News tagged with low frequencies
New nanogenerator may charge iPods and cell phones with a wave of the hand
Mar 26, 2009 |
4.4 / 5 (17) |
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Imagine if all you had to do to charge your iPod or your BlackBerry was to wave your hand, or stretch your arm, or take a walk? You could say goodbye to batteries and never have to plug those devices into ...
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Fine-tuned: A wholly new approach to tuning a laser's frequency
12 hours ago |
4.8 / 5 (6) |
1
(PhysOrg.com) -- For more than 30 years, scientists have been trying to harness the power of terahertz radiation. Tucked between microwaves and infrared rays on the electromagnetic spectrum, terahertz rays ...
STPSat-1 successfully completes extended mission
Space & Earth / Space Exploration
Dec 02, 2009 |
5 / 5 (1) |
0
The STPSat-1, built for the Department of Defense (DoD) Space Test Program (STP) and operated by the DoD STP for the first year then transitioned to NRL for the last 16 months, was decommissioned on October ...
Pickin' Up Good Vibrations to Produce Green Electricity
Nov 30, 2009 |
4.1 / 5 (11) |
2
(PhysOrg.com) -- Vibrations from the environments we live and work in could be much more widely harnessed as a clean source of electricity, due to cutting-edge UK research.
Explained: The Discrete Fourier Transform
Nov 25, 2009 |
4.2 / 5 (36) |
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(PhysOrg.com) -- In 1811, Joseph Fourier, the 43-year-old prefect of the French district of Isčre, entered a competition in heat research sponsored by the French Academy of Sciences. The paper he submitted ...
Microwave Meter Measures Moisture and Density of In-Shell Peanuts
Nov 20, 2009 |
not rated yet |
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(PhysOrg.com) -- A microwave meter that instantaneously measures both moisture and density of in-shell peanuts has been developed by Agricultural Research Service (ARS) scientists, making it easier and faster ...
'Fingerprinting' RFID Tags: Researchers Develop Anti-Counterfeiting Technology
Nov 19, 2009 |
4 / 5 (3) |
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(PhysOrg.com) -- Engineering researchers at the University of Arkansas have developed a unique and robust method to prevent cloning of passive radio frequency identification tags. The technology, based on one or more unique ...
Workplace BPA exposure increases risk of male sexual dysfunction
Nov 11, 2009 |
not rated yet |
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High levels of workplace exposure to Bisphenol-A may increase the risk of reduced sexual function in men, according to a Kaiser Permanente study appearing in the journal Human Reproduction.
Scientists track swine flu virus for tiny changes that would cause big problems
Nov 04, 2009 |
not rated yet |
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As the H1N1 flu virus spreads at breakneck speed, a team of scientists are close behind. They are watching its evolution through a cutting-edge technology in hopes of answering the question: Where did it come from -- and ...
New Celestial Map Gives Directions for GPS
Space & Earth / Space Exploration
Oct 29, 2009 |
4.5 / 5 (4) |
0
(PhysOrg.com) -- Many of us have been rescued from unfamiliar territory by directions from a Global Positioning System (GPS) navigator. GPS satellites send signals to a receiver in your GPS navigator, which ...
Trees facilitate wildfires as a way to protect their habitat
Oct 28, 2009 |
4.5 / 5 (2) |
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Fire is often thought of something that trees should be protected from, but a new study suggests that some trees may themselves contribute to the likelihood of wildfires in order to promote their own abundance ...
List of search results for low frequencies
