A group of international researchers have developed a way to use sound to generate different ... while other patterns caused the objects to move along circular or spiral paths.” ...

The speakers emit sound waves at frequencies ... could levitate only one object or move around particles as a group, a new device (left) uses ultrasonic waves to independently steer up to 25 ...

Levitating objects can spin, glide and collide together — no magnets or magic tricks required. Using steady streams of sound waves, engineers maneuvered hovering toothpicks, coffee granules and ...

They also levitated a wooden toothpick — something that had never been done before — while rotating it and moving it forward and backward. Sound waves exert pressure when they hit a surface ...

The platforms emit sound waves which move upward until they reach surface lying above, where they bounce back. When the downward-moving reflected waves overlap with the upward-moving source waves ...

A plastic plate above the chessboard reflects the sound; if the sounds waves are strong enough, objects can hover and move around between the board and the plate. Daniele Foresti, also a ...

Intertwined short vortices of sound waves moving in opposite directions would ... Caleap and his team built a single-source, circular array of transducers, or speakers, that generate ultrasound ...

First theorized in 1938, heat's wave-like flow through superfluids, known as "second sound", has proven difficult to directly ...

Physicists have taken direct images of heat moving in a wave-like manner in a phenomenon known as "second sound" for the ...

By varying the amplitude and phase of the sound waves, the researchers were able to vary the wavefronts that reached the ball. These waves then interact with the medium and cause the ball to move.