the eiffel tower is made of steel or iron by cantilevers.
is the eiffel tower made of steel or iron?
cantilevers
the puddled iron (wrought iron) of the eiffel tower weighs 7,300 tons, and the addition of lifts, shops and antennae have brought the total weight to approximately 10,100 tons. as a demonstration of the economy of design, if the 7,300 tons of metal in the structure were melted down, it would fill the square base, on each side, to a depth of only assuming the density of the metal to be 7.8 tons per cubic metre. additionally, a cubic box surrounding the tower (324 m x 125 m x 125 m) would contain  tons of air, weighing almost as much as the iron itself. depending on the ambient temperature, the top of the tower may shift away from the sun by up to due to thermal expansion of the metal on the side facing the sun.
eiffel tower
eiffel tower (disambiguation)





























the eiffel tower is an iron lattice tower in paris.





























eiffel tower or eiffeltowers may also refer to:





























section::::structures.





























bullet::::- eiffel tower (cedar fair), two replicas at cedar fair amusement parks in ohio





























bullet::::- eiffel tower (paris, tennessee)





























bullet::::- eiffel tower (paris, texas)





























section::::other uses.





























bullet::::- "eiffel tower" (delaunay series), a cycle of paintings and drawings





























bullet::::- "eiffel tower" (shipwreck), a ship wrecked in south wales in 1894





























bullet::::- eiffeltowers nijmegen, a dutch basketball club which merged with tulip den bosch





























bullet::::- eiffeltowers den bosch or spm shoeters den bosch, a dutch basketball club
eiffel tower (disambiguation)