Basic ? on Einstein’s theory

[Vagabond -SC2-]

Ok perhaps not so basic but lets try and keep it short and sweet and then we can expand when I get "it"

 

I had some physics way back when and I am currently reading, Physics for the rest of us by Rodger S. Jones. It is a little old but I was hoping to get a good grasp on the theory.

 

So ok in Chapter 3 The General Theory of Relativity it states that the big E’s calculations and such say that we can do without gravity. I can follow long with this in the examples given but how motion explains how we fall to earth?

 

Ok the Earth is moving up at us? If so then how can to people on opposite sides fall to Earth?

 

Keep it simple I am still reading the book Just finishing chapter 3.

 

Thanks

 

Added (just remembered more specific question)

 

 

Ok let me expand or focus on the reference frame geometry.

 

 

Ok things that are traveling in a straight line may appear curved to us in our reference frame. But if the object is actually moving in a straight line how does it come back around, curving on us till it encircles us?

[sanctus]

I don't really understand your question...

do you get lost in the equivalence principle or that you can have a locally flat universe or...?

[Vagabond -SC2-]

Ok i was reading more and some of my confused thoughts are starting to clear up on the surface I will re-ask when I can better formulate the question.