Create a focused speaker so your music targets only the listener. That demodulates at 40 kilohertz, with an H-bridge and ...

Engineers have learned how to create tiny earthquakes on a microchip—and it could change how smartphones are built. Engineers ...

Japan has quietly crossed a threshold in naval warfare, moving a 100 kilowatt class laser from the lab into real ocean conditions. Instead of a science fiction showpiece, the weapon is packed into a ...