In physics, a mechanical kink marks the point of transition between different internal states of a material. Researchers have now succeeded in creating a model in which they were able to move the kink ...

Ultrasonic espresso’ made with cold water and high-frequency sound waves uses less energy than the traditional version – and taste tests show it’s just as good.

The takeaway: New research is challenging a basic assumption about espresso: that it has to be made with hot water. Instead of relying on near-boiling water, researchers have shown that high-frequency ...

An international team of scientists has developed a new analysis of how sound waves behave, revealing surprising effects that have largely been overlooked for decades. In the new paper in Scientific ...