A broken CD or DVD or other type of optical disc is a serious problem and one that will likely lead to loss of information stored on this media. A broken optical disc refers to a disc that has split into two or more pieces or perhaps a disc simply missing one piece.
A motion detector is a device that detects moving objects, particularly people. A motion detector is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.
How Radar Detectors Work Radar detectors are small devices that help identify the presence of radars, such as those used by police to locate cars driving over the speed-limit. Certain types of radar detectors also identify the presence of laser-speed guns, which may be useful for those looking to avoid speed traps that traditional radar detectors may miss. In order to understand how exactly a radar detector works, itâs helpful to understand the manner in which basic radars operate.