iPhones made in 2014+ have a barometer for real-time elevation tracking. A barometer measures air pressure, which is crucial for calculating altitude changes. The native iPhone Compass app has a built ...

Every summer you go down the shore, but lately you’ve begun to notice that the beach seems narrower each time you visit. Is that the sea level rising, or is the sand just being swept away? Speaking of ...

In a pioneering work, NASA scientists have fitted the laser-catching telescope of the Ice, Cloud and land Elevation Satellite-2 (ICESat-2) into its place that will measure the elevation of Earth from ...

The Ziplevel Pro-2000 High Precision Altimeter is a precise pressurized hydrostatic altimeter that can replace laser levels on job sites. One person working alone can ...