You can trap a laser in a stream of water if it goes in at the right angle. Watch to see this in action! This same principle of total internal reflection is how optical fiber communication works Our high-speed internet is really laser signals bouncing around optical fibers all across the world 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 La