Why did they make Big Ben blue?

Big Ben*, the icon of London, has turned blue. Except it hasn't 'turned' blue exactly — it's simply reverted to its original colour. The clock face was blue when built in 1859, but over time it turned black due to a London that was even more polluted than our city is today.



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When completed, the frame and hands were Prussian blue, but were painted black in the 1930s to disguise the effects of air pollution. The original colour scheme was reinstated during the 2017–2021 conservation work. It was found that no fewer than six different colour schemes had been used over the past 160 years.

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When completed, the frame and hands were Prussian blue, but were painted black in the 1930s to disguise the effects of air pollution. The original colour scheme was reinstated during the 2017–2021 conservation work.

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Although the clock will only be out of action for two years, the bells have to be silenced for the entire renovation period to protect the workers' hearing. The Big Ben bell weighs 13.76 tonnes and chimes at 118 decibels. At that volume, people would suffer hearing damage after just 14 seconds of exposure.

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Parliament has restored the clock tower to its former glory, as well as modernising and upgrading facilities to make it fit for the 21st century. This is vital to ensure that this iconic building, situated on a UNESCO World Heritage site, is safeguarded for future generations to visit and enjoy.

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Prime Minister David Cameron welcomed the name change. “The renaming of the Clock Tower to the Elizabeth Tower is a fitting recognition of the Queen's 60 years of service. This is an exceptional tribute to an exceptional monarch,” he said. Reactions among the public were mixed, however.

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1 September 1939: Although the bells continued to ring, the clock faces were not illuminated at night throughout World War II to avoid guiding bomber pilots during the Blitz. 10/11 May 1941: the clock was damaged during a German bombing raid, either by a small bomb or by a British anti-aircraft shell.

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The hiatus was prompted by upcoming renovations on Elizabeth Tower, which houses both Big Ben and the Great Clock that adorns the façade of the structure. According to a statement from the UK Parliament, Big Ben was paused to “ensure the safety of those working in the Tower.”

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The 13-tonne Big Ben bell was largely silenced for five years while a major restoration of the Elizabeth Tower took place, with the “bongs” finally resuming regular service in November 2022.

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LONDON, Sept 6 (Reuters) - The restoration of Britain's iconic Big Ben tower at the Houses of Parliament has moved closer to completion with the return of the hands on its famous clock, now restored to their original Prussian blue colour.

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At close proximity, the sound of Big Ben measures 118 decibels, which is loud enough to cause physical pain. To make the bell chime, the copper and tin bell is struck by a hammer weighing 200kg. The bell, weighing 13.7 tonnes itself, makes the musical note “E” when struck.

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At close proximity, the sound of Big Ben measures 118 decibels, which is loud enough to cause physical pain. To make the bell chime, the copper and tin bell is struck by a hammer weighing 200kg.

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2012: The Clock Tower is renamed the Elizabeth Tower to honour HM Queen Elizabeth II's Diamond Jubilee.

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Visitors will be able to book a maximum of eight tickets per person, depending on availability. The Big Ben tour is not suitable for everyone. Visitors must be aged 11 and over and be comfortable climbing 334 steps and experiencing high noise levels from the clock mechanism and bells - earplugs will be provided.

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