, according to Rice University researchers.
Nanotechnology / Nanomaterials
Sep 07, 2011 |
4.6 / 5 (14) |
9
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Researchers pioneer novel technique to make plasmonic nanogap arrays
In the quest to exploit unique properties at the nanoscale, scientists at Stevens Institute of Technology have developed a novel technique for creating uniform arrays of metallic nanostructures. A team of faculty and students ...
Sep 06, 2011 |
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New material shows promise for trapping pollutants
(PhysOrg.com) -- Water softening techniques are very effective for removing minerals such as calcium and magnesium, which occur as positively-charged ions in "hard" water. But many heavy metals and other inorganic ...
Sep 06, 2011 |
5 / 5 (4) |
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Researchers discover how bacteria can immobilize uranium
(PhysOrg.com) -- For several years, researchers have known that certain kinds of bacteria are able to "feed" off certain metals by either adding or removing electrons from their structure, but until now, haven’t really ...
Sep 06, 2011 |
5 / 5 (15) |
5
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Chinese researchers look at possibility of capturing asteroids in Earth orbit
(PhysOrg.com) -- In an interesting twist regarding the study of asteroids and what happens when they come close to our planet, Hexi Baoyin and his two colleagues, Yang Chen and Junfeng Li at Tsinghua University ...
Space & Earth / Space Exploration
Sep 02, 2011 |
4 / 5 (10) |
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First chemical complex consisting of rare earth metals and boron atoms produces unexpected results
Boron is an intriguing member of the periodic table because it readily forms stable compounds using only six electrons—two fewer than most other main-group elements. This means that chemists can easily ...
Sep 02, 2011 |
4.8 / 5 (4) |
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Rock rafts could be 'cradle of life'
(PhysOrg.com) -- Floating rafts of volcanic pumice could have played a significant role in the origins of life on Earth, scientists from Oxford University and the University of Western Australia have suggested.
Space & Earth / Earth Sciences
Sep 02, 2011 |
4.8 / 5 (6) |
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