Barometers are devices that measure atmospheric pressure (also known as “air pressure” or “barometric pressure”). You can use these readings to predict the weather. For instance, high pressure ...

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 ...

Some Android smartphones and tablets measure atmospheric pressure. More could provide forecasters with important info in areas with few official weather stations. Larry Greenemeier reports For a few ...