Eiffel Tower in the context of "Air France Flight 8969"

Puddling is the process of converting pig iron to bar (wrought) iron in a coal fired reverberatory furnace. It was developed in England during the 1780s. The molten pig iron was stirred in a reverberatory furnace, in an oxidizing environment to burn the carbon, resulting in wrought iron. It was one of the most important processes for making the first appreciable volumes of valuable and useful bar iron (malleable wrought iron) without the use of charcoal. Eventually, the furnace would be used to make small quantities of specialty steels.

Though it was not the first process to produce bar iron without charcoal, puddling was by far the most successful, and replaced the earlier potting and stamping processes, as well as the much older charcoal finery and bloomery processes. This enabled a great expansion of iron production to take place in Great Britain, and shortly afterwards, in North America. That expansion constitutes the beginnings of the Industrial Revolution so far as the iron industry is concerned. Most 19th century applications of wrought iron, including the Eiffel Tower, bridges, and the original framework of the Statue of Liberty, used puddled iron.

A nonbuilding structure, often referred to simply as a structure, is any built structure or construction structure that is not a building, i.e. not designed for continuous human occupancy. The term is particularly used by architects, structural engineers, and mechanical engineers to distinguish load-bearing structures not designed for continuous human occupancy.

The 7th arrondissement of Paris (VII arrondissement) is one of the 20 arrondissements of the capital city of France. It is known for being, along with the 16th arrondissement and the commune of Neuilly-sur-Seine, the richest neighbourhood in France. In spoken French, this arrondissement is referred to as le septième.

The arrondissement, called Palais-Bourbon in a reference to the seat of the National Assembly, includes some of the major and well-known tourist attractions of Paris, such as the Eiffel Tower, the Hôtel des Invalides (Napoleon's resting place), the Chapel of Our Lady of the Miraculous Medal, as well as a concentration of museums such as the Musée d'Orsay, Musée Rodin and the Musée du Quai Branly – Jacques Chirac.

Tokyo Tower (東京タワー, Tōkyō Tawā; pronounced [toːkʲoː taꜜɰᵝaː] ), a.k.a. Japan Radio Tower (日本電波塔, Nippon denpatō) is a communications and observation tower in the district of Shiba-koen in Minato, Tokyo, Japan, completed in 1958. At 332.9 m (1,092 ft), it was the tallest tower in Japan until the construction of Tokyo Skytree in 2012. It is a lattice tower inspired by the Eiffel Tower, and is painted white and international orange to comply with air safety regulations.

The tower's main sources of income are tourism and antenna leasing. FootTown, a four-story building directly under the tower, houses museums, restaurants, and shops. Departing from there, guests can visit two observation decks. The two-story Main Deck (formerly known as the Main Observatory) is at 150 m (490 ft), while the smaller Top Deck (formerly known as the "Special Observatory") reaches a height of 249.6 m (819 ft). The names were changed following renovation of the top deck in 2018. The tower is repainted every five years, taking a year to complete the process.

André-Marie Ampère (UK: /ˈæmpɛər/, US: /ˈæmpɪər/; French: [ɑ̃dʁe maʁi ɑ̃pɛʁ]; 20 January 1775 – 10 June 1836) was a French physicist and mathematician who was one of the founders of the science of classical electromagnetism, which he referred to as electrodynamics. He is also the inventor of numerous applications, such as the solenoid (a term coined by him) and the electrical telegraph. As an autodidact, Ampère was a member of the French Academy of Sciences and professor at the École polytechnique and the Collège de France.

The SI unit of electric current, the ampere (A), is named after him. His name is also one of the 72 names inscribed on the Eiffel Tower. The term kinematic is the English version of his cinématique, which he constructed from the Greek κίνημα kinema ("movement, motion"), itself derived from κινεῖν kinein ("to move").

Alexandre Gustave Eiffel (/ˈaɪfəl/ EYE-fəl, French: [alɛksɑ̃dʁ ɡystav ɛfɛl]; né Bonickhausen dit Eiffel; 15 December 1832 – 27 December 1923) was a French civil engineer. A graduate of École Centrale des Arts et Manufactures, he made his name with various bridges for the French railway network, most famously the Garabit Viaduct. He is best known for the Eiffel Tower, designed by his company and built for the 1889 Universal Exposition in Paris, and his contribution to building the Statue of Liberty in New York. After his retirement from engineering, Eiffel focused on research into meteorology and aerodynamics, making significant contributions in both fields.

The Pont Alexandre III (French pronunciation: [pɔ̃ alɛksɑ̃dʁ tʁwa]) is a deck arch bridge that spans the Seine in Paris. It connects the Champs-Élysées quarter with those of the Invalides and Eiffel Tower. The bridge is widely regarded as the most ornate, extravagant bridge in the city. It has been classified as a French monument historique since 1975.

In Paris, the Belle Époque (1871–1914) saw the construction of the Eiffel Tower, the Métro, the completion of the Opera, the Rue Réaumur and the beginning of the Basilica of Sacré-Cœur on Montmartre. Three lavish "universal expositions" in 1878, 1889, and 1900 brought millions of visitors to Paris to sample the latest innovations in commerce, art, and technology. Paris was the scene of the first public projection of a motion picture, and the birthplace of the Ballets Russes, Impressionism, and Modern Art.

The expression Belle Époque ("beautiful era") came into use after the First World War; it was a nostalgic term for what seemed a simpler time of optimism, elegance, and progress.

The Palais de Chaillot (French: [palɛ d(ə) ʃajo]) is a building atop the Chaillot hill [fr] in the Trocadéro area, in the 16th arrondissement of Paris, France.