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English: Leaning Tower of Pisa
Italian: torre pendente di pisa or torre di pisa
Geographical coordinates: 43°43' 23"n,10°23' 47"e Introduction to [this paragraph].
The Leaning Tower of Pisa is located in Piazza Miracolia, north of the city of Pisa, in the province of Tuscany, Italy. The large lawns of the square are dotted with a group of religious buildings: the Cathedral (built in 1063-13th century), the Baptistery (built in 1153-14th century), the bell tower (the Leaning Tower of Pisa) and the cemetery (built in 1278-15th century), all of which are clad in cream marble, each relatively independent but in a unified Romanesque style. The Leaning Tower of Pisa is located behind the Cathedral of Pisa.
The bell tower was built in 1173 and was designed to be built vertically, but soon after the construction began, it was inclined due to the uneven foundation and soft soil, and was completed in 1372 with the tower tilting to the southeast.
The Leaning Tower of Pisa is the symbol of the city of Pisa, and in 1987 it was declared a World Heritage Site by the United Nations Educational, Scientific and Cultural Organization for its influence on Italian architecture from the 11th to the 14th centuries, along with the adjacent cathedral, baptistery and cemetery. [this paragraph] construction history.
The Leaning Tower of Pisa was built in 1173 by the famous architect Bonano Pisano. It is located on the right behind the Romanesque Cathedral and is the symbol of the city of Pisa. At the beginning, the height of the tower was designed to be about 100 meters, but five or six years after the construction began, the tower began to slope from the third floor, and continued to slope until it was completed, and before it closed, the top of the tower was tilted south (i.e., the top of the tower deviated from the vertical line) meters.
In 1990, Italy** closed it down and began to renovate it.
In practice, many experts have conducted a full study of the entire history of the Leaning Tower of Pisa, as well as the building materials, structure, geology, and water sources of the tower, and have used various advanced instruments and equipment for testing. After research, Professor Pilodi, a medieval historian of Pisa, believes that every stone brick used to build the tower is a stone carving, and the bonding between the stone bricks and the stone bricks is extremely ingenious, which effectively prevents the fracture caused by the tilt of the tower body, and becomes a factor that the leaning tower is inclined but does not fall. But he still stressed that the priority now is to understand the mystery of the Leaning Tower of Pisa.
Professor Gehry, an expert who has observed the tower, has speculated based on the rate at which the Leaning Tower of Pisa has been tilting in recent years that the Leaning Tower will collapse after 250 years because the center of gravity of the tower extends beyond the outer edge of the tower's base. However, the Leaning Tower of Pisa Service of the Public Ministry of Public Affairs countered Professor Gehry's argument that mathematical calculations alone were unreliable and that the Leaning Tower of Pisa was "a complex problem of multiple facts". Other researchers have found that the Leaning Tower of Pisa once tilted to the east and then to the south, and they also believe that the tower has not fallen over the past few hundred years, and that it may not be limited to simple assumptions and ** after 250 years.
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The Leaning Tower of Pisa, the bell tower of the most famous Pisa Cathedral in Italy. It was already oblique when it began to be built, and its construction began in 1173 and took two hundred years to complete. It is meters high and has 294 steps.
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The Leaning Tower of Pisa in Italy, its values include: 1 can attract tourists; 2. You can do a scientific experiment of throwing iron balls on it.
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Most people think of the Leaning Tower of Pisa, and they should think of a tower with an inclination of 20 to 30 degrees! And most people will think that he must be very tall, and the angle of inclination is also large, and it is obvious that it is oblique.
But is the real Leaning Tower of Pisa like this? The answer is no. If you don't believe it, you can take a look at the following two groups**, if you haven't seen the Leaning Tower of Pisa before**, will you know which real Leaning Tower of Pisa?
Some people may think that it is the first and second towers in there, but I will tell you that I am very wrong, this tower is a leaning tower on the outer island of Venice. But this leaning tower seems to look a little more inclined than the one below, doesn't it?
In fact, if you look at the Leaning Tower of Pisa up close, you may even wonder if it is the real thing. You might think it's just a model! No, it's the real Leaning Tower of Pisa.
