The large clock on the tower of Westminster Abbey is the world's largest four-sided striking clock. The height of the tower is 96 meters; a narrow spiral staircase of 334 steps is hidden inside it. After passing all of them, you can get to a small open area with the famous Big Ben bell. He beats the time every hour, and his sounds are broadcast hourly by BBC radio throughout the country. It was this bell that gave the name to both the clock and the tower itself. The bell is large: 2 meters high and 3 meters at the base. The dimensions of the watches are no less striking: their diameter is 7 meters, and the hands are 2, 7 and 4, 2 meters long.
The watch was designed by Sir Edmund Beckett and Astronomer Royal George Airy. The creation of the watch was entrusted to the watchmaker Edward John Dent, and after the master, his adopted son Frederick Dent took over the construction and completed the work in 1854.
The pendulum of the clock is mounted inside a windproof box located below the clockwork room. Its length is 4 meters, weight - 300 kg. The swing of the pendulum is 2 seconds. It is interesting that the accuracy of the clock is regulated by the keepers of the tower with the help of coins, which are placed on the pendulum: the old (10-decimal) 1 penny coin accelerates its movement by 0.4 seconds per day.
Four dials are made of opal glass, bordered with gilded frames and have a Latin inscription, which means “God save our Queen Victoria”. This clock also has a global meaning: officially, the new year on planet Earth begins with the first blow of Big Ben on January 1.
Interestingly, Londoners living near Westminster Palace hear thirteen bells of Big Ben on New Year's Eve: the effect is due to the fact that the speed of sound is slower than the speed of propagation of radio waves.
On September 12, 2012, the world famous Big Ben Clock Tower was officially renamed the Elizabeth Tower. This significant event took place in honor of the recent 60th anniversary of the Queen's reign.