A common feature in most of the electronic devices we use – cell phones, PDAs, notebooks, handheld media players, game systems, etc. – is the provision for connecting external accessories. Such ...

Researchers have created a microphone that listens with light instead of sound. Unlike traditional microphones, this visual microphone captures tiny vibrations on the surfaces of objects caused by ...

Forward-looking: Researchers at the Beijing Institute of Technology have developed a microphone that doesn't detect air vibrations like traditional models. Instead, it captures light reflected from ...