jueves, 21 de abril de 2016

Technology in Ancient Civilizations: the Greek




Technology in Ancient Civilizations: 
the Greek

The Minoan Civilization grew up on the island of Crete pre-dated the Greek. In 2600 BC people on Crete were working with bronze and gold. 2000 BC they developed system of writing. And by 1700 – 1450 BC they reached their height and dominated Aegan area. They were seafaring traders, exporting wines, honey and olive oil in Egypt, Asia Minor and Syria. They built magnificent palace at Knossos a small city. By 1450 BC the civilization declined due to earthquake and volcanic that from mainland invaded Crete. The Mycenaean Civilization took it’s place and were the first reminiscent of The Ancient Greek[1] which were surely one of the most influential civilizations in history. Hellenistic civilization spread towards the Middle East with the conquests of Alexander the Great over the Middle East and far into Asia after his death in 323 BC. All in all, the Greek spread from 1700 - 300 BC. They were a seafaring people: they traded with other countries around the Mediterranean. Their cities were founded around the Black Sea, North Africa, Italy, France and Spain. Architecture, philosophy, literature, you name it!!! Poets, Mathematician, Architects, and Philosophers founded a culture that we are still identified with. Ancient Greek philosophy focused on the role of reason and inquiry, and had great implicancies on modern philosophy. The main influencers were Plato and Socrates. They introduced us to many ideas like democracy. The Greek lived in city states, which consisted of a city and it’s surrounding area. These featured some sort of slavery and citizenship was limited to males.
Consider our picture of the Greek: the philosophers. However, in the city of Athens, between 40% and 80% of the population were slaves. Not everyone in Greece could enjoy a life of freedom and full-right citizen, this being more the exception than the norm. Only free, land owning, native-born men could be citizens and were entitled to the full protection of the law. The slaves[2] or duolia were mainly used to work in agriculture or in mines, and were paid for their services. They were not allowed to participate in politics, this being a privilege reserved to the citizens. Education was wide spread, and Greek was a widespread language. Homer wove ancient tales of gods and heroes into epic poetry. Some of his work included the Iliad and Odyssey. The Acropolis was in ancient times the political and religious center of the city. It was where philosophy was debated, and government conducted. Religion occupied a central role in Greek tradition. They prayed to the twelve Olympians, Zeus being their God.
The Greek were the most advanced preindustrial economies in the world. The most common jobs were politicians, generals, secretaries, clerks, accountants, blacksmiths, scientists, carpenters, masons, metalsmiths and shipbuilders. Transportation was carried on by ship and mule. They handled perfumes, copper, ivory, gold, carpet, olive oil, silver, tin, slaves, timber and fish. Large-Scale Farming was not possible. There were city-states because the land was divided by mountains. Greece was not yet unified as a country. Since they were surrounded by water, they created a large naval force. There were many fisherman and they could trade easier with other countries because they were close to the sea.
Their technology was very developed. They were brilliant astronomers, and had discovered that the Earth was round. They used hand-held plows fitted with iron blades, they were pulled by oxen or mules. They used hydraulic cylinders, pumps, machine tools, gears and even some bases of computer sciences: the letters of their messages could be coded in two bits. They loved art, beauty, music theater and poetry. They studied the physical laws that govern music, investigating around and studying harmony. Let us see some example of their technological advances[3]:
  1. Robots: Philo built an automation where birds were singing near an owl, but stopped as soon as the owl periodically turned to them. A robot-servant poured wine first, then water, and stopped when you withdrew your cup. The first vending machine gave the visitor a measure of holy water when he inserted a coin.
  2. Entertainment: automatic theaters were created, with self-opening doors. Stage machinery added special effects like the descent of characters from the sky, scenery changes and movable carts.
  3. Musical instruments: music was a major art. They had organs, wind, string and percussion instruments. Pythagoras and Ptolemy defined the rules of musical harmony, scales and pitches.
  4. Technology in everyday life: they used different types of cranes, pulleys, winches and capstan hoists, block and tackle systems. They had water mills but also used a special type with an horizontal turbine, suited for fast flows of small rivers. As weapons, they invented siege engines throwing arrows (catapults) and balls. The repeater crossbow was the first machine gun! The designed a steam canon, and their siege towers were 9 floors tall. Their heavy merchant ships were turned into fine and fast galleys. To measure time, they devised small portable sundials which could work under 4 different latitudes, or the water clock, which worked as well as an alarm clock.
  5. Technology applied to science: problems were solved by using rulers and compasses, but when this did not work they built devices to seek solutions. The “Antikythera Mechanism” was the first astronomical analog computer in the world. Astronomical observation instruments were created to record the precise position of the stars. The circumference of the Earth was calculated by Eratosthenes with less than 2% error of margin. Hipparchus discovered that the Sun was much larger than the Earth. However, they believed that the planets and the Sun orbited around the Earth, and not the opposite. This was only challenged 1500 years later.
They also built great aqueducts, like the Tunnel of Eupalinos[4]. And Hippocrates[5] is considered the Father of Western Medicine. Ancient Greece can be considered the birth place of Western Civilization. For over 1000 years the Greek devised the most advanced technological feats the world had ever seen. They were also prone to war and conquest. They were thinkers, creators, innovators. In the end, they would be absorbed by the Roman Empire, who built and thrive upon Greek culture. They took their architectural design and creations and built upon them. We will get to that later.

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