Changing Colors is an interactive exhibit that shows how some high-tech nanomaterials mimic natural phenomena. Super-small, light-reflecting structures—instead of pigments—on the wings of some butterflies create intense, iridescent colors. Nanoscientists have replicated this effect with layered, super-thin films. Watch the colors change on butterfly wings and thin-film slides as you move them beneath a light source, and discover how nanoscale structures can manipulate light and create color. Butterfly specimens deteriorate with heavy use, and may need to be replaced periodically.
angle of incidence
This lesson is a three part uinit which helps students explore angle of incidence, anle of refraction, and how light is transmitted through a waveguide for communication. The students can either do a guided inquiry or an independent inquiry. Part 1) Refraction tank. Part 2) Gelatin Waveguide. Part 3) Optical Fibers