Polycontrast Interference Photography, also known as PIP, is an energy field video imaging system. This system was developed by Harry Oldfield, a respected biologist and an inventor from the UK. PIP provides a real time, moving image of the energy field of any object, including the human body.
Harry Oldfield visited Visoko, Bosnia & Herzegovina in 2008 and recorded images of the Bosnian Pyramid of the Sun. He compared his recordings to images of natural hill formations of a similar size and shape.