News tagged with acoustic

Scientists twist sound with metamaterials

A Chinese-U.S. research team is exploring the use of metamaterials—artificial materials engineered to have exotic properties not found in nature—to create devices that manipulate sound in versatile and ...

dateFeb 25, 2014 in General Physics
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Designing an acoustic diode

Most people know about ultrasound through its role in prenatal imaging: those grainy, grey outlines of junior constructed from reflected sound waves. A new technology called an "acoustic diode," envisioned ...

dateNov 01, 2013 in General Physics
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A unique glance into the Sun's atmosphere

Three months after the flight of the balloon-borne solar observatory Sunrise, scientists from the Max Planck Institute for Solar System Research (MPS) in Germany now present unique insights into the central ...

dateSep 25, 2013 in Space Exploration
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Clot-dissolving bubbles to treat strokes?

(Medical Xpress)—Researchers are using computer simulations to investigate how ultrasound and tiny bubbles injected into the bloodstream might break up blood clots, limiting the damage caused by a stroke ...

dateSep 25, 2013 in General Physics
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Making frequency-hopping radios practical

The way in which radio spectrum is currently allocated to different wireless technologies can lead to gross inefficiencies. In some regions, for instance, the frequencies used by cellphones can be desperately ...

dateMay 15, 2013 in Semiconductors
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