The Life of Archimedes
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Archimedes, considered on of the greatest minds of the ancient world was born on the island of Sicily in the Greek city of Syracuse in the year 287 B.C.. Syracuse at the time was an independent Greek city-state with a 500-year history. He was the son of Phidias who was a Greek Astronomer and Mathematician. All that we know about Archimedes comes from his existing manuscripts, and from ancient historians such as Plutarch and Cicero among others centuries after his death. Considering the length of time between Archimedes death and the historians accounts, along with the nonuniformity of their writings, some details of his life have to be subject to question. For example, Plutarch has been stated saying that Archimedes was related to King Hieron II, but Cicero had claimed that he was of a low birth. It was also reported that he would become so engrossed in his thoughts that he would forget to eat or bathe making his grooming habits more to be desired.
It is believed that his early schooling came from Syracuse, then traveled to study with the Egyptian mathematician and astronomer Conon in the city of Alexandria. Archimedes had become close friends with Conon and also Eratosthenes, the custodian of the Alexandrian library. Long after completing his studies and returning to Syracuse he continued his correspondence with both of them about his different mathematical and scientific discoveries.
The contributions of Archimedes to mathematical knowledge are abundant setting force principles of plane and solid geometry. Only three of his treatises on plane geometry have survived, these are; Measurement of a Circle, Quadrature of a Parabola, and On the Sphere and Cylinder. In his book Measurement of a Circle Archimedes shows that the ratio between the circumference of a circle and its diameter can be calculated as he calls it the method for calculating Pi. He correctly determined that the value of Pi is somewhere between 3.1408 and 3.1428. Along the same plane he determined that a circles area could be determined by using the formula PI( r^2 ).
In the book On the Sphere and Cylinder Archimedes dealt with the topic of solid geometry contains several famous discoveries, including his theory that the volume of a sphere is equal to 4/3Pi( r^3). He also showed in his work that as long as the cylinders height and width is equal to the spheres diameter, and the volume of the sphere will be 2/3 the volume of the cylinder surrounding it. He was so proud of this discovery that he had the symbol etched into his tombstone.
Quadrature of a Parabola discusses a refined version of the method of exhaustion which was originally developed by the Egyptians. Archimedes developed the technique for determining the area under a curve, which is elaborated about in a later volume, The Method. In the book The Method it shows that Archimedes has theorized the development of integral calculus by two thousand years.
Of the several essays that Archimedes has written The Sand Reckoning is the only one that remains. The essay proposed the problem of determining the number of grains of sand in the universe, containing a special notation for estimating and expressing very large numbers. The numerical system he uses is based on units of 10,000, because in ancient Greece 10,000 was the largest number they thought they needed to work with. The ancient Greeks use the word “myriad” to express the biggest number word, where the words million, billion, etc. didnt even exist. Archimedes also invented the mathematical puzzle called the Cattle Problem, where one had to determine the number of bulls and cows of different colors, given that the color of the cattle was in a particular ratio to the others. Along with the infinite number of possible solutions to the problem this one was especially challenging to the Greek who had no knowledge of algebra.
Archimedes established fundamental rules of mechanics and many different devices used in everyday life as well as machines to aid in the war against Rome. For one of his discoveries Archimedes was called upon by King Hieron to find out if the crown the king just had made was of pure gold. The king had a suspicion the goldsmith had substituted some other metal for some of the gold. As Archimedes was taking a bath one day he noticed that the more he moved into the tub the more the water was displaced and running over the edge. This led him to believe that items of different mass would put a different amount of water out of the tub. Excited about his discovery it