This reliance on the earth's magnetic field does raise a couple ... built into the baseplate is helpful when using a compass in conjunction with a map. According to REI, the primary features ...

A magnetic field is invisible, but it can be detected using a magnetic compass. A compass contains a small bar magnet on a pivot so that it can rotate. The compass needle points in the direction ...

Researchers at the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) have developed an innovative method ...

Such reversals in the Earth's magnetic field, they'd tell you ... So hang on to your compass. For the foreseeable future, it should work as advertised.—Peter Tyson ...

Magnetotactic bacteria synthesize magnetic iron nanominerals, which function as tiny compasses that allow the microbes to navigate using Earth's geomagnetic field. Earth's iron cycle is a very ...