Our church has a multimedia system that usually works well. But sometimes the remote control for the ceiling-mounted projector won鈥檛 work unless the operator stands directly below the projector. This always happens when the sun shines through a window and across the front of the projector. Do the sun鈥檚 rays block the infrared signal in some way, and if so, how does this happen?
Wesley Finegan, Stenhousemuir, Stirlingshire, UK
