The reason for calibrating the compass on your iPhone comes down to accuracy. That's what makes it one of the iPhone features you need to know about before your next camping trip.After all, when ...

1. Lay your mat on a flat surface, beware of metal bolts on picnic tables which can affect the magnet. 2. With your compass pointing to true north, line the straight edge of the compass up with ...

Compass apps might seem like simple tools, but their functionality goes beyond just pointing north. These apps detect direction with surprising accuracy by leveraging the device's built-in ...

Compass apps haven’t changed much over the last ten or so years. They use your device’s accelerometer to detect direction. They sometimes need calibration, and magnetic cases can mess with them.

It's a shame how many people don't know how to use a compass, especially when the National Park Service lists it as a top 10 ...

Four Points of the Compass: The Unexpected History of Direction by Jerry Brotton Allen Lane £20, 208 pages Join our online book group on Facebook at FT Books Café and subscribe to our podcast ...

A compass contains a tiny piece of magnetized material that is attracted to its opposite pole on Earth, which is is located about 1000 miles south of the geographic north pole, due west from ...