A pint-sized gun that shoots a spray of molten metal is saving U.S. wartime industry hundreds of thousands of dollars and hours of labor. The Army & Navy have 750 of these hot-metal guns in use this ...

The metal has been used since ancient times. From the Bronze Age until the 18th century, when it was supplanted by porcelain, tin was the main ingredient in alloys used for kitchenware. Yet it is also ...

A miniature, shape-shifting robot can liquefy itself and reform, allowing it to complete tasks in hard-to-access places and even escape cages. It could eventually be used as a hands-free soldering ...