If the light rays are travelling from one medium to another they change their direction at the boundary between two mediums. When the light rays either bend or change their direction while passing ...

Refraction is the bending of light when it goes from one medium to another so, when a ray of light passes through a glass prism, refraction of light occurs both, when it enters the prism as well as ...

Boffins at the software king of the world, Microsoft, have emerged from their smoke-filled labs with a piece of glass which they say can store data for more than 10,000 years. In Nature on 18 February ...