News tagged with energy transfer
Study supports role of quantum effects in photosynthesis
(PhysOrg.com) -- Until a few years ago, photosynthesis seemed to be a straightforward and well-understood process in which plants and other organisms use sunlight to convert carbon dioxide and water into sugars, ...
Jan 25, 2012 |
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Artificial light-harvesting method achieves 100% energy transfer efficiency
(PhysOrg.com) -- In an attempt to mimic the photosynthetic systems found in plants and some bacteria, scientists have taken a step toward developing an artificial light-harvesting system (LHS) that meets one ...
Sep 01, 2011 |
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Could Exotic Matter Provide an Infinite Source of Energy?
(PhysOrg.com) -- Generally, scientists prefer to avoid the concept of perpetual motion. The idea of a machine that could produce movement that goes on forever, and using that movement to generate an endless ...
Sep 15, 2009 |
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'Dark plasmons' transmit energy
Microscopic channels of gold nanoparticles have the ability to transmit electromagnetic energy that starts as light and propagates via "dark plasmons," according to researchers at Rice University.
Feb 09, 2012 |
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SSDs the size of a postage stamp coming soon
(PhysOrg.com) -- One-terabyte (TB) solid state drives (SSDs) are expected to be released in a couple of years, and they will be about the size of the average postage stamp.
Feb 15, 2010 |
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Good vibrations lead to molecular revelation
(PhysOrg.com) -- A little luck and the wisdom to recognize what they were seeing helped Rice University researchers solve a molecular conundrum in a way that could be a boon to chemists.
Mar 14, 2011 |
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Scientists discover surprise in Earth's upper atmosphere
(PhysOrg.com) -- UCLA atmospheric scientists have discovered a previously unknown basic mode of energy transfer from the solar wind to the Earth's magnetosphere. The research, federally funded by the National ...
Space & Earth / Earth Sciences
Sep 10, 2009 |
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Stellar astrophysics explains the behavior of fast rotating neutron stars in binary systems
Pulsars are among the most exotic celestial bodies known. They have diameters of about 20 kilometres, but at the same time roughly the mass of our sun. A sugar-cube sized piece of its ultra-compact matter ...
Feb 02, 2012 |
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Thermal storage gets more solar on the grid
(PhysOrg.com) -- It's 4:45 on a sweltering August afternoon, and the rooftop solar panels are starting to lose juice. The sun's lower angles and that huge cottonwood tree are interfering with the efficient ...
Technology / Energy & Green Tech
Feb 15, 2012 |
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Innovative superconductor fibers carry 40 times more electricity
Wiring systems powered by highly-efficient superconductors have long been a dream of science, but researchers have faced such practical challenges such as finding pliable and cost-effective materials. Now ...
Sep 07, 2011 |
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Artificially structured metamaterials may boost wireless power transfer
Scientists calculate that a "perfect lens," a slab of artificial material engineered to focus electromagnetic fields in ways that natural materials can't, may increase the efficiency of some wireless power transfer systems.
Mar 13, 2012 |
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Sulfur in every pore: Improved batteries with carbon nanoparticles
From smartphones to e-bikes, the number of mobile electronic devices is steadily growing around the world. As a result, there is an increased need for batteries that are small and light, yet powerful. As the ...
Nanotechnology / Nanomaterials
Apr 10, 2012 |
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Switchable Nanostructures Made with DNA
(PhysOrg.com) -- Scientists at the U.S. Department of Energy’s Brookhaven National Laboratory have found a new way to use a synthetic form of DNA to control the assembly of nanoparticles — this time resulting ...
Nanotechnology / Bio & Medicine
Dec 21, 2009 |
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Great balls of evolution: Microbiologists evolve microorganisms to cooperate in new way
University of Massachusetts Amherst microbiologists Derek Lovley, Zarath Summers and colleagues report in the Dec. 2 issue of Science that they have discovered a new cooperative behavior in anaerobic bacteria, known as int ...
Dec 02, 2010 |
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Shedding light on nature's nanoscale control of solar energy
Nature's process for storing solar energy occurs in light-absorbing protein complexes called photosynthetic reaction centers (RCs). Across billions of years of evolution, Nature has retained a common light-absorbing ...
Apr 18, 2012 |
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Energy transformation
In physics, the term [energy] describes the amount of work which may potentially be done by forces within a system. Changes in energy in systems can only be accomplished by adding or subtracting energy from them, as energy is a quantity which is conserved. (Loosely, changes in the energy of systems also coincide with changes in the system's mass).
Energy in a system may be transformed so that it resides in a different state. Energy in many states may be used to do many varieties of physical work. Energy may be used in natural processes or machines, or else to provide some service to society (such as heat, light, or motion). For example, an internal combustion engine converts the potential chemical energy in gasoline and oxygen into heat, which is then transformed into the propulsive energy (kinetic energy that moves a vehicle. A solar cell converts solar radiation into electrical energy that can then be used to light a bulb or power a computer.
The generic name for a device which converts energy from one form to another is transducer.
For more information about Energy transformation, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
