The Metric System: How France Measured the World

The metric system was born in the chaos of the French Revolution. This episode explores how a nation in upheaval replaced a jumble of regional measures with a single rational system based on the metre. We follow the improbable story of the astronomers Pierre Méchain and Jean-Baptiste Delambre, who spent years under suspicion measuring the meridian arc from Dunkirk to Barcelona. Their painstaking work, fraught with revolution and war, produced a unit of length defined not by a king's foot but by the Earth itself. We also discuss why the system took generations to catch on, how Napoleon both promoted and abandoned it, and why three countries—Liberia, Myanmar, and the United States—still hold out. Along the way, we touch on the creation of the kilogram, the original metre bar, and the tension between universal ideals and national pragmatism. #MetricSystem #FrenchRevolution #Metre #PierreMéchain #JeanBaptisteDelambre #MeridianArc #DunkirkToBarcelona #SystèmeInternational #HistoryOfScience #WeightsAndMeasures #Napoleon #DecimalSystem #Kilogram #BureauInternationalDesPoidsEtMesures #MéchainAndDelambre #RevolutionaryFrance #History #FexingoHistory Keep every episode free: buymeacoffee.com/fexingo