A ripple tank is a transparent shallow tray of water with a light shining down through it ... The angle of incidence is the angle between the incident wave direction and the normal.

Unlike a sound waves, light waves do not need a medium ... The diagram shows refraction of light passing into, and then out of, a glass block. The same would happen for a Perspex block or for ...

How metamaterials bend the paths of electromagnetic radiation (i.e. refraction) drives their peculiar applications. For example, a metamaterial invisibility cloak would bend the paths of light waves ...

which direct light by refraction in glass or plastic, are often bulky and heavy, offering only limited control of light waves. Metasurfaces, in contrast, are flat and consist of an array of tiny ...

When the war in Europe was over, another war, led by Jim Crow had no end in sight. The play, Refraction of Light is Jean Klein's interpretation of 1940s life in Berkley for Jews and Coloreds as ...