What if you could listen to music or a podcast without headphones or earbuds and without disturbing anyone around you? Or ...

Scientists have been unable to confirm the existence of time reflection due to the amount of energy required to create a ...

Light is a type of electromagnetic radiation that can be detected by the eye. It travels as a transverse wave. Unlike a sound waves, light waves do not need a medium to pass through, they can ...

In the future, this method could also be used in technical applications with electromagnetic waves. Water, light and sound waves usually propagate in the same way forward as in a backward direction.

For centuries, the reflections of light or sound have been theorized. Scientists have always thought of another variable: ...

This special interference—or coherence—between photons results in a highly focused and uniform beam of light. Sound waves can be similarly coherent, and scientists have even created sound ...

Let's go back to those sound waves from before. See, sound waves, like light waves, have peaks and valleys. Noise-cancelling headphones have their own built-in microphone. And when the headphone's ...

Kyoto Prize winners came to San Diego for this year’s symposium. Kyoto Laureate John Pendry talked about the theory of ...

Until now, this so-called cloaking had only been studied for waves such as light or sound. They report their results in Nature Communications. Making objects invisible is no longer a purely ...