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# Who Was Archimedes?

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by

## Hannah Ellis

on 9 January 2014

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#### Transcript of Who Was Archimedes?

Archimedes screw
Easily pumps water to higher levels,
The Archimedes screw was first used to pump water out of ships then was used for irrigation. The screw is still used in many regions of the world.
Just some Pics.
Arcmedes
Principle

Archimedes' principle indicates that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces. Archimedes' principle is a law of physics fundamental to fluid mechanics. He discovered this in the Bath.
Wait!!! He discovered this in the bath tub!
Hahaha!!!!
Fun-Fact
Archimedes
may have used
his theory to find
out if gold laurels
are less dense than
solid gold
Life as Archimedes
Archimedes was born 287 BC in seaport city Syracuse, Sicily.
when the years are
BC(before christ)
the smaller the
number, the later the
year.
Formula:
Buoyancy(a)=Bottom(b)-Top(t)
a=b-t
find t
12=52-t
52-12=t
40=t
lets try one...
20=b-12
the answer to the question was
b=32!
Archimedes
Who was
Archimedes spent most of his efforts on mathematics. he calculated areas and volumes and defined Pi.There are also a few other discoveries...two we will learn today!! :D
Great therome-The theory of the circle
Around 225 bc Archimedes produced a short
treatise titled Measurement of a Circle the first proposition of which gave a penetrating analysis of circular area. befor adressing this classic work however we first need to examine what was known about circular areas where he arrived appon the scene.
Geometers of the time would have known that regardless of the circle in questionthe ration of the circumference of a circle to its diameter is always the same
we would say c1/d1=c2/d2
c is the circumference and d ios the diameter or the circles. the ration of a circles circumference to its diameter is constant and modern modern mathmaticians define pi to be this ratio. c/d=pi or c=pi(d)
\(0o0)/
Bibliography
By: Hannah Ellis, Moriah Myers, Lauren Mowen
http:/en.wikipedia.org/wiki/Archimedes/