Thames & Kosmos Optical Illusions Stem Experiment Kit | 35 Amazing Optical Experiments | Explore Physics Of Light, Optics, Perception | Includes 3D Glasses | Build A Camera Obscura | For Ages 8+Astonish yourself with optical illusions and amazing visual phenomena as you explore human perception and the physics of light. Experiment with light and the color spectrum by building a color wheel, a fiber optic peacock, and diffraction glasses. Learn how the eye and a camera are similar and how they are different. Build a camera obscura and pinhole glasses. Investigate lenses and light refraction. Experiment with spatial vision and depth perception