It demonstrates how light travels in straight lines, how mirrors can reflect images, and how different surfaces affect light behavior. The film also explains how lenses work to focus images ...

A groundbreaking achievement by physicists from Imperial College London has brought new insights into quantum physics by ...

All light travels in straight lines. But when light travels through different materials, such as water and air, the light slightly changes direction. We call this refraction. Above the water ...

A ray diagram shows how light travels, including what happens when it reaches a surface. In a ray diagram, you draw each ray as: a straight line; with an arrowhead pointing in the direction that ...