FIG CINEMA
11:30-12:45: THE FOUNDATION OF GEOMATICS
Episode 1: Presentation of the historical context and of Delambre & Méchain
by Michel Kasser (Switzerland), Geographic Engineer and University Professor, Honorary President of the Association francophone de topographie (AFT) and President of the Ingénieurs Géomètres de Suisse Occidentale (IGSO)
In the midst of a political and scientific revolution in France at the end of the 18th century, how did the Académie des Sciences choose Delambre and Méchain? Why the choice of the meridian? Why the name "meter"?
Episode 2: The story of the Delambre & Méchain expedition from Dunkirk to Barcelona
by Bernard Flacelière (France), Vice-president of the Association francophone de topographie (AFT), editor-in-chief of the journal XYZ
On June 25, 1792, two astronomers, Jean-Baptiste Delambre and Pierre Méchain, left Paris. They were charged with measuring the length of the meridian between Dunkirk and Barcelona in order to establish a universal standard of measurement.
Episode 3: From the digital chain to the dynamic chain
by SAS Géofoncier
The reconstruction of the chain of triangles measured by Delambre and Méchain and dynamic presentation in the Géofoncier.fr portal. A tour of the chain and a pictorial and commented discovery of some remarkable or symbolic points.
Episode 4: Meridian of Delambre and Méchain: Principle, measurements, calculations and precisions
by Françoise Duquenne (France), Engineer Geographer, President of the Association francophone de topographie (AFT)
What methods, calculations and instruments were used? What was the quality of the data obtained?
Episode 5: After the measurement: past and present resistance to the metric system
by Bertrand Juompan (France), Surveyor
The introduction of the new units, which sometimes overturned centuries-old habits, came up against cultural as well as political and economic obstacles. Today, despite the unification of systems of weights and measures, some singularities remain in certain countries or fields of activity.
|
