@larry_laser: Optical prisms refract (or bend) light traveling through them, but a weird affect called total internal reflection (TIR) happens if the light goes through them at a specific angle Watch to see the different ways a right angle prism can affect laser beams traveling through it Optical engineer Cory Boone breaks down weird optics facts and how light is used to do amazing things in these short, educational videos Introduce a kid in your life to science and optics with the Larry Laser kids' books, available through Amazon and the publisher SPIE's website! #Science #stem #physics #optics #engineering