Earlier use of magnets includes compasses. The Earth itself is a gigantic magnet, and a compass needle always will point to the north pole. Unfortunately, small magnets are found in common ...

The magnet system will serve as the electromagnetic ... energy future—even if it does not contribute to the power grid itself.

It also allows you to choose a song, which you can play by simply pressing a button built into the magnet itself. At $19, it would be a great way to integrate customization into a thoughtful gift ...

This article originally appeared on Treasure Coast Newspapers: Will St. Lucie's F.K. Sweet Magnet School reinvent itself with an oceanographic focus?