Famous French astronomer born in Estagel, near Perpignan, in 1786 and died in Paris in 1853.
As physicist and astronomer, his studies included the observation of the visible face of the Sun and its flipside, the solar planets, and electricity by magnetism induction. He/She experienced the laws of polarization of the light and the invention of several instruments to observe the different properties of the light.
In his youth he/she worked a job in the section lengths of the Astronomical Observatory of Paris. He/She was then commissioned in 1806, with other three wise men, to give a perfect measure of the Arch of the terrestrial meridian, for which purpose he/she undertook a journey that was filled with penalties. He/She returned to his country in 1808, after giving a happy ending to the company. Thus earned the honor of being admired at the French Academy at the age of twenty-three. In that same year he/she was appointed Professor at the Polytechnic School, where he/she was Professor of Geodesy and analysis for more than twenty years.
The importance of Arago in the world of photography is that it was the introducer of the daguerreotype in the scientific world and the society of his time. He/She was the first to recognize the importance of the Daguerreotype both in the world of communication, such as the science and art. Thanks to his estaturs's Deputy, presented it to the Permanent Secretary of the Academy of Sciences, the Academy of fine arts and in the Congress of Deputies on August 19, 1839. The details of the invention of Daguerre made public thereafter.
In 1830 he/she was elected member of the Chamber of Deputies, and later of the General Council of the Department of the Seine, of which Corporation was President a long time. In 1848 he/she was part of the Provisional Government of the Republic, and later served the Ministry of marine and war, at which time proposed the immediate emancipation of the blacks of the French colonies. Among his scientific work are the part that took on the establishment of the rotating headlights, many discoveries that have served as the basis of electric telegraphy and other application to the industry. As politician ever defended the democratic doctrines, refused oath to power in two times of the Empire. For the restoration of this until his death retired from public life.