Why Is the Eiffel Tower Shaped Like That?

In 1887 the best-known artists in France called Gustave Eiffel's tower useless and monstrous, a black factory chimney over Paris. Eiffel's answer wasn't about beauty at all. It was about the wind. This is the story of the invisible force that drew the Eiffel Tower's curve, tore apart a brand-new bridge in 1940, left a New York skyscraper one storm from disaster, and shapes the tallest building on Earth. Chapters 0:00 Paris, 1887: the tower nobody wanted 0:59 Eiffel's 300-metre gamble 2:02 Is the curve just art? 2:56 Eiffel's answer: the wind 3:38 The first rule of wind engineering 3:56 Tacoma Narrows, 1940: the bridge that twisted 5:25 Why tall buildings sway: Taipei 101 and Citicorp 6:49 The textbook myth, and the Burj Khalifa 8:02 The wind's signature A true story, told from the published research. Archive photographs and film are labelled on screen; the scenes in between are AI recreations, and the narration is an AI voice. Real people are named, never shown in a recreation. Sources are listed below. Sources S1. The artists' protest against the tower and Eiffel's reply that the wind was the first thing he had to design for: Le Temps, 14 February 1887 (Gallica, BnF); Henri Loyrette, Gustave Eiffel (Rizzoli, 1985). S2. The tower's figures (18,038 iron pieces, 2.5 million rivets, 2 years 2 months 5 days, the state's 1.5 million of about 6.5 million francs): Société d'Exploitation de la Tour Eiffel, toureiffel.paris. Eiffel's company and the Statue of Liberty's iron framework: US National Park Service, nps.gov/stli. S3. The tower's profile and the wind: P. Weidman and I. Pinelis, 'Model equations for the Eiffel Tower profile: historical perspective and new results', Comptes Rendus Mécanique 332(7): 571-584 (2004). S4. Wind engineering: E. Simiu and R. H. Scanlan, Wind Effects on Structures, 3rd ed. (Wiley, 1996). S5. The Tacoma Narrows Bridge, 1940: Washington State Department of Transportation, 'Tacoma Narrows Bridge history' (wsdot.wa.gov); O. H. Ammann, T. von Kármán and G. B. Woodruff, The Failure of the Tacoma Narrows Bridge (Federal Works Agency, 1941). S6. Flutter, not resonance: K. Y. Billah and R. H. Scanlan, 'Resonance, Tacoma Narrows bridge failure, and undergraduate physics textbooks', American Journal of Physics 59(2): 118-124 (1991), doi:10.1119/1.16590. S7. Taipei 101's 660-tonne tuned mass damper: Council on Tall Buildings and Urban Habitat (ctbuh.org); taipei-101.com.tw. S8. Citicorp Center, 1978: Joe Morgenstern, 'The Fifty-Nine-Story Crisis', The New Yorker, 29 May 1995. S9. Burj Khalifa's setbacks that 'confuse the wind': W. F. Baker, D. S. Korista and L. C. Novak, 'Burj Dubai: engineering the world's tallest building', The Structural Design of Tall and Special Buildings 16(4): 361-375 (2007); Skidmore, Owings & Merrill, som.com. S10. Snapping flags and humming wires: R. D. Blevins, Flow-Induced Vibration, 2nd ed. (Van Nostrand Reinhold, 1990). Scenes in this video are AI-generated and the narration is an AI voice. Every claim is checked against the sources listed above. General information, not medical, financial or professional advice. Prizma: the whole spectrum of knowledge, made clear. Subscribe for the next one.