Why does a ring keep its shape was the question; the Buck Rogers guns of their childhood, the inspiration. What can we make that wouldn't be violent that would still be a gun, and maybe even teach? They brainstormed one night after work in their small shop where they manufacture tools for the restoration of old buildings.
Last May they traveled to China to see that the factory workers were being treated fairly. They were impressed with the gentleness of the people. Gentle is what the rings look like as they float up to 14 feet across a room. The material used is the same non-toxic vapor that is used in theatrical productions.
They have been written up in