Want to find hidden metal objects with ease? This simple magnet trick is a game-changer! With just a few basic materials, you'll be able to detect metal objects that were previously invisible. Whether ...

Producing oxygen is tricky under weightless conditions in space. But the addition of a simple magnet can simplify the process of electrolysis, scientists report. The electrolysis system aboard the ...

A small black box rested on a stand. From its top projected a metal rod approximately twelve inches high; from its side projected a horizontal metal ring. Before the box stood a thin, blond Russian, ...