Tractor beams have hit the big time. A newly constructed device generates a beam of concentrated sound that, for the first time, exerts a continuous, perceptible tug on objects large enough to see.

Researchers recently created an acoustic hologram, or a 3D sound field projected onto a 2D space, which can be used as acoustic tweezers, cages and twisters that manipulate objects as they levitate in ...

Researchers have come up with a new and improved way to levitate objects using sound waves alone, an impressive feat of mixed-reality technology that could pave the way for some seriously futuristic ...

An artist's rendering shows an acoustic hologram trapping a particle over a levitation device. Courtesy Asier Marzo, Bruce Drinkwater and Sriram Subramanian It's no Mattel hoverboard. But a device ...

Acoustic levitation is some day going to be used to brush the dust off machinery on Mars. Learn why sound can lift objects off the ground and see an acoustic levitation chamber in action. “Sticks and ...

A study published last month by University of Minnesota mechanical engineering researchers has the potential to make waves – ultrasonic waves, to be exact – in fields like surgery and manufacturing. U ...

A metamaterial is a composite material that exhibits unique properties due to its structure, and now researchers have used one featuring a small sawtooth pattern on its surface to move and position ...

The Oxford English Dictionary defines an object as “something placed before or presented to the eyes or other senses”, which conveys the idea that objects correspond to sensory experiences that are ...

Reflections of sound off a surface (top), off an object on it (middle) and off a cloaked object (bottom) Scientists have shown off a "cloaking device" that makes objects invisible - to sound waves.