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للتاريخ ههه😻✌🏾✌🏾Big Ben Tower (Elizabeth Tower) from an engineering, architectural and historical perspective: 1. Architectural details of the Elizabeth Tower: Height and weight: The height of the tower is 96 meters (about 16 floors), and the entire structure weighs about 8,667 tons. Foundation: The tower rests on a square concrete base 3 meters thick, immersed 4 meters underground to carry this enormous weight. Hydraulic tilt: Due to the nature of London’s clay soil and the excavation of the metro tunnels in the past, the tower currently tilts by a very slight degree (about 23 degrees centimeter) towards the northwest, which is a tilt that is not visible to the naked eye and does not constitute a danger. Materials used: The tower was built of bricks covered with “Aniston” limestone (from Yorkshire) and “Cadan” stone from France.2. Internal mechanical detail of the clockDesigners: The clock was designed by lawyer and astronomer Edmund Beckett Denison and clockmaker Edward Jr. Dent, and was completed in 1854, but it did not operate until 1859 due to delays in building the tower. Escapement: Denison invented a special escapement for the clock called the
للتاريخ ههه😻✌🏾✌🏾Big Ben Tower (Elizabeth Tower) from an engineering, architectural and historical perspective: 1. Architectural details of the Elizabeth Tower: Height and weight: The height of the tower is 96 meters (about 16 floors), and the entire structure weighs about 8,667 tons. Foundation: The tower rests on a square concrete base 3 meters thick, immersed 4 meters underground to carry this enormous weight. Hydraulic tilt: Due to the nature of London’s clay soil and the excavation of the metro tunnels in the past, the tower currently tilts by a very slight degree (about 23 degrees centimeter) towards the northwest, which is a tilt that is not visible to the naked eye and does not constitute a danger. Materials used: The tower was built of bricks covered with “Aniston” limestone (from Yorkshire) and “Cadan” stone from France.2. Internal mechanical detail of the clockDesigners: The clock was designed by lawyer and astronomer Edmund Beckett Denison and clockmaker Edward Jr. Dent, and was completed in 1854, but it did not operate until 1859 due to delays in building the tower. Escapement: Denison invented a special escapement for the clock called the "Modified Three-Legged Gravity Escapement". This invention isolated the clock's pendulum from the influence of strong winds, rain, and snow that hit the outside hands, making it the most accurate mechanical clock in the world at the time. Pendulum: The pendulum is 4.4 meters long, weighs 300 kilograms, and oscillates precisely once every two seconds.3. Details of the five bells and their ringing mechanism: Big Ben: 2.7 meters in diameter and 2.2 meters high. The external hammer that strikes it to announce the time alone weighs 200 kilograms. This bell was split in 1859, only two months after its installation, due to a very heavy hammer. It was rotated at a slight angle and the weight of the hammer was reduced to give the distinctive hoarse sound that we hear today instead of replacing it. Quarter-hour bells: There are 4 smaller bells surrounding the large bell, and together they weigh about 4.5 tons. These bells ring every 15 minutes in the famous “Westminster” tune inspired by a piece by the composer Handel.4. Details of the latest restoration (2017 - 2021) Original colours: During the restoration, experts discovered that the hands and bezel were painted black in the 1980s to hide traces of contamination. The original color of Prussian Blue has been restored with the decorations plated in 23-carat gold.Technical update: The watch has been completely disassembled (over 1,000 pieces) for cleaning, and the backlighting of the dials has been replaced with energy-efficient LEDs, which can be changed in color on national occasions. #الشعب_الصيني_ماله _حل😂😂 #تصميم_فيديوهات🎶🎤🎬 # #Love #لايك

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