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 +
Giulio, we have to use understandable words: what does "the map of Tropic of Capricorn" mean? In which sense you use the word "map"? How we may "map" a line? When a line like the Tropic of Capricorn runs for a great amount of its length on the sea, what does to map it mean? In your conceptual language, is there any difference between " to measure" and "to map"? Why August had to measure/map the Tropic of Capricorn, just for the sake of doing it? I read some of your articles and books but the recurring question is WHY? Is not sufficient at all that somebody (Julius Honorius) wrote that the world was "surveyed" (?) by four men that it automatically means that it is the truth. I fear we have to find, first of all, a common language and to assign to the words a shared and accepted meaning. You sent us a modern map in cylindrical projection where the tropic of Capricorn is in evidence in red, and with 5 toponyms on it with an allusion to August. I hardly understand the relation between your words (i. e. "the map of Tropic of Capricorn made by August, later 27 BC") and the map itself? vladimiro Il giorno 07/mag/2011, alle ore 10.59, giulio pizzati ha scritto: > 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 + > > Waldo > > I send attached ( png ) the map of Tropic of Capricorn made by August, later > 27 BC. > Raphta is a Roman naval station to import ivory. See PERUPLUS MARI ERYTHREI > (Cap. 16/18) see also (wikipedia-org/wiki/Indo_roman_trade_and_relation) > > Giulio > > --- Mer 4/5/11, Waldo Tobler <[email protected]> ha scritto: > > Da: Waldo Tobler <[email protected]> > Oggetto: Re: [MapHist] Tropic of Cancer and of Capricocrn > A: [email protected], "Discussion group for map history" <[email protected]> > Data: Mercoledì 4 maggio 2011, 04:22 > > 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 + > > They are not great circles! > > Waldo Tobler > Geographer > [email protected] > http://www.geog.ucsb.edu/~tobler > > > > On May 3, 2011, at 2:32 PM, Christos Nüssli wrote: > >> 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 + >> >> Le 24.04.2011 18:03, [email protected] a écrit : >>> 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 + >>> >>> >>> >>> >>> In my class I was asked when the tropics of Cancer and Capricorn were >>> identified as two of the five great circles around the earth. Wikipedia has >>> failed me on the question. Surely these go back before the >>> Greeks who named them. I would like to impress my students with an answer >>> and would appreciate whatever you can give me. >>> The next one will probably be the equinoctial line. (Sigh!) >>> Tom Goodrich >>> >> Sorry for this late post but I was in Italy during the Easter vacation. >> >> The notion of "tropic" is something easy to apprehend without deep knowledge >> in astronomy. The zone of the earth situated between the 2 tropics is the >> the only area where the sun passes, at least, twice a year at the exact >> zenith (=exactly perpendicular to the ground - in fact, to a plane tangent >> to our sphere). In Europe, we cannot observe the real zenith. >> Eratosthenes experimented the exact zenith from the bottom of a dry well at >> Aswan (=Syene) and by a comparison with the zenith angle at Alexandria, he >> was able to calculate the earth circumference. >> My opinion is that Eratosthenes well should have been rather at Amada, today >> under the lake Nasser, 180 km south of Aswan, but, anyway, that doesn't make >> a big difference for an eye measure. >> >> Atb >> _____________________________ >> Christos Nüssli >> >> ***************************** >> Europe Maps - >> http://www.euratlas.org >> _______________________________________________ >> 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 >> [email protected] >> http://mailman.geo.uu.nl/mailman/listinfo/maphist > > > -----Segue allegato----- > > _______________________________________________ > 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 > [email protected] > http://mailman.geo.uu.nl/mailman/listinfo/maphist > <august.png>_______________________________________________ > 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 > [email protected] > http://mailman.geo.uu.nl/mailman/listinfo/maphist _______________________________________________ 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 [email protected] http://mailman.geo.uu.nl/mailman/listinfo/maphist
