Like being able to whip up an impromptu electromagnetic crane to retrieve an AirPod dropped out a window. Apartment dweller [Tyler Efird]’s tale of woe began with a wee-hours 3D print in need of ...

Unlike the skating pond,Dancing Paper has moving parts (other than the cranes themselves). Under the plastic surface are a series of individually controlled electromagnets. Each of the ...

Many objects around you contain electromagnets. They are found in electric motors and loudspeakers. Electric bells like the ones used in most schools also contain an electromagnet. The slideshow ...