Task: Text Categorization
Input (English): This effect's inverse form can be described using the Kompaneets equation, and Faust and Johnson described its multiple form. In describing this effect, its namesake created a namesake wavelength of a particle defined as Planck's constant divided by the product of the particle's mass and the speed of light. That inverse form, which results from the scattering of CMB photons, is known as the Sunyaev-Zel'dovich effect. The differential cross-section of this effect is calculated for higher wavelengths of the Klein-Nishina formula, and is the higher-wavelength version of visible light's Thomson scattering. For 10 points, name this form of scattering in which a photon loses energy when it collides with matter.
Output (English): Science