A new experiment confirms that angular momentum conservation holds even when a single photon is split into two.

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 ...

China’s massive Three Gorges Dam has reportedly caused a subtle but measurable shift in the Earth’s axis and a slight ...

The Three Gorges Dam in China is large enough and transports enough water that it affects Earth's rotation by 0.06 ...

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 ...

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 ...

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

To determine the short-term effects of simulated microgravity on mesenchymal stem cell behaviors—as a function of clinorotation speed—using time-lapse microscopy. We compared cell responses at ...

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