Cold Fusion, Again?
Updated 5.24.2103; Permalink
This paper by Levi and Foschi, Indication of anomalous heat energy production in a reactor device containing hydrogen loaded nickel powder, claims to have tested and verified Andrea Rossi's cold fusion reactor.
Our view: Skepticism is warranted.
The paper does show that excess heat is created. However, what it does NOT show, is that any sort of fusion reaction took place because the researchers were not permitted to test the reactor contents before or after the test. This is unacceptable if the purpose was to prove that cold fusion exists. Adding a proton to nickel (and the reaction is supposed to be based on hydrogen and nickel) would produce copper.
To prove that cold fusion has occurred, it must be shown that copper is produced.
The Science blog critique notes that gamma rays were not measured, but that is not true. They did measure gamma rays in one of the experiments, but didn't find any. There isn't supposed to be any high energy radiation produced in cold fusion though, so that isn't automatically disqualifying.
But if fusion occurs there must copper produced. That was not proven. Lots of heat was produced, so the paper is interesting in that regard, but as conclusive proof of cold fusion?