News tagged with acoustic waves

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Acoustic levitation made simple

A team of researchers at the University of São Paulo in Brazil has developed a new levitation device that can hover a tiny object with more control than any instrument that has come before.

Jan 05, 2015
4.8 / 5 (15) 1

Acoustic tweezers can position tiny objects

(PhysOrg.com) -- Manipulating tiny objects like single cells or nanosized beads often requires relatively large, unwieldy equipment, but now a system that uses sound as a tiny tweezers can be small enough ...

Aug 28, 2009
4.9 / 5 (11) 1

Bottling up sound waves

There's a new wave of sound on the horizon carrying with it a broad scope of tantalizing potential applications, including advanced ultrasonic imaging and therapy, acoustic cloaking, and levitation and particle ...

Aug 04, 2014
4.3 / 5 (12) 0

Acoustic levitation could be used on Mars

(PhysOrg.com) -- The presence of fine dust on the Moon and Mars may present problems for explorers, such as coating solar panels, penetrating seals and interfering with machinery. Human explorers would also ...

Jan 25, 2010 report
4.1 / 5 (12) 8 | with audio podcast

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 ...

Feb 25, 2014
4.6 / 5 (10) 1

Sound bullets in water

Sound waves are commonly used in applications ranging from ultrasound imaging to hyperthermia therapy, in which high temperatures are induced, for example, in tumors to destroy them. In 2010, researchers at Caltech led by ...

Nov 19, 2012
5 / 5 (9) 0 | with audio podcast

3D modeling of the Sun from the core to the surface

A team at the Astrophysics, Instrumentation and Modeling Laboratory (CEA/CNRS/Université Paris Diderot) has successfully modeled, in 3D, the effects of gravity waves in an extremely comprehensive simulation ...

May 14, 2014
4.6 / 5 (9) 7