The mind-bending concept of time dilation results from a seemingly harmless assumption—that the speed of light is the same for all observers.

Inject these high-intensity intervals into your workouts to build race-day speed and resilience, along with a killer finishing kick.

The principle of friction force drive of ultrasonic motor (USM) results in complex nonlinear behavior. The friction force at the contact interface is easily affected by factors such as surface ...

The blade tip speed limit of a propeller plane's propeller can determine the plane's top speed for reasons relating to design ...

A torque limit-based (TLB) method was proposed in literature in order to emulate inertial response of variable speed wind turbines (VSWTs). In this paper, this conventional TLB scheme is firstly ...