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.

X-ray tomography, or the CAT scan, was invented in the 1960s and has become one of the main staples of medical imaging. Since then, many other tomographies or modalities have been introduced, all ...

It may seem straight out of "Star Trek," but it's real: Scientists have created a sonic "tractor beam" that can pull, push and pirouette objects that levitate in thin air. The sonic tractor beam ...

We may not have real hoverboards yet, but engineers have just invented a device that can levitate tiny objects using only the power of sound — a sonic tractor beam. Researchers say the technology ...

Radar is getting hot, especially with advancements that promise object identification/classification and higher latitude resolution — something traditional radars ...

Researchers have developed a metamaterial made of paper and aluminum that can manipulate acoustic waves to more than double the resolution of acoustic imaging, focus acoustic waves, and control the ...