News tagged with power flow
In radiation 'ventriloquism,' electromagnetic waves travel backwards
Sep 23, 2008 |
4.5 / 5 (81) |
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(PhysOrg.com) -- Typically, electromagnetic waves travel away from their sources. For instance, a radar system emits radio waves that travel all the way to a target, such as a car or plane, before being reflected ...
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Spin polarization achieved in room temperature silicon
Nov 27, 2009 |
4.9 / 5 (18) |
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(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, ...
Facebook creates dual-class structure, but no IPO
Nov 24, 2009 |
1 / 5 (1) |
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(AP) -- Facebook has created a dual-class stock structure designed to give founder Mark Zuckerberg and other existing shareholders control over the company.
Selling chip makers on optical computing
Nov 24, 2009 |
4.6 / 5 (11) |
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(PhysOrg.com) -- Computer chips that transmit data with light instead of electricity consume much less power than conventional chips, but so far, they've remained laboratory curiosities. Professors Vladimir ...
Harnessing the power of salt, Norway tries osmotic power
Nov 23, 2009 |
4.2 / 5 (6) |
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After wind, sun, currents and tides, a company is preparing to make clean electricity by harnessing another natural phenomenon, the energy-unleashing encounter of freshwater and seawater.
Generating electricity from air flow
Nov 22, 2009 |
3.5 / 5 (11) |
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A group of researchers at the City College of New York is developing a new way to generate power for planes and automobiles based on materials known as piezoelectrics, which convert the kinetic energy of motion into electricity. ...
On the Crest of Wave Energy
Nov 19, 2009 |
3.5 / 5 (4) |
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(PhysOrg.com) -- The ocean is a potentially vast source of electric power, yet as engineers test new technologies for capturing it, the devices are plagued by battering storms, limited efficiency, and the ...
Liquid battery big enough for the electric grid?
Nov 19, 2009 |
4.4 / 5 (7) |
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(PhysOrg.com) -- There's one major drawback to most proposed renewable-energy sources: their variability. The sun doesn't shine at night, the wind doesn’t always blow, and tides, waves and currents fluctuate. ...
Battery Research Aims To Store Renewable Energy
Nov 19, 2009 |
4.1 / 5 (13) |
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The biggest chemical battery in the United States is located near Interstate 90 in the small town of Luverne, Minn. The 80 ton device -- the size of two tractor-trailers stacked on top of each other -- stores ...
New funding will stimulate alternative energy research
Nov 16, 2009 |
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Initiatives to provide geothermal heating or power at the Pueblo of Jemez and the New Mexico Institute of Mining and Technology campus are receiving Los Alamos National Laboratory assistance, thanks to recent American Reinvestment ...
Researchers customizing electric cars for cost-effective urban commuting
Nov 16, 2009 |
3.3 / 5 (7) |
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Researchers at Carnegie Mellon University's Robotics Institute have converted a 2001 Scion xB into an electric commuter vehicle that will serve as a test bed for a new community-based approach to electric vehicle design, ...
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