Atomic, molecular, and optical physics the origin of the index of refraction treated an electron in an atomic system classically according to the model of Paul Drude and Hendrik Lorentz. The theory was developed to attempt to provide an origin for the wavelength-dependent refractive index "n" of a material. In this model, incident electromagnetic waves forced an electron bound to an atom to oscillate. The amplitude of the oscillation would then have a relationship to the frequency of the incident electromagnetic wave and the resonant frequencies of the oscillator. The superposition of these emitted waves from many oscillators would then lead to a wave which
There Is Always Something There to Remind Me There Is Always Something There to Remind Me "There Is Always Something There To Remind Me" is the final single released by British Indie rock band The Housemartins. An unfavourable account of Paul Heaton's schooldays akin to The Smiths' "The Headmaster Ritual", the non-album single was released in April 1988 as a 7" and a 12" and reached #35 in the singles chart. A video was made for the single featuring the band members dressed as school teachers. It was filmed at the Bishop Douglass School in Finchley, Greater London. The single cover artwork was designed by Paul Warhurst, the