Discover the fascinating world of magnetism and electricity with these hands-on science experiments! This video demonstrates how to build a homemade compass, create a simple speaker, construct an ...

The compass—oldest known navigating instrument—has been revolutionized. Last week Bendix Aviation Corp. announced a new automatic compass that makes the old magnetic needle* look as obsolete as a ...

The invention of an improved ship’s compass, of the earth-inductor type, was announced by the U. S. Bureau of Standards. It is said to possess many advantages over the usual magnetic type of ship’s ...