1. ARCHIMEDES
By Beatriz Martínez Rodríguez, 1º C ESO

2. Index
 Biography
 Hydrostatics
 Principle of levers
 Hydraulic Screw
 Conclusion

3. Biography
Archimedes was born
in Syracuse in 287 B.C.
He spent most of his life there except
for the time he went to Alexandria to
study because this was important for
his family.

4. Biography
 He got the opportunity to continued his studies in a
famous school of Mathematics. Archimedes grew up
to be a great scientist.
 He made great discoveries in Geometry, Mechanics,
and established the Sciences of Statics and
Hydrostatics.
 He formulated a law of Fluid Displacement
(Archimedes' principle), and is credited with the
invention of the Archimedes screw, a cylindrical pump
for raising water.

5. Hydrostatics
 King Hiero decided to order a golden crown but he
heard that the crown wasn’t made of gold and silver.
Hiero trusted his cousin Archimedes to prove it.
 Archimedes accepted the mission and he discovered
the solution. He started shouting
`Eureka, Eureka`, and he ran without clothes on.

6. Hydrostatics
 He realized that the amount of water that overflowed
the tub was the same as the amount of his body, which
was submerged.
 That’s how he demonstrated that the crown was not
made of gold only because
the volume of this crown
displaced more water than
the gold crown.

7. Principle of levers
 The principle of lever permitted to elevate objects that
were too heavy to transport.
 While Archimedes did not invent the lever, he
discovered how it worked. He said, “Give me a place to
stand on, and I will move the Earth”.

8. Principle of levers
 Example: A block and tackle system, consists of two or
more pulleys with a rope between them, it is usually
used to lift heavy loads.
 This was very useful in moving boats or ships to the
ground.

9. Hydraulic Screw
•Archimedes' screw, is a
machine used for
transferring water from a
low zone to a more
elevated zone.
 In ancient times it was used
in crops for raising water.

10. CONCLUSIONS
 He died in 212 BC.
 He was one of the Great Mathematicians in Human
History. His enormous achievements are still useful
twenty centuries later.