This tutorial wont be the most practical recording setup you have ever used, but it is an interesting bit of science and a great DIY project. It is a simple laser listening device that will allow you ...

A team of academics has detailed this week novel research that converted a smart vacuum cleaner into a microphone capable of recording nearby conversations. Named LidarPhone, the technique works by ...

Laser microphones have been around since the Cold War. Back in those days, they were a favorite tool of the KGB – allowing spies to listen in on what was being said in a room from a safe distance.

Imagine sitting in the privacy of your own home, discussing sensitive matters with a trusted friend. Unbeknownst to you, a tiny device hidden in the room or even the microphone of your smartphone is ...