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 ...

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

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.

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

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 ...

Here we use photonics, or light energy, to produce the sound wave. This approach has multiple advantages, chief of which is ...

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 ...

5. Encourage students to think about other kinds of energy that travel in the form of waves (e.g. sound, light). Explain to students when a train whistle screams, the sound they hear has moved ...

Using an air vortex cannon to focus the sound waves from the bass reflex port, it ‘wiggles’ the flame out in a matter of seconds, as illustrated with a thermal camera. Compared to the much ...