Milestones: Tuesday, November 21, 2023
FRENCH PAPERMAKERS’ SUCCESS — THE FIRST UNTETHERED HOT-AIR BALLOON FLIGHT TOOK PLACE on Nov. 21, 1783, when French physician Jean-François Pilatre de Rozier and François Laurent, the Marquis d’ Arlandes, rose above an expectant crowd and then flew more than five miles over Paris within a 25-minute period. Their balloon craft was the product of Joseph and Étienne Montgolfier’s successful paper business, so profitable that it financed the brothers’ passion for scientific exploration. The previous year, Les Frères Montgolfier had discovered that a lightweight paper or fabric bag could rise into the air with combustible materials underneath it; however, they attributed the elevation to smoke rather than to its real cause: hot air. They gave previous public demonstrations with an unmanned hot air balloon on June 4 of that year and another one in September with a sheep, a rooster and a duck, all of which glided for about eight minutes before landing safely two miles away.
The French Acadámie des Sciences honored the Montgolfier Brothers for their accomplishments.
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