need help with discussion topic

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This weeks discussion topic is about early mathematicians and physicist that developed formulas and theorems widely used in statics. Pick one of the early mathematicians/physicist listed below and post a brief one paragraph summary of their major work/invention and country of origin. In your posting include any sources/references used.

1. Archimedes 4. Albert Einstein 7. Otto Mohr 10. James Prescott Joule

2. Galileo Galilei 5. Pythagoras 8. Charles-Augustin de Coulomb

3. Isacc Newton 6. Blaise Pascal 9. Paul Guldin or Guldinus