The Figure at the Fire... Wow!! Have you taken a look at this image? Check out the full sized version via the gallery link at the bottom of this article. This brief article is about this and how we can be fooled by a fluke of photography. Like so many of the more convincing ghost photos it was captured on a shot that was not...
Motion Sensors
Motion Sensors... These usually come as two slightly different types. The first type consists of two parts, one an emitter and one a receiver. An infra red light beam is emitted between the two parts and if this is broken an alarm will sound. This barrier-beam type is useful for locking off areas or perhaps even placing...