Time for another Fermi problem. There was a recent story in Science News that talked about the effects of the Chilean quakes on the Earth's rotation. The basic idea is that some ginmourmous amounts of ...

Can a movement many feet below our feet quietly change the Earth’s rotation? Over 3,000 miles below the ground, the Earth’s ...

This story profiles one of the Offshore Technology Conference's Spotlight on New Technology Award winners. If an exploration and production company is going to use a downhole sensor to relay critical ...

Recently, femtosecond laser techniques have been developed that are capable of bringing gas molecules to extremely fast rotation in a very short time, while keeping their translational motion ...

3D angle: angle between the mechanical axes before and after derotation.