News tagged with metal
Will 3-D printing launch a new industrial revolution?
Peter Schmitt, an MIT doctoral student, printed a clock in 2009. He didn't print an image of a clock on a piece of paper. He printed a three-dimensional clock -- an eight-inch diameter plastic timekeeping ...
Apr 13, 2012 |
4.8 / 5 (34) |
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'Space ball' drops on Namibia
A large metallic ball fell out of the sky on a remote grassland in Namibia, prompting baffled authorities to contact NASA and the European space agency.
Space & Earth / Space Exploration
Dec 22, 2011 |
4.1 / 5 (32) |
54
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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Researchers identify mysterious life forms in the extreme deep sea (w/ video)
(PhysOrg.com) -- A summer research expedition organized by scientists at Scripps Institution of Oceanography at UC San Diego has led to the identification of gigantic amoebas at one of the deepest locations ...
Space & Earth / Earth Sciences
Oct 23, 2011 |
4.7 / 5 (23) |
10
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Small modular reactor design could be a 'SUPERSTAR'
(PhysOrg.com) -- Though most of today's nuclear reactors are cooled by water, we've long known that there are alternatives; in fact, the world's first nuclear-powered electricity in 1951 came from a reactor ...
Technology / Energy & Green Tech
Feb 10, 2012 |
4.5 / 5 (24) |
41
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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) |
36
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Blocked holes can enhance rather than stop light going through
Conventional wisdom would say that blocking a hole would prevent light from going through it, but Princeton University engineers have discovered the opposite to be true. A research team has found that placing ...
Nov 22, 2011 |
4.7 / 5 (22) |
25
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Pair claim they have turned hydrogen to metal
(PhysOrg.com) -- Many have tried, but none have succeeded. For at least a hundred years, scientists looking at hydrogen have scratched their chins when musing over the fact that it, as an alkali metal, by ...
Nov 15, 2011 |
4.7 / 5 (20) |
28
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Graphene's shining light could lead to super-fast Internet
Internet connection speeds could be tens of times faster than they currently are, thanks to research by University of Manchester scientists using wonder material graphene.
Nanotechnology / Nanomaterials
Aug 30, 2011 |
4.8 / 5 (19) |
12
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New kind of high-temperature photonic crystal could someday power everything from smartphones to spacecraft
A team of MIT researchers has developed a way of making a high-temperature version of a kind of materials called photonic crystals, using metals such as tungsten or tantalum. The new materials — which ...
Feb 03, 2012 |
4.9 / 5 (18) |
5
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Japanese researchers develop EV motor not reliant on rare earth metals
Japanese researchers working out of Tokyo University of Science, have built what they describe as a motor for electric cars that does not require so-called rare earth metals; a move that could drive down the costs for such ...
Technology / Energy & Green Tech
Jul 27, 2011 |
4.6 / 5 (17) |
25
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Physicists demonstrate quantum plasmons in atomic-scale nanoparticles
Addressing a half-century-old question, engineers at Stanford have conclusively determined how collective electron oscillations, called plasmons, behave in individual metal particles as small as just a few nanometers in diameter. ...
Mar 21, 2012 |
4.5 / 5 (17) |
0
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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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Bend breakthrough sends light around a corner
(PhysOrg.com) -- Australian National University scientists have successfully bent light beams around an object on a two dimensional metal surface, opening the door to faster and cheaper computer chips working ...
Aug 12, 2011 |
5 / 5 (14) |
7
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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) |
16
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Metal
In chemistry, a metal (Greek: Metallo, Μέταλλο) is an element, compound, or alloy characterized by high electrical conductivity. In a metal, atoms readily lose electrons to form positive ions (cations); those ions are surrounded by delocalized electrons, which are responsible for the conductivity. The thus produced solid is held by electrostatic interactions between the ions and the electron cloud, which are called metallic bonds.
For more information about Metal, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
