- Piantelli and Focardi share the same basic knowledge of the hydrogen-nickel technology, but at the time Focardi left Piantelli to follow after Rossi, his knowledge was not as extensive or as up-to-date as Piantelli’s.
- The Piantelli hypothesis is highly reminiscent of the known nuclear processes of electron capture and muon-catalyzed fusion.
- The H− ion consists of a proton with two electrons. [ comment: very curious phenomenon]
- According to Piantelli’s hypothesis, under the right conditions a H− ion can replace an electron of a transition metal atom, just as a muon replaces an electron in muon-catalyzed fusion. Due to its relatively large mass, the H− ion continually falls to lower electron levels, causing the emission of X-rays and Auger electrons. As it has a net negative charge, there is no Coulomb repulsion to hinder its progress toward the transition metal nucleus. At the lowest level the H− ion is close enough to be captured by the nucleus. After capturing the H− ion, the unstable nucleus releases energy and eventually expels the anion in the form of a proton. [ emphasis added, comment: Seems plausible, but I have not heard of a hydrogen atom with two electrons, this seems odd. Here is hydride (H- ion) entry in Wikipedia]