Do you know what causes wind? Well, broadly speaking it’s the sun... but more specifically, how the sun unevenly heats the Earth’s surface. That leads to areas of high and low pressure forming, and in ...

A Dec. 4 Instagram post (direct link, archive link) shows an image of Earth from space. Earth's atmosphere is labeled "pressurized gas," while outer space is labeled "infinite vacuum." A third label ...

The petroleum industry must predict pore-pressure profiles accurately, often walking a fine line between pore pressure and fracture gradient as it drills and completes oil and gas wells. The industry ...