Just for your information. In the Egyptian pyramids have a lot of drawings deposited on the wall, I think it's no secret to everyone. But for me was interesting is the fact that on the images themselves or the ceiling of the corridor there is no stain of burning torches. So how did the ancient artists created their images in total darkness? If you are also interested to know the answer to this question, ask to view the transfer: Light for the Pharaoh.
Watch Erich von Daniken — Light for the Pharaoh