News tagged with frequency
Unique approach to materials allows temperature-stable circuits
(Phys.org) -- Sandia National Laboratories researcher Steve Dai jokes that his approach to creating materials whose properties won’t degenerate during temperature swings is a lot like cooking — mixing ...
5 hours ago |
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Research team uses a laser frequency comb to calibrate spectrographs
(Phys.org) -- In the never ending quest to find out if there is life out there beyond our own planet, astronomers, astrophysicists and other researchers use all manner of tools to scan the sky looking for ...
6 hours ago |
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Novel holographic antenna designs and uses
Holographic antennas first studied around 40 years ago are again a hot topic given the potential of holographic images for a variety of applications. EU researchers developed novel prototype devices based ...
May 30, 2012 |
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Frequency stabilization in nonlinear nanomechanical oscillators
Using Center for Nanoscale Materials (CNM) expertise in the design and fabrication of micro- and nanoscale devices, a new strategy for engineering low-frequency noise oscillators capitalizes on the intrinsic ...
May 28, 2012 |
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Splitting the SKA - why a dual-site setup is a win for everyone
The Square Kilometre Array (SKA) is a concept that's been slowly growing and evolving since 1991. But recently this ambitious project took a giant leap towards reality with the announcement of a SKA site decision.
Space & Earth / Space Exploration
May 28, 2012 |
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Slip-and-slide power generators
Researchers from Vestfold University College in Norway have created a simple, efficient energy harvesting device that uses the motion of a single droplet to generate electrical power.
May 24, 2012 |
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Scientists design indoor navigation system for blind
University of Nevada, Reno computer science engineering team Kostas Bekris and Eelke Folmer presented their indoor navigation system for people with visual impairments at two national conferences in the past ...
May 18, 2012 |
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Invisibility carpet cloak can hide objects from visible light
(PhysOrg.com) -- Most of the invisibility cloaks that have been demonstrated to date conceal objects at frequencies that are not detectable by the human eye. Designing invisibility cloaks that can conceal ...
Jun 15, 2011 |
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Scientists discover new water waves
(PhysOrg.com) -- By precisely shaking a container of shallow water, researchers have observed wave behavior that has never been seen before. In a new study, Jean Rajchenbach, Alphonse Leroux, and Didier Clamond ...
Jul 19, 2011 |
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Shape-changing liquid metal antenna could lead to responsive electronic devices
(PhysOrg.com) -- Researchers have fabricated a fluidic antenna that can change its shape, and therefore the frequency at which it resonates, in response to pressure in a controlled and predictable manner. ...
Jul 21, 2011 |
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Scientists examine possibility of a phonon laser, or 'phaser'
(PhysOrg.com) -- While the optical laser celebrated its 50th anniversary earlier this year, some scientists have been working on a new type of coherent beam amplifier for sound rather than light. Scientists ...
Sep 07, 2010 |
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Graphene transistor could advance nanodevices
(PhysOrg.com) -- For years, scientists and researchers have been looking into the properties of carbon nanotubes and graphene for use in nanoelectronics. "There is no real mass application of devices based ...
May 11, 2010 |
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Ultralow-power memory uses orders of magnitude less power than other devices
(PhysOrg.com) -- As RFID tags are becoming more widespread for tracking and identifying almost anything, researchers are continuing to develop cheap, ultralow-power memory devices for these applications. In ...
Aug 26, 2010 |
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Long-distance quantum communication gets closer as physicists increase light storage efficiency by an order of magnitude
(PhysOrg.com) -- In a new demonstration of reversible light storage, physicists have achieved storage efficiencies of more than a magnitude greater than those offered by previous techniques. The new method could be useful ...
Mar 01, 2010 |
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Fiber-wireless (Fi-Wi) to provide ultra-high-speed, short-range communication
(PhysOrg.com) -- By looking at the latest electronic communication devices that have emerged over the past few years, it's clear that the trend of smaller, portable devices is strong and expected to continue. ...
Mar 09, 2010 |
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Frequency
Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency. The period is the duration of one cycle in a repeating event, so the period is the reciprocal of the frequency. For example, if a newborn baby's heart beats at a frequency of 120 times a minute, its period (the interval between beats) is half a second.
For more information about Frequency, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
