Easing Atmospheric CO2 Levels Using Nanotubes and Sunlight
Nanotechnology / Nanomaterials
Feb 16, 2009 |
4 / 5 (23) |
32
(PhysOrg.com) -- Researchers at The Pennsylvania State University have determined a way to use arrays of nanotubes in a solar-based process to convert carbon dioxide and water into methane and other hydrocarbon ...
Nanocomposite material provides photonic switching
Feb 09, 2009 |
4.2 / 5 (9) |
0
(PhysOrg.com) -- Integrated photonic devices represent the wave of future technology. These devices will be extremely small, making use of photons on the nanoscale, and (hopefully) be very efficient in terms of power use. ...
New Smart Material Bends Under Internal Heat Source
Feb 06, 2009 |
4 / 5 (9) |
6
(PhysOrg.com) -- Scientists have developed a new smart material that can bend under the influence of an internal heat source. The material could be used as an aerodynamic flap in cars, in order to stabilize ...
Strategies for Retailers Fighting Price Wars
Technology / Computer Sciences
Feb 04, 2009 |
2.9 / 5 (10) |
4
(PhysOrg.com) -- All retail companies want to maximize their profits, while at the same time maintaining high market share compared with their competitors. One way to do this is by promising to offer the lowest ...
Shocking: Environmental chemistry affects ferroelectric film polarity the same way electric voltage does
Feb 02, 2009 |
4.2 / 5 (9) |
2
(PhysOrg.com) -- “Ferroelectric materials are interesting scientifically, and, while they are used for some things now, they are potentially useful for even more applications in the future,” Brian Stephenson tells PhysOrg.com. Stephe ...
New, Unusual Semiconductor is a Switch-Hitter
Jan 30, 2009 |
4.7 / 5 (17) |
8
(PhysOrg.com) -- A research group in Germany has discovered a semiconducting material that can switch its semiconducting properties -- turning from one type of semiconductor to another -- via a simple change in temperature. ...
The Power of Light: Moving Macroscopic Amounts of Matter
Jan 29, 2009 |
3.3 / 5 (12) |
17
(PhysOrg.com) -- Since 1970, scientists have been working with “optical tweezers” - lasers that move microscopic amounts of matter using forces originating from the light matter interaction. Now, for the first ...
New Data Suggests We Don’t Live in a Void, and Supports Dark Energy
Jan 28, 2009 |
3.9 / 5 (36) |
75
(PhysOrg.com) -- An alternative proposal to dark energy in which the Earth sits near the center of a large void is undergoing scrutiny, and the results show that void models fit poorly with observed data. ...
New Limits on the Origin of Dark Matter
Jan 27, 2009 |
4.5 / 5 (22) |
21
(PhysOrg.com) -- Determining the identity of dark matter, the mysterious stuff thought to make up the vast majority of matter in the universe, is one of the most fundamental challenges facing modern physics. Through theory ...
Carbon-Nanotube Memory that Really Competes
Jan 26, 2009 |
4.2 / 5 (21) |
4
(PhysOrg.com) -- Researchers in Finland have created a form of carbon-nanotube based information storage that is comparable in speed to a type of memory commonly used in memory cards and USB "jump" drives.
Scientists use Brownian Motion to Explore How Birds Flock Together
Jan 23, 2009 |
4.6 / 5 (27) |
11
(PhysOrg.com) -- How do thousands of fish swim together in giant schools, seemingly moving as a single body? Flocks of birds, herds of beasts, and a variety of other animals in nature seem to share this same ...
Why do the majority of people never get cancer?
Jan 22, 2009 |
4.5 / 5 (41) |
37
(PhysOrg.com) -- Every year, millions of people are diagnosed with cancer - a remarkably high number. But what about the flipside of those statistics? That is, two out of three people never get cancer, and ...
Fabricating 3D Photonic Crystals
Jan 21, 2009 |
4.3 / 5 (8) |
1
(PhysOrg.com) -- “In photonic crystals, the ability to control the structure of a material in full three dimensional space, allows you to control the way that light flows through it,” John Rogers tells PhysOrg.com. “This ...
'Core-Shell' Silicon Nanowires May Improve Lithium-Ion Batteries
Jan 20, 2009 |
4 / 5 (12) |
9
(PhysOrg.com) -- Researchers have found a way to incorporate silicon into the structure of rechargeable lithium-ion batteries, which are used to power a wide variety of portable electronic devices, including ...
Quantum communication through synergy
Jan 19, 2009 |
4.4 / 5 (11) |
0
(PhysOrg.com) -- When most people think of quantum communication, they think in terms of private communication channels - the ability to send messages without a third-party deciphering them. Indeed, quantum cryptography represents ...
