Dunkirk-Barcelona triangulation charts

Here are the maps created by French surveyors in the face of extreme weather, demolished triangulation points (church spires had a bad time) and bloodthirsty mobs in order to calculate, with what we now know was an extraordinary degree of accuracy, the physical length of the 1791 commission’s definition of the metre as one ten…

Albert Boadella and the Catalan press

Here. This is a variant of the famous review2 attributed to Reger, Brahms and others: “Sir, I am seated in the smallest room of my house. I have your review in front of me. Soon it will be behind me.”