Firing ultrasound signals into rodent brains puts them in a torpor-like state. Scientists are wondering if it could be used on humans. When you purchase through links on our site, we may earn an ...

Sound and other waves usually propagate equally forwards and backwards. Researchers have now developed a method that prevents sound waves from travelling backwards without deteriorating their ...

Scientists at ETH Zurich and the Swiss Federal Institute of Technology Lausanne have developed a device that directs sound waves in one direction without wasting energy. This breakthrough sound wave ...

What if you could listen to music or a podcast without headphones or earbuds and without disturbing anyone around you? Or have a private conversation in public without other people hearing you? Newly ...