After giving a short verbal discourse regarding astrophysics and the phenomenon of black holes, you unveil an incredible looking device that looks like it came from halls of some futuristic scientific laboratory. Resting upon a castored platform via thin uprights are two large cones mounted on their sides so that the apex of their tips almost touch, very similar to an hour glass laying on its side. You borrow an object such as a purse or coat from a spectator and place it inside one of the cones through its open end. The huge cones begin to glow with pulsating oscillation. Slowly they begin to revolve similar to the huge vaults on cement mixing trucks.
Light radiation is seen to blast from the tip of one cone to the other.
You place a piece of flashpaper in the line of fire between the cones and the paper is suddenly incinerated by the plasma seemingly being injected between the cones. The experiment continues however with the introduction of your lovely assistant. She now enters one of the cones. It is a tight fit and it is obvious that she has very little room to maneuver inside. You put the cap back in place, the Vortex is activated, and its characteristic glow and revolve is again displayed.