"Absolutely Vertical" <email@example.com> wrote in message news:firstname.lastname@example.org... > On 4/2/2013 7:27 AM, Tom Potter wrote: > >> Apparently no one understands my questions. >> >> "How would one measure a right angle >> without using geometry, >> or the 3-4-5 relationship, >> >> and how precisely can a right angle be measured?" >> >> Let me put it like this, >> >> what **primary standard** do physicists, the military, >> astronomers , industry, etc. >> use as their ORTHOGONAL standard, >> and how accurate are these standards MECHANICALLY? >> >> I dare say they trust Euclid and Pathagoras. >> >> I suggest that one should "trust BUT verify." >> >> I know how to create an ORTHOGONAL standard >> that is accurate to 1x10^10 or better, >> >> Do you? >> > > why do you think such a standard is required?
If you want to determine the orthogonally of anything, a house, a pyramid, a football field, the universe, I suggest that you need an ORTHOGONAL standard.