Light was long considered to be a wave, exhibiting the phenomenon of interference in which ripples like those in water waves ...

THE theory that light is a series of spherical waves progressing from the source with velocity c, and the theory that light is a group of corpuscles moving in straight lines from the source with ...

Owing to the wave nature of light there are many ways that such different waves can interact with each other, but also with materials. Everyone knows about reflecting light with a mirror ...

Wave-particle duality and entanglement are cornerstone concepts in quantum physics, yet their exact relationship has long ...

In this respect it seems surprising that little attention should have been directed to the dependence on the wave-length of the incident light. Probably the pupil was generally supposed to react ...