Engineers just created a phonon laser that could shrink your next smartphone

Engineers have created a device that generates incredibly tiny, earthquake-like vibrations on a microchip-and it could transform future electronics. Using a new kind of phonon laser, the team can produce ultra-fast surface waves that already play a hidden role in smartphones, GPS systems, and wireless tech. Unlike todays bulky setups, this single-chip device could deliver far higher performance using less power, opening the door to smaller, faster, and more efficient phones and wireless devices....