how high up is the first floor of the eiffel tower
Eiffel Tower Many innovations took place at the Eiffel Tower in the early 20th century. In 1910, Father Theodor Wulf measured radiant energy at the top and bottom of the tower. He found more at the top than expected, incidentally discovering what are known today as cosmic rays.[30] Just two years later, on 4 February 1912, Austrian tailor Franz Reichelt died after jumping from the first level of the tower (a height of 57 metres) to demonstrate his parachute design.[31] In 1914, at the outbreak of World War I, a radio transmitter located in the tower jammed German radio communications, seriously hindering their advance on Paris and contributing to the Allied victory at the First Battle of the Marne.[32] From 1925 to 1934, illuminated signs for Citroën adorned three of the tower's sides, making it the tallest advertising space in the world at the time.[citation needed] In April 1935, the tower was used to make experimental low-resolution television transmissions, using a shortwave transmitter of 200 watts power. On 17 November, an improved 180-line transmitter was installed.[33]
Taipei 101 Taipei 101 comprises 101 floors above ground, as well as 5 basement levels. It was not only the first building in the world to break the half-kilometer mark in height,[3] but also the world's tallest building from March 2004 to 10 March 2010.[15][16] As of 28 July 2011[update], it is still the world's largest and highest-use green building.[11][12]
Limit of a function (the Dirichlet function) has no limit at any x-coordinate.
Empire State Building On the 102nd floor of the Empire State Building (formerly the 101st floor), there is a door with stairs ascending to the 103rd floor (formerly the 102nd).[f] This was built as a disembarkation floor for airships tethered to the building's spire, and has a circular balcony outside.[14] It is now an access point to reach the spire for maintenance. The room now contains electrical equipment, but celebrities and dignitaries may also be given permission to take pictures there.[272][273] Above the 103rd floor, there is a set of stairs and a ladder to reach the spire for maintenance work.[272] The mast's 480 windows were all replaced in 2015.[274]