Nearly every modern cellphone has a built-in compass, or magnetometer, that detects the direction of Earth's magnetic field, providing critical information for navigation. Now a team of researchers ...

The magnetometer in your smartphone helps you navigate by powering the device's digital compass. Now researchers have found a way to use it to navigate body chemistry by reading your glucose levels, ...

We just got a couple images from one of our Apple ninjas and it appears to show a compass option in one of the debugging menus. Our source says this is obviously for a built-in magnetometer in the ...

The iPhone Compass is a handy tool that can help you navigate unfamiliar places, level objects, and even detect magnetic fields. However, the compass may sometimes not work correctly due to various ...

If shrunken down to micron size, a compass needle could wobble. (Courtesy: iStockphoto/tobias machhaus) A tiny magnetic needle just 10 μm long could be used to create a magnetic-field sensor that – if ...

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 ...