For 10 points, name this Dutch physicist whose namesake transformations are central to special relativity.
A model named for him and Drude calculates dispersion by showing how light interacts with charged harmonic oscillators.  A force proportional to charge squared times jerk is named for him and Dirac and Abraham, and is also known as the radiation reaction force.  Along with Cauchy, he names a lineshape that describes pressure broadening in spectral lines and which is also known as a Breit-Wigner distribution.  He is also the partial namesake of an equation for the index of refraction of a dilute gas, equivalent to one named for Clausius and Mossotti. He also names a phenomenon sometimes also named for Fitzgerald, his namesake contraction. For 10 points, name this Dutch physicist whose namesake transformations are central to special relativity.
A model named for him and Drude calculates dispersion by showing how light interacts with charged harmonic oscillators.  
Hendrik Antoon {Lorentz}