Refraction close refractionProcess by which a wave changes speed and sometimes direction upon entering a denser or less dense medium, eg a light ray changes direction when refracted by a lens. from a ...

Save guides, add subjects and pick up where you left off with your BBC account. Light is refracted when it enters a material like water or glass. Depending on the density of the material, light will ...

When people look into a mirror, they see an image of themselves behind the glass. That image results from light rays encountering the shiny surface and bouncing back, or reflecting, providing a ...

Scientists have demonstrated that negative refraction can be achieved using atomic arrays -- without the need for artificially manufactured metamaterials. Scientists have long sought to control light ...

The joy I receive from my new home came in a most unexpected way. Our builder uses glass transoms over doorways as one of his signature features. I did not like the look of them and told him so. He ...