An old toy has inspired a powerful new weapon that could destroy submarines or annihilate tumors. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content.

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 ...

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 ...