1660: Robert Boyle is perhaps the first to predict weather using the barometer. Boyle suggests that the process of combustion and respiration are due to a "nitrous" substance in air. He also ...

So, here's how to measure elevation with your iPhone. You can use the compass app to determine direction, altitude, and ...

or "pressure" of air, is called atmospheric pressure. Toriccelli also went on to develop the mercury barometer, an instrument used to measure atmospheric pressure. A barometer also monitors ...

This segment originally appeared in today's edition of the Morning Brief newsletter. Sign up here to get weekday updates from The Weather Channel and our meteorologists. A barometer is a tool ...