Jacques Alesandre Cesar was born in Beaugency, Orleanais back in 1746. The next time you can find anything about him was when he married Julie who was a creole woman 37 years younger than he was. He wrote a paper describing how gases tend to expand when heated, he was elected to the Academie des Sciences in 1795, later he became a professor of physics at the Adademie.
This one is going to be short. What you may not know about Jacques Alesandre Cesar Charles is that he was the first person to launch the world’s first unmanned hydrogen-filled gas balloon in 1783. Later that same year Charles and his co-pilot Nicolas-Louis Robert ascended to a height of about 1,800 feet in a manned gas balloon. Charles invented the airtight gas bag by dissolving rubber in a solution of turpentine and varnished the sheets of sild that were stitched together to make the balloon.
The first ride lasted 2.5 hours and the flight took them almost 22 miles away. They were followed by a group of men on horses staged along the way.
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