The Leaning Tower of Pisa is exactly what it is, it is not as oblique as it was imagined, nor is it as majestic as it seems, it is just an ordinary small tower, only seven stories high, and almost straight.
Isn't it different from what you imagined the Leaning Tower of Pisa?
Then you may have to ask again, how can such an ordinary small tower become a symbol of Italy? You may have the story of your childhood, that is, Galileo Galileo threw two iron balls on the tower to prove that the weight of the object has nothing to do with the speed of fall.
But I'll tell you again, this story is also false, Galileo didn't throw iron balls down from the Leaning Tower of Pisa, and Galileo didn't need to prove it with this experiment at all. He had done such an experiment on paper, he simulated on paper, a small ball and a big ball with a wooden rod in the middle of the joint, from a high place to throw down, according to Aristotle's theory, the big ball should fall faster than the small ball, so the small ball is equivalent to a town refers to a parachute, slowing down the speed of the big ball's descent, but on the other hand, the weight of the big ball plus the small ball is far more than the big ball, so it should fall faster than the big ball. One theorem produces two results, then it is absolutely wrong.
So this proves that the weight of the object has nothing to do with the speed of descent.
It can be said that it is shallow on paper, and I never know that I have to bow down to it, and I really saw the Leaning Tower of Pisa only to find that we have been pitted for so many years!
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1. The Leaning Tower of Pisa (Italian: Torre Pendente di Pisa or Torre di Pisa, English: Leaning Tower of Pisa) was built in August 1173 and is an independent bell tower of the Cathedral of Pisa, Italy, located in Piazza del Miracolia in the north of Pisa, Tuscany, Italy.
2. A large lawn in the Place de la Miracoli is dotted with a group of religious buildings, namely the Cathedral (built in 1063-13th century), the Baptistery (built in 1153-14th century), the bell tower (the Leaning Tower of Pisa) and the cemetery (built in 1174), all of which are made of creamy marble on the façade, each relatively independent but forming a unified Romanesque architectural style. The Leaning Tower of Pisa is located behind the Cathedral of Pisa.
3. The Leaning Tower of Pisa is high from the foundation to the top of the tower, 55 meters high from the ground to the top of the tower, the width of the bell tower wall on the ground is meters, the width of the tower is meters at the top of the tower, the total weight is about 14,453 tons, and the center of gravity is above the foundation. The circular foundation has an area of 285 square meters and an average pressure on the ground of 497 kPa. The angle of inclination deviates from the outer edge of the foundation by meters, and the top layer protrudes by meters.
The tilt was first discovered in 1178.
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<>1. The soil layer under the foundation of the Leaning Tower of Pisa is formed by the sediment of various soft silt and very soft clay, and the place about one meter deep is the aquifer, and the Leaning Tower of Pisa is inclined because of the foundation as soon as it was built. The reason why the Tower of Pisa will be inclined is that the underground soil layer is more complex, not only is it divided into several layers by different materials of soil, but also these layers are mixed with various soft clay materials and sandy silt, and what is more disadvantageous is that the water level under the foundation is also very shallow, with a depth of only about 1 meter.
2. At the beginning, it was built to 4 floors, and people did not dare to build it anymore, for fear that it would fall before it was built, and it was not until 50 years later that the project was resumed again, and it was originally expected to build eight floors, and the floor where the bell was put was not added until 1350. Later additions, people in order to prevent the leaning tower from being too lacking filial piety tilt, are very troubled by this, they deliberately tilted in the opposite direction when they were added upwards, trying to "straighten" the center of gravity, in the measurement in 2007, it was found that the tower body was successfully straightened and pretended to be filial piety about 45 cm! Of course, in the constant debate about its formation.
3. The Leaning Tower of Pisa is 55 meters high from the ground to the top of the tower, the width of the bell tower wall on the ground is meters, the width of the tower wall at the top of the tower is meters, the total weight is about 14,453 tons, and the center of gravity is above the foundation. The circular foundation covers an area of 285 square meters and has an average pressure on the ground of 497 kPa. The angle of inclination deviates from the outer edge of the foundation by meters, and the top layer protrudes by meters.
