Artificial rainbow machine
The Flash 9.0.0 plugin or higher is required to view content on this page, but was not detected on your browser.
The idea with that artificial rainbow is fantastic. A rainbow machine has been already created. It uses reclaimed rainwater and sunlight to create rainbow effect. The machine applies jet pumps and custom fountain nozzles to spray water in the air, and then the sunlight shines through to create the rainbow effect.