In reply to Russ's message of Tue, 22 May 2018 08:35:29 +0100: Hi, [snip] >Redefining the language in mid-stream always makes exchanging ideas >difficult. The long standing convention is that all neutrons have the same >mass, the binding energy in collections of nucleons in different nuclides >varies.
If the constituent particles of a nucleus retained the mass they had as separate particles, then nuclei would be more massive. > >Everything gains mass as it approaches the speed of light. > >-----Original Message----- >From: [email protected] <[email protected]> >Sent: Monday, May 21, 2018 10:42 PM >To: [email protected] >Subject: Re: [Vo]:The PP fusion reaction in LENR > >In reply to Jed Rothwell's message of Mon, 21 May 2018 11:00:54 -0400: >Hi, >[snip] >>Russ <[email protected]> wrote: >> >>Might you point to a reference where the mass of neutrons in deuterium vs. >>> other nuclides is said to be different. >>> >> >>I do not understand. Is the claim here that a neutron in deuterium is >>heavier or lighter than a neutron in some other element? > >Yes (heavier), that's what I'm suggesting. > >> There are >>different kinds or neutrons, or entering deuterium changes the mass? > >The latter. The energy release from the nuclear reaction has to came from >somewhere. I am simply saying that it comes from the conversion of part of >the mass of the constituent particles. > >> >>That seems extremely unlikely to me. > >Then you need to explain where the fusion energy comes from. (I'm counting >addition of a neutron to a nucleus as a form of fusion). > >Note that the formation of D from a free proton & a free neutron releases >only >2.2 MeV of energy whereas at the other extreme, addition of a neutron to a >Ni nucleus releases about 8 MeV of energy. Hence my conclusion that neutrons >in Ni have lower mass than those in D. > >Regards, > > >Robin van Spaandonk > >local asymmetry = temporary success > Regards, Robin van Spaandonk local asymmetry = temporary success
