 The discoverers of cold fusion, Fleischmann and Pons, calculated that a palladium cathode immersed in a heavy water electrolysis cell could achieve up to 1027 atmospheres of pressure on the surface of the cathode, enough pressure to cause spontaneous nuclear fusion.In reality, only 10,000–20,000 atmospheres were achieved.John R. Huizenga claimed their original calculation was affected by a misinterpretation of Nernst equation.