Lucio Russo (University of Rome Tor Vergata, Italy) - Jeudi 7 novembre.
Claudius Ptolemy, in the second century C.E.,
ascribes to the earth a size that was significantly
smaller than that determined by Eratosthenes four
centuries earlier. A search for the origin of this drastic,
strange shrinking of the world has led to unexpected
discoveries. A statistical analysis of the longitudes
reported in Ptolemy’s Geography proves that at the
root of Ptolemy’s error lies a misunderstanding of geographical
coordinates, going back to Hipparchus, for
places in the Americas whose existence was not even
suspected in imperial times.
You can also watch this video on the multimedia site ENS :savoirs.ens.fr