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Created with Fabric.js 1.4.5 Roman technologies "All roads lead to rome." "I came, I saw, I conquered." Why do you speak to me of the stones? It is only the arch that matters to me. The exact origin of arches is unknown. Some research indicates that it was an Etrucian invention, but other reasearch indicates arches may have been invented in Sicily. The only thing we know for sure is that they were first widely used in the Roman empire.Roman arches played a big role in Roman architecture. The construction of many big buildings in the Roman Empire such as the Colosseum would not have been possible without arches. Arches enabled the Roman empire to build large buildings such as temples and aqueducts. Arches are still widely used in our current world, such as in bridges. Todays arches are of different design than Roman arches, however both use the same principle. The Roman ballista was a weapon that was based on a previous Greek design, however significantly improved in its performance by the Romans. The Roman ballista was one of the main weapons behind the success of the Roman army. It was originally a fixed-position weapon and not very practical, due to its big size and heavy weight. It could fire stones and bolts ranging from 5 kg to 25 kg in weight. It was used as a long-range weapon and was very feared by opposing forces. The Romans also had a smaller version of the ballista called the 'scorpio' that was a one-man operated weapon and a lot more practical. The modern day equivalent of the ballista is the crossbow, which is a lot smaller, however still uses the same principle as the Roman ballista. Roman roads Roman ballista ModernAncient Roman Modern CrossbowAncient Bastilla Roman roads were one of the backbones of the Roman Empire's projection of power over a vast expanse of territory. In its time, it was the up until then most sophisticated network of roads that humanity had ever seen. Without such sophisticated network of roads, the Roman Empire would not have been able to conquer as much land as it did. This is because they would not have be able to transport the goods, military and people around as effectively. At its peak, there were more than 80,000 km of roads in the Roman Empire. One key innovation that contributed to the success of the Roman road design was a materiel never used before: Roman concrete. Roman concrete contained only 4 ingredients: limestone, sand, water and volcano ashes. When you combine these ingredients in a certain way, it makes a very hard, rock-like materiel useful for building structures and roads. It also has many other positive attributes such as resistance to frost, sunlight etc. Romans built their roads by using multiple materials and using multiple layers for strength. You can see a diagram of this below.Roman roads have many similarities to the roads that we are built today as they both are highest in the middle and then slope down to the sides to let rain water drain out. Also, both use compacted sand for a foundation. Roman arches
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