How does a magnetic compass work? Well, it’s all down to basic physics and human ingenuity. The key component of a standard baseplate compass is its magnetized needle, which is allowed to spin freely ...

Although the Earth’s magnetic field is reliable enough for navigation and is also essential for blocking harmful solar emissions and for improving radio communications, it’s not a uniform strength ...

A new technique uses quantum sensors to enable precise measurements of magnetic fields in different directions. A new way of measuring atomic-scale magnetic fields with great precision, not only up ...

Researchers at the University of Colorado Boulder (CU Boulder) have made a significant advance in magnetic field measurement.

Illustration shows how a smartphone magnetometer can measure a host of biomedical properties in liquid samples using a magnetized hydrogel. Nearly every modern cellphone has a built-in compass, or ...