*As far as I know, the physics/chemistry of the Papp device has not been clarified or duplicated.*
For your information, the explosive expansion of hydrogen, helium, and mixed noble gases have been demonstrated by Both Bob Rohner and Russ Gries among others in a cylinder/piston format. Russ has produced a theory paper. As of today, nobody has proved overunity power production (besides Papp) from this explosive plasma expansion including Mills. The energy gain in this water/hydrogen/spark combo must be low because of the amount of engineering care that must be applied to get the COP of such a system over one. *Mills, in his work over the years has collected hydrinos in liquid-nitrogen trap and solid fuels; verified by independent laboratories*. This information is exciting. If you would be so kind, explain to me how these hydrinos are judged to be solely atoms and not atomic clusters, include how Mills can tell the difference between atoms and small atomic clusters in the material that he has isolated.
