This expansion is most noticeable on the largest cosmic scales. Angular momentum is crucial to cosmic rotation. When two objects in space come close together, their mutual gravity pulls them ...

China's Three Gorges Dam is the only known man-made object to have an impact on Earth's rotation, which has led to concern ...

The UPR-270 Air features best value for wobble and flatness and one can reach high accuracy because of high-precision air bearing. All rotation stages UPR-270 AIR are directly driven by a torque motor ...