Jacques Charles
Overview
Charles and the Robert brothers
Robert brothers
Les Frères Robert were two French brothers. Anne-Jean Robert , and Nicolas-Louis Robert , The brothers were the engineers who built the world's first hydrogen balloon for professor Jacques Charles; it flew from central Paris on...
launched the world's first (unmanned) hydrogen-filled balloon
Balloon
A balloon is an inflatable flexible bag filled with a gas, such as helium, hydrogen, nitrous oxide, oxygen, or air. Modern balloons can be made from materials such as rubber, latex, polychloroprene, or a nylon fabric, while some early balloons were made of dried animal bladders, such as the pig...
in August 1783, then in December 1783, Charles and his co-pilot Nicolas-Louis Robert
Robert brothers
Les Frères Robert were two French brothers. Anne-Jean Robert , and Nicolas-Louis Robert , The brothers were the engineers who built the world's first hydrogen balloon for professor Jacques Charles; it flew from central Paris on...
ascended to a height of about 1,800 feet (550 m) in a manned balloon. Their pioneering the use of hydrogen for lift led to this type of balloon being named a Charlière (as opposed to a Montgolfière which used hot air).
Charles's law
Charles's law
Charles' law is an experimental gas law which describes how gases tend to expand when heated. It was first published by French natural philosopher Joseph Louis Gay-Lussac in 1802, although he credited the discovery to unpublished work from the 1780s by Jacques Charles...
, describing how gases tend to expand when heated, was formulated by Joseph Louis Gay-Lussac
Joseph Louis Gay-Lussac
- External links :* from the American Chemical Society* from the Encyclopædia Britannica, 10th Edition * , Paris...
in 1802, but he credited it to unpublished work by Jacques Charles.
Charles was elected to the Académie des Sciences, in 1793, and subsequently became professor of physics at the Conservatoire des Arts et Métiers.
Charles was born in Beaugency-sur-Loire
Beaugency
Beaugency is a commune in the Loiret department in north-central France. It is located on the Loire river, upriver from Blois and downriver from Orléans.-History:...
in 1746, He married Julie Françoise Bouchaud des Hérettes (1784–1817), a creole
Creole peoples
The term Creole and its cognates in other languages — such as crioulo, criollo, créole, kriolu, criol, kreyol, kreol, kriulo, kriol, krio, etc. — have been applied to people in different countries and epochs, with rather different meanings...
a sheman 37 years younger than himself.
Unanswered Questions
