News tagged with acoustic waves

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Vienna physicists create tap-proof waves

Scientists at the Vienna University of Technology (TU Vienna) have developed a method to steer waves on precisely defined trajectories, without any loss. This way, sound waves could be sent directly to a target, ...

Apr 04, 2011
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Going with the flow

Scientists who study tissue engineering and test new drugs often need to sort, rotate, move, and otherwise manipulate individual cells. They can do this by prodding the cells into place with a mechanical probe or coaxing ...

Sep 12, 2012
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A layer of tiny grains can slow sound waves

In some ways, granular material—such as a pile of sand—can behave much like a crystal, with its close-packed grains mimicking the precise, orderly arrangement of crystalline atoms. Now researchers at ...

Aug 05, 2013
5 / 5 (2) 2 | with audio podcast

How are droplets displaced by ultrasounds?

Understanding the physical mechanisms that enable a droplet to be displaced by propagating an acoustic wave along the substrate on which it lies is the hurdle that has been overcome by researchers from the Institut d'Electronique ...

Mar 31, 2010
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Beneath the Arctic polar cap

(Phys.org) —The Arctic polar cap has been melting at an astonishing rate over the past 20 or so years. In addition to causing higher sea levels and other environmental impacts, the decreasing surface is ...

Jun 12, 2014
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Navigating underwater using spiral sound

With the increased use of underwater robotics in both Navy and commercial applications, underwater navigation becomes more and more important. As researchers attempt to make these vehicles smaller and less ...

Nov 17, 2010
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