News tagged with tunnel
A mechanical model of vocalization
Nov 23, 2009 |
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When people speak, sing, or shout, they produce sound by pushing air over their vocal folds -- bits of muscle and tissue that manipulate the air flow and vibrate within it. When someone has polyps or some other problem with ...
Generating electricity from air flow
Nov 22, 2009 |
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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. ...
Is your cellphone a source of pain?
Oct 05, 2009 |
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Jill Garonzik Kelley of Allen, Texas, is thankful for unlimited minutes on her cellphone. After all, she did rack up 4,500 last month. What the 41-year-old advertising strategist is not as happy about is the pain after a ...
Surgery provides modest benefit over non-surgical treatment for patients with carpal tunnel syndrome
Sep 25, 2009 |
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(PhysOrg.com) -- While surgery for carpal tunnel syndrome in patients without an indication of severe nerve damage (denervation) provides better outcomes than non-surgical treatment, the clinical relevance of this difference ...
Test of Futuristic X-48C is Historic Wind Tunnel's Swan Song
Space & Earth / Space Exploration
Sep 18, 2009 |
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(PhysOrg.com) -- A historic wind tunnel at NASA's Langley Research Center in Hampton, Va., has been pressed into service one last time to help test the prototype of a new, more fuel-efficient, quieter aircraft ...
Tunnels concentrate air pollution by up to 1,000 times
Aug 27, 2009 |
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A toxic cocktail of ultrafine particles is lurking inside road tunnels in concentration levels so high they have the potential to harm drivers and passengers, a new study has found.
Giant extinct snake may -- or may not -- shed light on ancient climate
Other Sciences / Archaeology & Fossils
Aug 03, 2009 |
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(PhysOrg.com) -- Snakes coil up when they sense danger. Some snakes curl up in order to spring into action and strike. Snakes may also coil to preserve body heat, and this warming behavior could affect our understanding of ...
Obesity raises risk of complications in pregnancy, study shows
Jul 16, 2009 |
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Expectant mothers who are obese are much more likely to suffer from minor complications such as heart burn and chest infections during pregnancy, a study suggests.
The 'other' cruciate ligament: Newer treatments for PCL tears
Jul 01, 2009 |
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While major advances have been made in the understanding of posterior cruciate ligament (PCL) anatomy and reconstruction, a literature review published in the July 2009 issue of the Journal of the American Academy of Orthopaedic Su ...
Tunnel vision: Border Patrol agents to spot tunnels with advanced ground-penetrating radar
Jun 29, 2009 |
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Criminals of all kinds are digging tunnels along the U.S. border at a fast and furious pace. Of every tunnel ever discovered by U.S. border patrol agents, 60 percent have been found in the last three years. ...
Bumblebee flight 'triumph of power over finesse'
May 07, 2009 |
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(PhysOrg.com) -- Brute force rather than aerodynamic efficiency is the key to bumblebee flight, Oxford University scientists have discovered.
Physicists Detect Single-Electron Tunneling with Quantum Dots
May 06, 2009 |
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(PhysOrg.com) -- Detecting the coherent motion of a single electron is a challenge, for the simple reason of scale: the timescale of the coherent motion of a single-electron wave function is in the picosecond ...
A 'hands-on' approach to computers
Apr 06, 2009 |
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(PhysOrg.com) -- At a time when ever more aspects of our lives are moving toward the virtual, online world -- stores, newspapers, games and even social interactions -- Hiroshi Ishii seems to be swimming against ...
Space shuttle experiment to provide insights into turbulence, heating
Mar 23, 2009 |
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A Purdue University aerospace researcher helped shape plans to install a new experiment currently on the space shuttle Discovery to collect data for controlling deadly friction and heating in the design of ...
High-speed signal mixer demonstrates capabilities of transistor laser
Mar 19, 2009 |
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(PhysOrg.com) -- Scientists at the University of Illinois have successfully demonstrated a microwave signal mixer made from a tunnel-junction transistor laser. Development of the device brings researchers ...
