9. The tower housed a scientific laboratory
Eiffel engraved the names of 72 of the country’s scientists in the tower’s first-level gallery, and atop the structure he installed a laboratory that was used by himself and French scientists to study astronomy, meteorology, aerodynamics and physiology and test experiments such as Foucault’s Pendulum. In 1909 Eiffel installed an aerodynamic wind tunnel at the base of the tower that carried out thousands of tests, including those on Wright Brothers airplanes and Porsche automobiles.
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