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 ...

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 ...

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 ...

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 ...