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Interjection: There is a grammatical inconsistency between ""originally used"" and ""refers"".  Since the past tense is correct, ""referred"" is a better word there.  I'd also like to point out that the part about Prof Jones is a bit unclear.  What experiment did he do that was different from the P/F work?  Did it involve deuterium-saturated metal?  If so, then technically there is little significant difference, today ""cold fusion"" is basically the description of a proposed explanation for the apparent appearance of heat in experiments that involve deuterium-saturated metal.  Believers, of course, think that the heat is real and the proposal is the correct explanation.   
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