News tagged with resonance frequencies
Wagner's 'difficult' reputation unwarranted says research
Jul 01, 2009 |
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The composer Richard Wagner is well-known, even notorious, for writing operas that can challenge both performers and listeners. A new study published in the Journal of the Acoustic Society of America reveal ...
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Silicon could open the way for new terahertz technology
May 09, 2007 |
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Surface plasmon resonance is used for a variety of purposes including detecting protein or DNA and enhancing the sensitivity of spectroscopy. However, surface plasmon resonance requires a metal. Gold and silver are among ...
Sony develops highly efficient wireless power transfer system based on magnetic resonance
Oct 02, 2009 |
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Sony Corp. today announced the development of a highly efficient wireless power transfer system that eliminates the use of power cables from electronic products such as television sets. Using this system, ...
Molecular chords
Nov 16, 2007 |
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Max Planck researchers have for the first time analyzed the frequency of molecular resonance, in the same way as musicians analyze the notes of a chord. Their results have even been made audible.
Explained: The Discrete Fourier Transform
Nov 25, 2009 |
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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 ...
New technique for easily identifying explosives in luggage
Jan 24, 2007 |
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Scientists in Japan have developed a new technique for sensing explosives in luggage and landmines. The paper, published today in the Institute of Physics journal Superconductor Science and Technology descri ...
Innovative Composite Opens Terahertz Frequencies to Many Applications
Apr 17, 2008 |
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A frequency-agile metamaterial that for the first time can be tuned over a range of frequencies in the so-called “terahertz gap” has been engineered by a team of researchers from Boston College, Los Alamos National Laboratory ...
Scientists tailor light waves to desired frequencies
Jun 14, 2007 |
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The ability to control light is vital for many of today’s technologies, most notably in communications and advanced computing. For example, by using materials from mirrors to nanoparticles, scientists can ...
Micro honeycomb materials enable new physics in aircraft sound reduction
Sep 29, 2008 |
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Noise from commercial and military jet aircraft causes environmental problems for communities near airports, obliging airplanes to follow often complex noise-abatement procedures on takeoff and landing. It ...
Quantum dot lasers -- 1 dot makes all the difference
Apr 12, 2007 |
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Physicists at the National Institute of Standards and Technology and Stanford and Northwestern Universities have built micrometer-sized solid-state lasers in which a single quantum dot can play a dominant ...
Highlight: Mechanical energy dissipation in ultrananocrystalline diamond microresonators
Aug 12, 2009 |
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Researchers in the Nanofabrication and Devices group at the Argonne National Laboratory, in collaboration with the University of Pennsylvania, Advanced Diamond Technologies Inc., and Innovative Micro Technology, ...
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