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 ...

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 ...