# Archimedes

### By: Britiney A. 8B

Archimedes is a greek inventor, engineer, physicist, mathematician famous for his theorem Pi. He was born in Syracuse, Italy in 287 BC. His father is Phidias who is a famous greek sculptor, painter, architect, and astronomer. He died 212 BC.

(Pictures of him bellow)

## Discoveries/Inventions

Antikythera Mechanism- a ancient analog computer designed to predict astronomical positions and eclipses, and the cycles of Olympic Games. (1st Photo)

Archimedes' Screw- a machine used to transfer water from a low-lying body of water into irrigation ditches. (2nd Photo)

## Theorem: Pi

Math words: Definition in math terms: Pi, or p, is a mathematical constant, equal to about 3.14 (but with a gajillion digits after). It’s a fixed ratio of the circumference and diameter of any circle. Pi is an irrational number, which means it can’t be expressed as a fraction of two whole numbers.

My Words: Pi is the ratio of a circular object. The equation is the circumference divided by the diameter. You can measure a lid of a container first you measure the circumference of the circle. Next you measure the diameter. Then you divide the circumference by the diameter.

## Pi used in the world today

Pi is used in engineering, and architecture. In engineering pi is used to construct the components, and control the moving parts in a machine. Pi is a very important part of architecture in help building the things we have today. It also helps with the construction of buildings, and bridges.
Archimedes Biography