Of all the features you may have noticed on your iPhone, one that stands out is the Barometer. What does this tool do, and ...

When I wrote about the hidden sensors on Android phones, the two sensors that stood out the most were a magnetometer that turns your phone into a metal detector and a barometer, which is supposed to ...

When your ears pop on an airplane as it climbs away from the airport or when you drive up into the mountains, you're experiencing a change in air pressure. A barometer measures that air pressure and ...