C'est pas sorcier -CARTOGRAPHIE

The official channel of the France 3 program. It's Not Rocket Science, the science and discovery magazine. Why were the Sun's movements used to draw the first maps of the world? How did Eratosthenes manage to calculate the size of the Earth? How do you represent a sphere on a plane? How do surveyors transfer field measurements onto a map? To talk about cartography, Fred visited the National Library, where all the maps published since the beginning of the 19th century are kept. He also followed the surveyors of the IGN (National Geographic Institute) who, on foot or by plane, create maps of our country in minute detail.