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Metal air battery

Metal-Air Battery Could Store 11 Times More Energy than Lithium-Ion

Technology / Energy

created Nov 05, 2009 | popularity 4.4 / 5 (48) | comments 12

(PhysOrg.com) -- A spinoff company from Arizona State University plans to build a new battery with an energy density 11 times greater than that of lithium-ion batteries for just one-third the cost. With a ...


New hydrogen-storage method discovered

New hydrogen-storage method discovered

Chemistry / Materials Science

created Nov 22, 2009 | popularity 4.3 / 5 (42) | comments 15

Scientists at the Carnegie Institution have found for the first time that high pressure can be used to make a unique hydrogen-storage material. The discovery paves the way for an entirely new way to approach ...


Is global warming unstoppable?

Space & Earth / Environment

created Nov 23, 2009 | popularity 3.5 / 5 (47) | comments 65

In a provocative new study, a University of Utah scientist argues that rising carbon dioxide emissions - the major cause of global warming - cannot be stabilized unless the world's economy collapses or society builds the ...


Quantum computing may actually be useful, after all

Quantum computing may actually be useful, after all

Physics / Quantum Physics

created Oct 09, 2009 | popularity 4.6 / 5 (35) | comments 9

(PhysOrg.com) -- In recent years, quantum computers have lost some of their luster. In the 1990s, it seemed that they might be able to solve a class of difficult but common problems — the so-called NP-complete ...


What Comes After Hard Drives?

What Comes After Hard Drives?

Electronics / Hardware

created Oct 23, 2009 | popularity 4.1 / 5 (34) | comments 36

(PhysOrg.com) -- The ability to store and retrieve data is an important component of today's computers, as well as other modern electronic devices such as cell phones, video game consoles, and camcorders. ...


Solar power generation around the clock

Solar power generation around the clock

Technology / Energy

created Nov 05, 2009 | popularity 4.6 / 5 (29) | comments 15

(PhysOrg.com) -- A Californian company, SolarReserve, is developing a solar power system that can store seven hours' worth of solar energy by focusing mirrors onto millions of gallons of molten salt, allowing ...


Holographic Disk

GE Shows Off 1TB DVD-Sized Disks at the Emerging Tech Conference

Technology / Hi Tech

created Sep 30, 2009 | popularity 4.7 / 5 (27) | comments 15

(PhysOrg.com) -- At the September '09 Emerging Tech Conference in Boston, GE announced it has been developing a 1TB DVD size disk that can be read by a modified Blu-ray player.


Proposed Quantum Computer Consists of Billions of Electron Spins

Proposed Quantum Computer Consists of Billions of Electron Spins

Physics / Quantum Physics

created Sep 09, 2009 | popularity 4.5 / 5 (26) | comments 23

(PhysOrg.com) -- While researchers have already demonstrated the building blocks for few-bit quantum computers, scaling these systems up to large quantum computers remains a challenge. One of the biggest problems ...


Toyota to release solar charger for electric vehicles

Toyota to release solar charger for electric vehicles

Technology / Energy

created Oct 27, 2009 | popularity 4.2 / 5 (26) | comments 10

(PhysOrg.com) -- Toyota is developing a solar charging station for electric cars and plug-in hybrids, making a green technology even greener. It has also designed a battery charger for mounting inside an electric ...


International scientists set boundaries for survival

International scientists set boundaries for survival

Space & Earth / Environment

created Sep 23, 2009 | popularity 3.7 / 5 (28) | comments 16

Human activities have already pushed the Earth system beyond three of the planet's biophysical thresholds, with consequences that are detrimental or even catastrophic for large parts of the world; six others ...


Scientists demonstrate 'universal' programmable quantum processor

Scientists demonstrate 'universal' programmable quantum processor

Physics / Quantum Physics

created Nov 15, 2009 | popularity 4.5 / 5 (23) | comments 11

Physicists at the National Institute of Standards and Technology have demonstrated the first "universal" programmable quantum information processor able to run any program allowed by quantum mechanics -- th ...


A road of no return

A road of no return: Team implements the first '1-way roads' for light

Physics / Optics & Photonics

created Oct 08, 2009 | popularity 4.7 / 5 (21) | comments 2

Light readily bounces off obstacles in its path. Some of these reflections are captured by our eyes, thus participating in the visual perception of the objects around us. In contrast to this usual behavior ...


Improved redox flow batteries for electric cars

Improved redox flow batteries for electric cars

Technology / Energy

created Oct 13, 2009 | popularity 4.6 / 5 (20) | comments 14

A new type of redox flow battery presents a huge advantage for electric cars. If the rechargeable batteries are low, the discharged electrolyte fluid can simply be exchanged at the gas station for recharged ...


Spin polarization achieved in room temperature silicon

Spin polarization achieved in room temperature silicon

Physics / General Physics

created Nov 27, 2009 | popularity 4.9 / 5 (18) | comments 0

(PhysOrg.com) -- A group in The Netherlands has achieved a first: injection of spin-polarized electrons in silicon at room temperature. This has previously been observed only at extremely low temperatures, ...


Researchers Develop Material That Could Boost Data Storage, Save Energy

Nanotechnology / Nanomaterials

created Oct 20, 2009 | popularity 4.5 / 5 (18) | comments 1

(PhysOrg.com) -- North Carolina State University engineers have created a new material that would allow a fingernail-size computer chip to store the equivalent of 20 high-definition DVDs or 250 million pages of text, far ...