News tagged with mechanical vibrations
Mechanical motion rectifier leads to better energy harvesting
(Phys.org) -- Mechanical energy is all around us, whether in the form of a vehicle's vibrations, ocean waves, or vibrating train tracks. However, much of this energy is irregular and oscillatory - for example, road bumps ...
Apr 25, 2012 |
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App turns tablet into math aid for visually impaired students (w/ video)
Without looking down, Kira runs her index finger across the screen of an Android tablet that she is holding in her lap. For the occasion, she has painted her fingernails bright pink. When her finger touches ...
Mar 05, 2012 |
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Heart-powered pacemaker could one day eliminate battery-replacement surgery
A new power scheme for cardiac pacemakers turns to an unlikely source: vibrations from heartbeats themselves.
Mar 02, 2012 |
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UK scientists develop optimum piezoelectric energy harvesters
Scientists working as part of the Metrology for Energy Harvesting Project have developed a new model to deliver the maximum power output for piezoelectric energy harvesters.
Mar 02, 2012 |
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Seeing sound: Team develops noninvasive method to visualise sound propagation
High-performance loudspeaker manufacturers have been able to improve sound quality dramatically over the years, but still face the issue of dead spots.
Nov 08, 2011 |
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First self-powered device with wireless data transmission
Scientists are reporting development of the first self-powered nano-device that can transmit data wirelessly over long distances. In a study in ACS's journal Nano Letters, they say it proves the feasibility of a f ...
Jun 15, 2011 |
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Portable ultrasound now available for horses
Healing for horses has gone portable.
Jun 02, 2011 |
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Quantum explanation for how we smell gets new support
(PhysOrg.com) -- Since 1996, when biophysicist Luca Turin first suggested that quantum mechanics may help explain how we smell various odors, the idea has met with controversy. In the past 15 years, some studies ...
Mar 28, 2011 |
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How long does a tuning fork ring? 'Quantum-mechanics' solve a very classical problem
Austrian and German researchers at the University of Vienna and Technische Universitaet Muenchen have solved a long-standing problem in the design of mechanical resonators: the numerical prediction of the ...
Mar 08, 2011 |
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Virtual laboratory predicts train vibrations
The construction of new rail lines, or the relocation of old ones underground, has increased society's interest over recent years in the vibrations produced by trains, especially among people who live or work ...
Technology / Computer Sciences
Feb 09, 2011 |
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Controlling the flow of light with a novel optical transistor
In an article appearing on Nov. 11 in the journal Science, researchers at EPFL and the Max Planck Institute of Quantum Optics announce the discovery of a method for coupling photons and mechanical vibrations that c ...
Nov 11, 2010 |
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Nanogenerators grow strong enough to power small conventional electronics (w/ Video)
Blinking numbers on a liquid-crystal display (LCD) often indicate that a device's clock needs resetting. But in the laboratory of Zhong Lin Wang at Georgia Tech, the blinking number on a small LCD signals ...
Nov 08, 2010 |
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Explained: Phonons
For the engineers who design cell phones, solar panels and computer chips, it’s increasingly important to be able to control the way heat moves through the crystalline materials — such as silicon — that these ...
Jul 08, 2010 |
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How 'spooky' quantum mechanical laws may affect everyday objects (Update)
(PhysOrg.com) -- In a study published in the July 1 issue of the journal Nature, Dartmouth researchers describe one example of the microscopic quantum world influencing--even dominating, they say--the behavi ...
Jul 01, 2010 |
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New mechanism for superconductivity discovered in iron-based superconductors
(PhysOrg.com) -- A research team at RIKEN, Japan’s flagship research organisation has experimentally determined the mechanism underlying the formation of electron pairs in iron-based high-temperature superconductors. ...
Apr 22, 2010 |
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