question: What name did Paul Ehrenfest give to the proofs from Einstein and Rayleigh & Jeans ?
answer: the `` ultraviolet catastrophe ''
turker_answer: Paul Ehrenfest gave the `` ultraviolet catastrophe '' to the proofs from Einstein and Rayleigh & Jeans .
rule-based: Paul Ehrenfest gave the `` ultraviolet catastrophe to the proofs from Einstein and Rayleigh & Jeans .