Clément Ader est un ingénieur célèbre. Son anniversaire est 2 Avril 1841. La date de sa mort est 5 mars 1925. Aussi il est un écrivain et il a écrit le livre "L'Aviation Militaire".
Ader was born in Muret, Haute Garonne France and is known mostly for his great work in the field of aviation. Most of his early life was spent working and studying electrical engineering. In 1878 he helped perfect the telephone invented by Alexander Graham Bell. In 1881 he invented the théâtrophone which enable listeners to get a separate sound in each ear and better perceive the actors on a set. In 1903, he created a V-8 engine for the Paris-Madrid rally. He made 4 of this engines and sold none of them. After this and until the end of his life most of his time and money was spent on aviation. he followed the studies of Louis Pierre Mouillard, whom studied birds, to create his first flying machine in 1886. The Éole, which is the name of his flying machine, weighed about 650 pounds and on October 9, 1890 the first attempt to fly it was made. the flight was caotic and lasted about 50 meters and this flight was 13 years before the Wright brothers. Later on he published ideas for the Aircraft carrier which the United States later used to develop their own. He is often discredited by historians for his work because all of his planes crashed. During his career Ader was funded by the french war office whom later hid his ideas and stopped funding him becasue his last flying machine crashed. These ideas were released after the Wright brothers made their flight. Ader went a little crazy later on in life and finally died on March 5, 1925.