When humans look at the world, their eyes catch these waves and convert them into signals ... systems, and it has implications for quantum information systems, where precise control of sound ...

Underwater waves could also be used to reduce the risks of tsunamis and to improve their early warning systems.

The difference is in how the carrier wave is modulated, or altered. With AM radio, the amplitude, or overall strength, of the signal is varied to incorporate the sound information. With FM ...

Researchers report their insights on the emerging field of complex frequencies excitations, a recently introduced scheme to control light, sound and other wave phenomena beyond conventional limits.