Question: since isaac newton (1642-1727) around 1660 discovered the mathematical laws for gravitational forces between two symmetrical, ball shaped bodies, scientists have tried to find a physical-mechanical cause for the gravitational effects.
Answer: --> Since Isaac Newton (1642-1727) around 1660 discovered the mathematical laws for gravitational forces between two symmetrical, ball shaped bodies, scientists have tried to find a physical-mechanical cause for the gravitational effects.

Question: they argued that instead of the new os being more accessible and easy to use, it had become more cumbersome and draining on our computer's architecture.
Answer: --> They argued that instead of the new OS being more accessible and easy to use, it had become more cumbersome and draining on our computer's architecture.

Question: (written in the period may - june 2008. gradually added others, also in other pages, and in 2011 is already possible to argue that such phenomena it is possible to explain completely all of them)
Answer:
--> (Written in the period May - June 2008. Gradually added others, also in other pages, and in 2011 is already possible to argue that such phenomena it is possible to explain completely all of them)