Rome is located in a valley, next to the two big volcano, the back is sa Battie Berton, the south is Albano hill, which today is dormant, but 600000 years ago are active volcanoes, like two full flame cauldron. In about 200000 years, the volcanic ash up to 1.5 meters thick, to cover the entire florida. Thousands of years past, volcanic ash hardens, formed today in Rome at the foot of the rock.
"these are the pickaxe leave traces, here is a Roman tunnel place, also is the Roman quarry place. This stone from volcanic ash composition, is a very durable material, it is suitable for the construction of buildings. These volcanic ash from the volcano near Rome." One person involved in the investigation of cave scientists say.
concrete is behind many of the Rome famous monument secret, it is the foundation of the ancient Colosseum, Roma Square and the building materials aurelian walls around the Rome mountains in the seven's also used it, volcanic ash to protect them >
concrete in Rome triggered a building on revolution. Now engineers can almost all want to build the building, such as Pantheon's monumental architecture, it is one of the most ambitious structure throughout Rome, but let it to a glorious culmination is its roof, it still is the world's largest unsupported concrete dome.
prototype are set up in the city, an ancient civilization city of shoulder, it is Rome. Two thousand years ago, it is the world's largest city, and then the Romans still standing today, how to do? To answer this question, we need the perspective of the city, revealing the secrets to construct it internal operation.
two thousand years, Rome is praised as the greatest empire of the world, because the use of engineering principles the genius of its construction, and it also be richly endowed by nature in geology. At present, a team consists of cave scientists team, ready to Rome city underground world to explore a. They entered a huge labyrinth of tunnels has two thousand years of history,<a href="http://www.wvldc.org/images/_vti_log/chanel-nihon-outlet-59.html">シャネルバック新作</a> http://www.wvldc.org/images/_vti_log/chanel-nihon-outlet-59.html, the ancient cave hidden in Rome engineers how to build the eternal city secret.
in these volcanic rocks deep, ancient engineers discovered a substance, it will change the world, this is the volcanic ash. The Romans found, if mixed with lime and water in volcanic ash, it will become very high strength mortar. Rome engineer with volcanic ash mixed out of the world's most durable concrete. Volcanic ash is very important for the expansion of Rome, because it is the land, which allows them to build so many buildings so quickly and easily.
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is the largest square in St. Peter's Square in Rome, Baroque style, can accommodate 50 million people,<a href="http://www.fancytransport.com/Images/moncler-men-outlet-181.html">モンクレール アウトレット</a> http://www.fancytransport.com/Images/moncler-men-outlet-181.html, is the see of Rome to engage in large-scale religious activities place. Square and on both sides of the colonnade designed by renowned architect and sculptor Bernini in 1656 design, for 11 years completed. (for
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