Nice set of base prisms (three different sizes). Used it to demonstrate on a clear, sunny day outside (or with light coming out of a window) by placing prisms on a table with a white poster that a prism can separate white sunlight into different colors (purple, blue, green, yellow, orange, and red) to create clean, science-based artistic patterns that can be photographed (or redrawn) if you like. Interestingly, the flashlight doesn't produce many colors. In addition, by placing various prismsโฆ