For 10 points, identify this British physicist who gives his name to the unit of absolute temperature.
A model of viscoelasticity in based on units composed of springs in parallel with frictional viscous dampers is named after Voigt and this scientist. A theorem named after this scientist states that for any flow governed by Euler's equation, the time-derivative of the line integral of the velocity field around any closed contour is zero. One use of that theorem is to analyze the formation of a Karman vortex street at the interface of two flow layers with different velocities, an instability named for Helmholtz and this scientist. When the inversion coefficient is negative, the isenthalpic compression of a gas causes it to cool in an effect named for Joule and this man. For 10 points, identify this British physicist who gives his name to the unit of absolute temperature.
A model of viscoelasticity in based on units composed of springs in parallel with frictional viscous dampers is named after Voigt and this scientist.
William Thomson, First Baron Kelvin [accept either; also accept "Voigt" before mention; accept actual descriptions of the theorems/models, e.g. Kelvin-Helmholtz at any time]