As weird as it may seem, however this apparatus is extremely helpful for patients in hospitals and physically challenged individuals. The patent was awarded to in 1972 and it expired in 1989.
Based on folklore, a ghost represents the soul or spirit of the dead that can appear in the physical world. It is sometimes called a spook, apparition, poltergeist, or spectre. The description of ghosts varies in shape, visibility, and lifelike visions. While most people fear ghosts and paranormal activities, it is a well established fact that humor and horror genres seamlessly mix together ! Invented by Frank Becking, the “Haunting aid” (US Patent Application No. US20050018451A1) is a face with glowing eyes that returns stares or blinks at onlookers. While it is made for entertainment purposes, the invention may even be useful in producing mass-hysteria. It may also find use for other festive occasions, with different effects.