2. My person was born in Syracuse, Sicily. My person discovered relation between surface and volume sphere & its circumscribing cylinder formula hydrostatic principle. He discovered fundamental theorems concerning the center of gravity of plane figures and solids. He invented pulley systems and war machines for Syracuse. He is known as one of the three greatest mathematicians ever. He died in 211 B.C.

3. He invented pulley systems and war machines for Syracuse. My person discovered relation between surface and volume sphere & its circumscribing cylinder formula hydrostatic principle. He is known as one of the three greatest mathematicians ever. He discovered fundamental theorems concerning the center of gravity of plane figures and solids. He died in 211 B.C.

4. My person discovered relation between surface and volume sphere & its circumscribing cylinder formula hydrostatic principle. He invented pulley systems and war machines for Syracuse. He is known as one of the three greatest mathematicians ever. He discovered fundamental theorems concerning the center of gravity of plane figures and solids.

5. My person discovered relation between surface and volume sphere & its circumscribing cylinder formula hydrostatic principle. He is known as one of the three greatest mathematicians ever. He discovered fundamental theorems concerning the center of gravity of plane figures and solids.

6. My person discovered relation between surface and volume sphere & its circumscribing cylinder formula hydrostatic principle. He is known as one of the three greatest mathematicians ever.

7. My person discovered relation between surface and volume sphere & its circumscribing cylinder formula hydrostatic principle.