What we have here is a gun, not just any¬†gun. A gun with a difference, it has been changed to become a weapon of science for Heriot-Watt University. In reality none of the components¬†inside fit within the guns structure, as far as I believe all this sits on a table but doesn’t look as good. So I was asked to draw various components and put them in the order of a supplied schematic. What does it do? Well let me tell you, it fires one photon.