This is a MapHist list message (when you hit 'reply' you're replying to the whole list) o + o + o + o + o + o + o + o + o + o + o + o + o + o + o + o + o + o + o +
Joaquim: Ooops...late hours of the night... 2011/1/26 Paulo Afonso <pmjafo...@googlemail.com> > Caro Joaquim Alves Gaspar: > > Viva :-) > > Many thanks for your comments relative to your interesting thesis and > contents there related to the discussion on the measurement of a degree of > longitude, and the dispute matters between Portugal and Spain. > > Well first of all it is obvious that the longitude degree-scale translated > into leagues-length of curved surface was not the same, between Portugal and > Spain - otherwise they would match nicely in what comes to accept where the > Anti-Tordesilhas line would exactly pass by. > > This was not the case at all - Spain and Portugal claimed different > measurements and thus had a very hard dispute to solve. > > As you say in your thesis - pages 41, 42 - the relevant matter is not > exactly the measurement/definition of a league in itself, but how many > leagues exist in a longitude degree. I believe these thesis pages are the > most relevant ones for the discussion here. Your argument there assumes that > the distance between Lisbon and the Molucas islands is known - then it > follows a/your correct discussion for the Portuguese more leagues per degree > being correct, vs. the smaller Spanish leagues per degree, that would sooner > grasp too many degrees, placing such distance to the Molucas already in > Spanish Territory, and the Anti-Tordesilhas line too close (say) to Malacca > instead (too far West of the Molucas then...). This in the scenario where > you measure from East to West, from Lisbon along Europe, Asia - to the other > side of the world. In this scenario, the world would then have a bigger > perimeter for the Portuguese - Earth being smaller for the Spanish. This was > the orientation of my first email, stating so. > > I meant obviously from West to East here...from Lisbon along Europe-Asia to ...far East Molucas...as I correctly follow up below in the text... Bons ventos, Paulo Afonso
_______________________________________________ MapHist: E-mail discussion group on the history of cartography hosted by the Faculty of Geosciences, University of Utrecht. The statements and opinions expressed in this message are those of the author and do not necessarily reflect those of the University of Utrecht. The University of Utrecht does not take any responsibility for the views of the author. List Information: http://www.maphist.nl Maphist mailing list Maphist@geo.uu.nl http://mailman.geo.uu.nl/mailman/listinfo/maphist
