in order to avoid unwanted reflections of light or microwaves. Ten years ago, researchers succeeded in suppressing sound wave propagation in the backward direction; however, this also attenuated ...

For example, turbulence at the ocean surface can be caused by wind or wind-drift currents, while turbulence of laser radiation in optics occurs as light ... the propagation of sound waves in ...

"The light sets the electrons in the tip in motion ... The new technique allows for the direct observation of electron wave propagation in both space and time. This was achieved with a resolution ...

Particles subjected to a P wave move in the same direction that the wave is moves in; it is the direction that the energy is traveling in, sometimes called the “direction of wave propagation.” ...