Attractions
The French National Assembly is the lower house of the bicameral Parliament of France under the Fifth Republic. The other is the Senate (?Sénat?).
The metal structure of the Eiffel Tower weighs tonnes while the entire structure including non-metal components is approximately tonnes. Depending on the ambient temperature, the top of the tower may shift away from the sun by up to 18 cm (7 in) because of thermal expansion of the metal on the side facing the sun. The tower also sways 6–7 cm (2–3 in) in the wind. As demonstration of the economy of design, if the 7300 tonnes of the metal structure were melted down it would fill the 125 meter square base to a depth of only 6 cm (2.36 in), assuming a density of the metal to be 7.8 tonnes per cubic meter. The tower has a mass less than the mass of the air contained in a cylinder of the same dimensions,