Emile Girardeau
Encyclopedia
Émile Girardeau was a French
engineer
, famous for being the first person to patent the original system of frequencies that is used today and known as the radar
. He was born in 1882 at Luçon
, France (the Vendée
).
In his early life he attended the École Polytechnique
(Polytechnic School) (1902-1908) and became the Instructor at the École nationale des ponts et chaussées
(National School of Bridges and Roads). By 1910, Girardeau established the first radiotelegraphic
radio connection in tropical countries with Joseph Béthenod. The radio connection systems were designed for the Radioelectric French Company.
In 1919, Girardeau was promoted to Chevalier of the Legion of Honour
for services in war. In 1922, Girardeau set in motion the idea for the creation of a public utility
of information
and music
. Also in 1922, Girardeau helped establish the first private radio station
in France, called RADIOLA, which at the end of March 1929 became Radio Paris
. In 1931, Girardeau was promoted to Commander of the Legion of Honour.
In 1934, Girardeau headed the team which developed the first RADAR
system in France. In 1939, Girardeau built with Maurice Ponte radar installations for the defence of Paris
against planes (which were destroyed in June 1940). Girardeau http://www.radar-france.net/Emile%20Girardeau.htm recalled in a testimony that they were at the time intending to build radar systems "conceived according to the principles stated by Tesla
". After the fall of France to Germany
, Girardeau created a factory for underground forces of free France.
In 1944, Girardeau re-established radio communications in France. In 1945, Girardeau became a member of the Académie navale. In 1954, Girardeau became a member of the Académie des sciences morales et politiques. In 1970, Girardeau died in Paris.
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...
engineer
Engineer
An engineer is a professional practitioner of engineering, concerned with applying scientific knowledge, mathematics and ingenuity to develop solutions for technical problems. Engineers design materials, structures, machines and systems while considering the limitations imposed by practicality,...
, famous for being the first person to patent the original system of frequencies that is used today and known as the radar
Radar
Radar is an object-detection system which uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. The radar dish or antenna transmits pulses of radio...
. He was born in 1882 at Luçon
Luçon
Luçon is a commune in the Vendée department in the Pays de la Loire region in western France.It is the seat of the Diocese of Luçon and Luçon Cathedral.-References:*...
, France (the Vendée
Vendée
The Vendée is a department in the Pays-de-la-Loire region in west central France, on the Atlantic Ocean. The name Vendée is taken from the Vendée river which runs through the south-eastern part of the department.-History:...
).
In his early life he attended the École Polytechnique
École Polytechnique
The École Polytechnique is a state-run institution of higher education and research in Palaiseau, Essonne, France, near Paris. Polytechnique is renowned for its four year undergraduate/graduate Master's program...
(Polytechnic School) (1902-1908) and became the Instructor at the École nationale des ponts et chaussées
École Nationale des Ponts et Chaussées
Founded in 1747, the École nationale des ponts et chaussées , often referred to as les Ponts, is the world's oldest civil engineering school...
(National School of Bridges and Roads). By 1910, Girardeau established the first radiotelegraphic
Wireless
Wireless telecommunications is the transfer of information between two or more points that are not physically connected. Distances can be short, such as a few meters for television remote control, or as far as thousands or even millions of kilometers for deep-space radio communications...
radio connection in tropical countries with Joseph Béthenod. The radio connection systems were designed for the Radioelectric French Company.
In 1919, Girardeau was promoted to Chevalier of the Legion of Honour
Légion d'honneur
The Legion of Honour, or in full the National Order of the Legion of Honour is a French order established by Napoleon Bonaparte, First Consul of the Consulat which succeeded to the First Republic, on 19 May 1802...
for services in war. In 1922, Girardeau set in motion the idea for the creation of a public utility
Public utility
A public utility is an organization that maintains the infrastructure for a public service . Public utilities are subject to forms of public control and regulation ranging from local community-based groups to state-wide government monopolies...
of information
Information
Information in its most restricted technical sense is a message or collection of messages that consists of an ordered sequence of symbols, or it is the meaning that can be interpreted from such a message or collection of messages. Information can be recorded or transmitted. It can be recorded as...
and music
Music
Music is an art form whose medium is sound and silence. Its common elements are pitch , rhythm , dynamics, and the sonic qualities of timbre and texture...
. Also in 1922, Girardeau helped establish the first private radio station
Radio station
Radio broadcasting is a one-way wireless transmission over radio waves intended to reach a wide audience. Stations can be linked in radio networks to broadcast a common radio format, either in broadcast syndication or simulcast or both...
in France, called RADIOLA, which at the end of March 1929 became Radio Paris
Radio Paris
Radio Paris was a French radio broadcasting company best known for its Axis propaganda broadcasts in Vichy France during World War II.Radio Paris evolved from the first private radio station in France, called Radiola, founded by pioneering French engineer Émile Girardeau in 1922...
. In 1931, Girardeau was promoted to Commander of the Legion of Honour.
In 1934, Girardeau headed the team which developed the first RADAR
Radar
Radar is an object-detection system which uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. The radar dish or antenna transmits pulses of radio...
system in France. In 1939, Girardeau built with Maurice Ponte radar installations for the defence of Paris
Paris
Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...
against planes (which were destroyed in June 1940). Girardeau http://www.radar-france.net/Emile%20Girardeau.htm recalled in a testimony that they were at the time intending to build radar systems "conceived according to the principles stated by Tesla
Nikola Tesla
Nikola Tesla was a Serbian-American inventor, mechanical engineer, and electrical engineer...
". After the fall of France to Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...
, Girardeau created a factory for underground forces of free France.
In 1944, Girardeau re-established radio communications in France. In 1945, Girardeau became a member of the Académie navale. In 1954, Girardeau became a member of the Académie des sciences morales et politiques. In 1970, Girardeau died in Paris.
External links and references
- "Emile Girardeau". L'histoire du "radar ", les faits (tr. The history of the "radar", the facts)