First Launch of Unmanned Hydrogen Balloon, 1783

Bildnummer 12626595
First Launch of Unmanned Hydrogen Balloon, 1783
Les Freres Robert, Anne-Jean Robert (1758-1820) and Nicolas-Louis Robert (1760-1820) launched the world's first hydrogen-filled balloon on August 27, 1783, from the Champ-de-Mars. Jacques Charles designed the balloon and the Robert brothers invented the methodology for constructing it. The balloon was a 1236 cubic-foot sphere of rubberized silk, and only capable of lifting about 20 lb. The hydrogen gas was fed into the envelope through lead pipes; but as it was not passed through cold water, great difficulty was experienced in filling the balloon completely. Daily progress bulletins were issued on the inflation; and the crowd was so great that on the 26th the balloon was moved secretly by night to the Champ-de-Mars. The balloon flew northwards for 45 minutes, pursued by chasers on horseback, and landed 13 miles away in the village of Gonesse where, reportedly, terrified local peasants attacked it with pitchforks and knives and destroyed
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Credit: Science Photo Library / Science Source
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