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

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 ...

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 ...