For the uninitiated, harmonic drives, also known as strain-wave gears, are a compact, high-torque gearbox that has become popular with “robotic dog” makers and other roboticists. The idea is ...

I remember coming to the understanding that a square wave, which is a collection of fundamental and (odd) harmonics frequencies, could then be used to give an indication of frequency response.

An artistic impression of the high-frequency retrograde (HFR) vorticity waves. These waves appear as swirling motions near the equator of the Sun. The rotation in the north is always anti ...

THz waves, located in the far-infrared region of the electromagnetic ... More information: Ali Maleki et al, Strategies to enhance THz harmonic generation combining multilayered, gated, and ...

Far-field stroboscopic scattering microscopy tracks the propagation of both fundamental and second-harmonic waves within van der Waals waveguides, allowing parameter-free determination of phase ...