Yes, If this is a theoretical discussion then at the end of all the chains of reasoning it all comes to "mutually observed event". If this is just engineering then it comes down to "the delay is so fast no one cares".
My background is computer science. Computer science is a mash-up of mathematical theory and practical engineering. In some classes we did proofs and others we built stuff. It is kind of fun to look both ways. A real disaster happened at TRW some years back where us poor working minions were required to do proofs on the stuff we were building. Looking both ways at the same time did not work. On Wed, Aug 19, 2020 at 6:10 PM John Dammeyer <jo...@autoartisans.com> wrote: > > > > From: John Dammeyer [mailto:jo...@autoartisans.com] > > I was just reading a few weeks ago in the book "Sapiens" that the early > explorers set up an experiment where they would observe an > > astronomical event from both England and the South Pacific. Something > about either time or position. > > > > I think it was Cook who was exploring at that point. I'll have to dig > through to see exactly what it was. > > > > Still quite something to plan on observing something that will take you > a year or more before you are even there to do the observing. > > > > Chapter 15, The marriage of science and empire. James Cook was > commissioned to take astronomers and others to the pacific to be there in > 1769 to measure the duration of the transit that Venus makes across the > sun. Apparently measured from different places on earth results in simple > trigonometry to determine the distance of the earth from the sun. > > Who knew. > > John > > > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
