Vortex
hideA vortex (plural: vortices) is a spinning, often turbulent, flow of fluid. Any spiral motion with closed streamlines is vortex flow. The motion of the fluid swirling rapidly around a center is called a vortex. The speed and rate of rotation of the fluid are greatest at the center, and decrease progressively with distance from the center.
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News tagged with vortex
Magnetic mixing creates quite a stir (w/ Video)
Oct 27, 2009 |
4.8 / 5 (6) |
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Sandia researchers have developed a process that can mix tiny volumes of liquid, even in complicated spaces.
Stirred, not shaken: Bio-inspired cilia mix medical reagents at small scales
Jun 30, 2009 |
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The equipment used for biomedical research is shrinking, but the physical properties of the fluids under investigation are not changing. This creates a problem: the reservoirs that hold the liquid are now ...
Virus filters for medical diagnosis
Jun 25, 2009 |
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In biomedicine and biotechnology the smallest, complex, compound sample quantities must be reliably processed. Microsystems with new mechanisms of action for pumping, filtering and separating will manage this ...
Voyage to the centre of the 'Plastic Vortex'
Space & Earth / Earth Sciences
May 25, 2009 |
4.6 / 5 (65) |
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A group of conservationists and scientists is due to set sail for an obscure corner of the Pacific Ocean in the coming months to explore a vast swirl of waste known as the "Plastic Vortex."
World's Largest Tornado Experiment Heads for Great Plains (w/Videos)
Space & Earth / Earth Sciences
May 05, 2009 |
4.8 / 5 (5) |
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The largest and most ambitious tornado study in history will begin next week, as dozens of scientists deploy radars and other ground-based instruments across the Great Plains to gain a better understanding ...
Magnetic Vortex Switch Leads to Electric Pulse
Apr 08, 2009 |
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(PhysOrg.com) -- Researchers at the University of Arkansas have shown that changing the chirality, or direction of spin, of a nanoscale magnetic vortex creates an electric pulse, suggesting that such a pulse might be of use ...
New control of nanoscale 'magnetic tornadoes' holds promise for data storage
Feb 02, 2009 |
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(PhysOrg.com) -- At the human scale, the tightly wrapped spinning columns of air in a tornado contain terrifying destructive power that ravages communities. At the nanoscale, however, closely coiled magnetic ...
'Fish technology' draws renewable energy from slow water currents
Nov 20, 2008 |
4.5 / 5 (42) |
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(PhysOrg.com) -- Slow-moving ocean and river currents could be a new, reliable and affordable alternative energy source. A University of Michigan engineer has made a machine that works like a fish to turn ...
2008 ozone hole larger than last year
Space & Earth / Earth Sciences
Oct 07, 2008 |
3 / 5 (6) |
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The 2008 ozone hole – a thinning in the ozone layer over Antarctica – is larger both in size and ozone loss than 2007 but is not as large as 2006.
