The formation of star clusters and galaxies is due to fluctuations in the density of cosmic matter, and hence gravity’s pull. The fact that all these objects are spinning is due to the conservation of ...

The first part of your question — how stellar objects reach millisecond spin periods — involves two concepts. First, the object needs to be small, since no material can move faster than the speed of ...

Interactions between a spinning object and soundwaves could help develop high-precision tools, such as tweezers that control the motion and position of submillimeter objects by manipulating acoustic ...

Tiny magnetic microrobots spinning in liquid can generate fluidic torque strong enough to move gears and objects without any physical contact.