The tilt was first discovered in 1178.
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The Leaning Tower of Pisa (Italian: Torre Pendente di Pisa or Torre di Pisa, English: Leaning Tower of Pisa) was built in August 1173 as a free-standing bell tower of the Cathedral of the city of Pisa, Italy, located in Piazza del Miracoli, north of the city of Pisa, in the province of Tuscany, Italy.
The large lawn of the Plaza de la Miracoli is dotted with a group of religious buildings: the Cathedral (built in 1063-13th century), the Baptistery (built in 1153-14th century), the bell tower (the Leaning Tower of Pisa) and the Necropolis (built in 1174). The Leaning Tower of Pisa is located behind the Cathedral of Pisa.
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The Leaning Tower of Pisa, a famous attraction in Italy, is because of the soft soil layer of the foundation, and the soil layer under the Leaning Tower of Pisa is composed of multiple layers of different special materials, which are formed by interspersing with various soft silt sediments and very soft clay, and at a depth of about one meter is the bottom water layer.
The Leaning Tower of Pisa, built in 1173, is a very famous independent white tower in Piazza Miracolia in the north of Pisa, Tuscany, Italy. The leaning tower is 55 meters long, but when it was built, it tilted at a turtle speed, one millimeter per year, and it is impossible to see it without looking closely. The reason why it has not fallen for so many years is because the height, inclination and soft soil and marble of the Leaning Tower of Pisa are necessary conditions for the construction of the Leaning Tower of Pisa.
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The Leaning Tower of Pisa was originally built as a free-standing bell tower for the Cathedral of the City of Pisa in Italy, and is now a local landmark building because of its tilt, and is a famous tourist attraction in Italy.
The Leaning Tower of Pisa (Italian: Torre Pendente di Pisa or Torre di Pisa, English: Leaning Tower of Pisa) was built in August 1173 as a free-standing bell tower of the Cathedral of the city of Pisa, Italy, located in Piazza del Miracoli, north of the city of Pisa, in the province of Tuscany, Italy.
The large lawns of the Piazza de l'Miracle are dotted with a group of religious buildings: the Cathedral (built in 1063-13th centuries), the Baptistery (built in 1153-14th centuries), the bell tower (the Leaning Tower of Pisa) and the cemetery (built in 1174).
The Leaning Tower of Pisa was built in 1173 by the famous architect Nano Pisano. It is located on the right behind the Romanesque Cathedral and is the symbol of the city of Pisa. At the beginning, the height of the tower was designed to be about 100 meters, but five or six years after the construction began, the tower began to slope from the third floor, and continued to slope until it was completed, and before it closed, the top of the tower was tilted south (i.e., the top of the tower deviated from the vertical line) meters. >>>More
The Leaning Tower of Pisa, Italy, was built in 1173 by the famous architect Nano Pisano. It is located on the right behind the Romanesque Cathedral and is the symbol of the city of Pisa. At the beginning, the height of the tower was designed to be about 100 meters, but five or six years after the construction began, the tower began to slope from the third floor, and continued to slope until it was completed, and before it closed, the top of the tower was tilted south (i.e., the top of the tower deviated from the vertical line) meters. >>>More
The Leaning Tower of Pisa (Italian: Torre Pendente di Pisa or Torre di Pisa, English: Leaning Tower of Pisa) was built in August 1173 as a free-standing bell tower of the Cathedral of the city of Pisa, Italy, located in Piazza del Miracoli, north of the city of Pisa, in the province of Tuscany, Italy. >>>More
Chinese name: Leaning Tower of Pisa English name: The Leaning Tower of Pis >>>More
Both objects are in free fall, and the landing time of the object obtained from h=1 2gt is only related to the gravitational acceleration g, but not to the mass of the object, so the two iron balls hit the ground at the same time. From a scientific point of view, the landing time has nothing to do with whether the ground is flat or not, physical research is based on an ideal state, if you have to investigate whether the ground is flat, it is meaningless to drill the tip of the horns. Hope it helps.