# Archimedes

Having lived around the third century BC, there are not many records of Archimedes’ life. What is known is that he was born in the year 287 BC in Sirucasa, a city-state in Eastern Greece at the time and what is now the region of Sicily, and that his father was an astronomer named Phidias.

As indicated by the few records of his life, Archimedes would have studied in Alexandria when he was young, where he would have met Euclid and was committed to seeking physical truths, mainly in the field of mechanics, where he developed great works of war engineering at the time.

Among some of the war works attributed to Archimedes is the idealization of the “burning mirrors”, which would have been used by the defenders of Sirucasa to burn Roman ships through the concentration of sunlight at a certain point.

The fact is narrated how the sage would have solved the problem of the number **π** , calculating its value through the first infinite sum that is known.

He was also credited with the famous phrase: “Give me a foothold and I will lift the Earth”, which referred to the lever principle he had established.

As a great geometer, she had the largest collection of flat figures with a perfectly determined center of mass known at the time.

The most legendary episode of his life is the day he walked the streets of Sirucasa naked, after solving the problem of how to weigh the measures of gold and silver in a crown, shouting: *Eureka! Eureka! *Which means: Found it! I found!

Much feared and admired by the Romans for his great weapons, he was eventually killed in an invasion of his city, in 212 BC, when, writing on the sand, he refused to obey a soldier who had ordered him to pass, saying he would not interrupt your reasoning.

At his request, a cylinder circumscribed to a sphere was engraved in his tomb, one of his favorite mathematical deductions, used to calculate the area of a spherical surface.