He Places A Ruler In Front Of This Glass Lens. Then, He Makes It Disappear
From rainbows to prisms, light is amazing when it comes to refraction and reflection. When light reflects or refracts, it breaks down white light into the colors we come to see in the visible light spectrum. There's a law called Snell's Law of Refraction. This law states that when light is going through a particular medium, like glass, the medium will make the light bend, and in bending change speed. The colors we see in the visible spectrum have different speeds. The speed change causes them to also bend at different angles. This video demonstrates the amazing way light can bend to even create an invisible effect. It's like magic but there's science in the magic.