On Tue, Mar 14, 2017 at 10:41 PM, Eric Walker <eric.wal...@gmail.com> wrote:
> On Tue, Mar 14, 2017 at 6:06 PM, H LV <hveeder...@gmail.com> wrote: > > Does it necessarily require a violation of CoE? >> It could be we don't know enough about nuclear matter to know how to >> build or take apart nuclei with much less energy. >> > > It's not necessarily a matter of COE; e.g., perhaps most of the energy was > quietly dissipated via neutrinos, following Robin's suggestion. But if > there is a nuclear transformation from not-iron to iron, and neutrinos were > not a big factor, then the physics is straightforward: > > E = mc^2 = [ (mass of not-iron) - (mass of excess iron) ] c^2 = [delta > mass] c^2 > > If for some reason this situation does not hold, then it seems to me that > the CoE discussion comes up again. > > Eric > > ​What is the "bond" energy of a nut and bolt? Does the amount of energy that is required to literally slam together a bolt and a nut correspond to the energy required to screw them together? Equations are poor guides if the situation is modeled in inaccurately. Harry
