However, shortly afterwards Nepveu's company went bankrupt, but Nepveu found Eiffel a job with the Compagnie des Chemins de Fer de l ' Ouest, for whom Eiffel produced his first bridge design, a sheet iron bridge for the Saint Germaine railway.

After his retirement from the Compagnie des Establissments Eiffel, Eiffel went on to do important work in meteorology and aerodynamics.

Next, the Klassen family went to Paris, where they again went sight-seeing, visiting the Eiffel Tower and other famous landmarks.

Four other open source implementations are available: " The Eiffel Compiler " tecomp, Gobo Eiffel, SmartEiffel — the GNU implementation, based on an older version of the language — and Visual Eiffel.

Sather, for example, was originally based on Eiffel but has since diverged, and now includes several functional programming features.

The standard was developed by ECMA International, which first approved the standard on 21 June 2005 as Standard ECMA-367, < cite > Eiffel: Analysis, Design and Programming Language </ cite >.

The standard can be found and used free of charge on the ECMA site .< ref > ECMA International: < cite > Standard ECMA-367 — Eiffel: Analysis, Design and Programming Language 2nd edition ( June 2006 )</ cite >; available online at www. ecma-international. org / publications / standards / Ecma-367. htm The ISO version < ref > International Organisation for Standardisation: < cite > Standard ISO / IEC DIS 25436 </ cite >, available online at is identical in all respects except formatting.

Unlike other languages, having notions of " public ", " private " and so on, Eiffel uses an exporting technology to more precisely control the scoping between client and supplier classes.

The design of the European flag was displayed on the Eiffel Tower in Paris to celebrate the French presidency of the EU in the second half of 2008.

After his retirement from engineering, Eiffel concentrated his energies on research into meteorology and aerodynamics, making important contributions in both fields.

The business was successful enough for Catherine Eiffel to sell the business in 1843 and retire on the proceeds.

Following the completion of the project on schedule Eiffel was appointed as the principal engineer of the Compagnie Belge.

In order to carry out this work, Eiffel and Henri Treca, the director of the Conservatoire des Arts et Metiers, conducted valuable research on the structural properties of cast iron, definitively establishing the modulus of elasticity applicable to compound castings.

The price quoted by Eiffel was FF. 965, 000, far below the nearest competitor and so he was given the job, although since his company was less experienced than his rivals the Portuguese authorities appointed a committee to report on Eiffel et Cie's suitability.

To assist him in the work he took on several people who were to play important roles in the design and construction of the Eiffel Tower, including Maurice Koechlin, a young graduate of the Zurich Polytechnikum, who was engaged to undertake calculations and make drawings, and Emile Nouguier, who had previously worked for Eiffel on the construction of the Douro bridge.

The same year Eiffel started work on a system of standardised prefabricated bridges, an idea that was the result of a conversation with the governor of Cochin-China.

The design was exhibited at the Exhibition of Decorative Arts in the autumn of 1884, and on 30 March 1885 Eiffel read a paper on the project to the Société des Ingiénieurs Civils.

By June construction had reached the second level platform, and on Bastille Day this was used for a fireworks display, and Eiffel held a celebratory banquet for the press on the first level platform.

The main structural work was completed at the end of March, and on the 31st Eiffel celebrated this by leading a group of government officials, accompanied by representatives of the press, to the top of the tower.

* 1995: A concert with Jean Michel Jarre was held at the Eiffel Tower in Paris.

Indicate location-Establishing shots may use famous landmarks to indicate the city where the action is taking place or has moved to, such as the Empire State building or the Statue of Liberty to identify New York, the London Eye or Big Ben to identify London, the Sydney Opera House to identify Sydney, the Eiffel Tower to identify Paris, or the Las Vegas Strip to identify Las Vegas.

* Eiffel Tower in Paris, designed by Gustave Eiffel in motif as twin to the Eiffel Bridge, re-dubbed Maria Pia Bridge, previously built in Porto, Portugal

* Maria Pia Bridge in Porto, Portugal, designed and build by Gustave Eiffel-Preceding fraternal twin of Eiffel Tower in Paris, France

* Eiffel Bridge, Zrenjanin, Serbia, build by Gustave Eiffel's company in Paris

He is best known for the world-famous Eiffel Tower, built for the 1889 Universal Exposition in Paris, France.

Eiffel had hoped to enter the École Polytechnique, but his tutors decided that his performance was not good enough, and instead he qualified for entry to the École Centrale des Arts et Manufactures in Paris, which offered a rather more vocational training.

This was the year that Paris hosted the first World's Fair, and Eiffel was bought a season ticket by his mother

Some of Nepveu's businesses were then acquired by the Compagnie Belge de Matériels de Chemin de Fer: Nepveu was appointed the managing director of the two factories in Paris, and offered Eiffel a job as head of the research department.

The entire statue was erected at the Eiffel works in Paris before being dismantled and shipped to the United States.

In 1889 the Exposition Universelle took place in Paris, and the Eiffel Tower was built as a temporary gate to the fair.

He is considered the father of spaceflight and the first person to conceive the space elevator, becoming inspired in 1895 by the newly-constructed Eiffel Tower in Paris.

* 1889 – The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.

" Following a tradition of American cities named " Paris ", a replica of the Eiffel Tower was constructed in 1993.

The current tower is at least the second Eiffel Tower replica built in Paris ; the first was constructed of wood and later destroyed by a tornado.

* Paris Eiffel Tower 70-foot Paris Eiffel Tower with the red cowboy hat at its summit

The key concept of the space elevator appeared in 1895 when Russian scientist Konstantin Tsiolkovsky was inspired by the Eiffel Tower in Paris to consider a tower that reached all the way into space, built from the ground up to the altitude of geostationary orbit ( 35, 790 kilometers ( 22, 238 mi ) above sea level ).

* May 6 – The Exposition Universelle opens in Paris with the Eiffel Tower as its entrance arch.

The Director of Documentation for what was then the Société nouvelle d ' exploitation de la tour Eiffel ( SNTE ), Stéphane Dieu, commented in January 2005, " It is really just a way to manage commercial use of the image, so that it isn't used in ways we don't approve.

Eiffel emphasizes declarative statements over procedural code and attempts to eliminate the need for bookkeeping instructions.

Compilers for computer programs written in Eiffel provide extensive optimization techniques, such as automatic in-lining, that relieve the programmer of part of the optimization burden while producing code whose efficiency is comparable to that of code written in C ++.

EiffelEnvision is a plug-in for Microsoft Visual Studio that allows users to edit, compile, and debug Eiffel projects from within the Microsoft Visual Studio IDE.

Unlike many object-oriented languages, but like Smalltalk, Eiffel does not permit any assignment into fields of objects, except within the features of an object, which is the practical application of the principle of information hiding or data abstraction, requiring formal interfaces for data mutation.

An upshot of this is that " setters " can, and normally do, implement the invariants for which Eiffel provides syntax.

While Eiffel does not allow direct access to the features of a class by a client of the class, it does allow for the definition of an " assigner command ", such as:

* Eiffel Encryption Library: Open source cryptography library for the Eiffel language

* EiffelStudio, a development environment for the Eiffel programming language

Eiffel was not a studious child, and thought his classes at the Lycée Royal in Dijon boring and a waste of time, although in his last two years, influenced by his teachers for history and literature, he began to study seriously, so that he managed to gain his baccalauréats in humanities and science.

In 1875 Eiffel et Cie were given two important contracts, one for a new terminus for the line from Vienna at Budapest and the other for a bridge over the river Douro in Portugal.