The device makes use of infrared light rays to image radiation that is coming from a person’s body. If the person is carrying a metal object such as a gun, it will prevent the rays from reaching the part of the body where the object is. This will result in the appearance of an outline of that object on the scanner.
The Slingshot Cannon weighs about 200 pounds and is powerful enough to destroy a small car. With a giant rubber band. Last year, the inventor made a little toy-sized model that was fully functional with its 8mm steel balls, but that was just a destructive little toy. This year’s model is ten times bigger.