> On 17 May 2019, at 09:04, Philip Thrift <[email protected]> wrote: > > > On Thursday, May 16, 2019 at 6:13:37 PM UTC-5, Lawrence Crowell wrote: > On Thursday, May 16, 2019 at 11:57:44 AM UTC-5, Bruno Marchal wrote: > >> On 15 May 2019, at 03:07, Lawrence Crowell <[email protected] <>> >> wrote: >> >> On Tuesday, May 14, 2019 at 9:24:05 AM UTC-5, Bruno Marchal wrote: >> >> > On 12 May 2019, at 09:08, Evgenii Rudnyi <[email protected] <>> wrote: >> > >> > ‘I believe there are >> > 15,747,724,136,275,002,577,605,653,961,181,555,468,044,717,914,527,116,709,366,231,425,076,185,631,031,296 >> > protons in the universe, and the same number of electrons.’ >> > >> > Eddington, Arthur S. 1939. The Philosophy of Physical Science. Cambridge: >> > Cambridge University Press. p. 170. The beginning of the Chapter XI, The >> > Physical Universe. >> >> Lol. >> >> >> The number is curiously not that different from the currently understood >> number. >> >> To be honest I think there is only one electron in the universe. All these >> electrons we see are just the same electron weaving through space and time. > > > That is quite reasonable, but I am not sure an electron is a physical object, > it is a locally observable invariant in some group theoretical > transformation. The “electron” is a useful fiction, to send waves, or to make > the atoms dialoguing into molecules and bigger strangely stable and > persistent histories decorum. > > I al still curious why that number. I don’t have that book by Eddington. > > Bruno > > > > An electron is the occurrence of some quantum numbers in a small local region > with the occurrence of a measurement. Prior to a measurement in one sense > there is no such thing as the electron as a particle. There are experiments > where the spin of an electron can manifest itself in one place and the charge > somewhere else. Certain interferometers can separate the electron's quantum > numbers. > > LC > > > >> >> LC >> >> I guess this concerns the observable universe, which has grown a lot since >> 1939. (Cf Hubble and “Hubble) >> >> Any idea of why that particular number? Beyond the apparent joke? >> >> Bruno >> >> >> >> >> > >> > > > > > Prior to a measurement in one sense there is no such thing as the electron as > a particle. > > That is just a quasi-theological view in the catechism some physicists. > > @philipthrift
Thank you all for the precisions. Bruno > > >> >> - > > > -- > You received this message because you are subscribed to the Google Groups > "Everything List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > <mailto:[email protected]>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/everything-list/0fd3d0ae-dfb9-429e-a4e7-fea266ab25fe%40googlegroups.com > > <https://groups.google.com/d/msgid/everything-list/0fd3d0ae-dfb9-429e-a4e7-fea266ab25fe%40googlegroups.com?utm_medium=email&utm_source=footer>. -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/44688959-0509-4919-83BF-57A717E8B300%40ulb.ac.be.
