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Γραμμή 4:
It is colloquially and popularly known as '''Big Ben''', however this name actually belongs to the clock's main bell. The tower has also been incorrectly referred to as '''St. Stephen's Tower'''.
==Structure==
[[image:clock.tower.from.westminster.br.arp.750pix.jpg|thumb|left|250px|The [[Palace of Westminster]] and the Clock Tower on the north-eastern end, from [[Westminster Bridge]].]]
The tower was raised as a part of [[Charles Barry]]'s design of a new palace, after the old [[Palace of Westminster]] was destroyed by fire on the night of [[October 16]], [[1834]]. The tower is designed in the [[Victorian Gothic]] style, and is 96.3 metres (316 feet) high.
The first 61 metres (200 feet) of the structure is the clock tower, consisting of brickwork with stone cladding; the remainder of the tower's height is a framed spire of cast iron. The tower is founded on a 15 by 15 metres (49 by 49 feet) raft, made of 3 metres (9 feet) thick concrete, at a depth of 7 metres (23 feet) below ground level. The tower has an estimated weight of 8,667 tonnes (9,553 tons). The four clock faces are 55 metres (180 feet) above ground.
Due to ground conditions present since construction, the tower leans slightly to the north-west, by roughly 220 millimetres (8.66 inches). Due to thermal effects it oscillates annually by a few millimetres east and west. [http://www.geolsoc.org.uk/template.cfm?name=BA5]
==Clock faces==
Γραμμή 19 ⟶ 24 :
During [[World War II]], the Palace of Westminster was hit by [[Germany|German]] bombing, destroying the [[British House of Commons|House of Commons]] and causing damage to the tower's western clockface.
==The main bell==
Big Ben, officially known as the Great Bell of Westminster, is the largest bell in the tower and part of the Great Clock of Westminster.
The Great Bell chimes E, weighs 13 [[tonne|metric tonnes]] and is 2.2 [[metre]]s high. It was cast on Saturday [[April 10]], [[1856]] in [[Stockton-on-Tees]] by [[George Mears]]. After the casting the bell was given a test ring and broke in half, resulting in it being recast at the [[Whitechapel Bell Foundry]].
With the bell recast it was installed into the clock tower, but once again a crack formed. To prevent further damage to the bell it was rotated and the main hammer was reduced in weight.
The exact origin of the name 'Big Ben' has remained a popular mystery, leading to speculation that suggests the bell was named after heavyweight boxer Benjamin Caunt who was popular at the time, however an alternate theory that has been supported cites the origin of the name as belonging to Sir Benjamin Hall who was the Parliamentary Commissioner of Works.
The BBC first broadcast the chimes on [[31 December]] [[1923]] - there is a microphone in the turret connected to Broadcasting House.
===Other bells===
Along with the main bell, the [[belfry (architecture)|belfry]] houses four [[quarter bells]] which play the [[Westminster Quarters]] on the quarter hours. The four quarter bells are G sharp, F sharp, E, and B. They play a 20 chime sequence, 1-4 at quarter past, 5-12 at half past, 13-20,1-4 at quarter to, and 5-20 on the hour. Because the low bell (B) is struck twice in quick succession, there is not enough time to pull a hammer back, and it is supplied with two hammers on opposite sides of the bell.
==Similar turret clocks==
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