Researchers at the California Institute of Technology (Caltech) have built a device that produces highly focused, high-amplitude acoustic signals dubbed "sound bullets." Called a nonlinear acoustic ...

Taking inspiration from a popular executive toy ("Newton's cradle"), researchers have built a device -- called a nonlinear acoustic lens -- that produces highly focused, high-amplitude acoustic ...

An old toy has inspired a powerful new weapon that could destroy submarines or annihilate tumours. Using a modified version of Newton's cradle, a series of stainless steel balls suspended by fishing ...

PASADENA, Calif.—Taking inspiration from a popular executive toy ("Newton's cradle"), researchers at the California Institute of Technology (Caltech) have built a device—called a nonlinear acoustic ...

Scientists have created a powerful acoustic weapon called a "sound bullet" that could help kill cancer cells and down hostile submarines in war. Here's how the system is constructed: researchers lined ...

TimesMachine is an exclusive benefit for home delivery and digital subscribers. About the Archive This is a digitized version of an article from The Times’s print archive, before the start of online ...

This article was written by Discover'sAndrew Moseman. Doctors already use concentrated sound waves to see through solid tissue and take a look inside the body, as with ultrasound scans. But in this ...

A new machine inspired by a common office toy could one day allow doctors to zap cancerous tumors using "sound bullets," scientists say. Dubbed an acoustic lens, the device could also be used to ...