the famous Schrödinger equation, which shows that when particles become extremely small there is less space for the material’s electrons. In turn, the electrons – which are both waves and particles – are squeezed together. Fröhlich realised that this would result in drastic changes to the material’sproperties.  Schrödinger equation

Ruler and Subject

Father and Son

Husband and Wife

Elder and Younger

Friend and Friend