Researchers at ETH Zurich have managed to make sound waves travel only in one direction. In the future, this method could also be used in technical applications with electromagnetic waves.

sound waves cause air particles to vibrate back ... All of the waves in the electromagnetic spectrum are transverse waves, as are water waves. A hand qucikly moved up to continue the sine wave ...

Electromagnetic radiation in the form of light or sound waves hit a mirror or wall, respectively, and change course. This allows our eyes to see a reflection or echo of the original input.

Electromagnetic waves are members of a family of waves with ... Analogue data must be converted to digital before a computer can use it. Sound can be transmitted as an analogue signal when you ...

A team of researchers have developed "audible enclave" technology that creates pockets of sound that can be heard at a ...