+**Refraction**
+Refraction is the bending of a [Wave](/wiki/wave) as it passes from one medium to another. This change in direction occurs because the wave's speed alters, often beautifully observed with [Light](/wiki/light) when it enters water or glass.
+## See also
+- [Optics](/wiki/optics)
+- [Reflection](/wiki/reflection)
... 2 more lines