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 ...

Acoustic lenses are employed in a variety of applications, from biomedical imaging and surgery to defense systems and damage detection in materials. Focused acoustic signals, for example, enable ...

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 ...

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 ...

A laser is shone at the intended target, the bullet is fired, and the chip uses the fins to adjust the bullet's trajectory in mid-flight. It doesn't offer quite the same implications as the totally ...

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 ...

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, ...