Can Gravity Really Repel? Understanding Gravitons and Common Misconceptions

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    Gravity Repel
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Abbas Sherif said:
If you feel mine is a speculation and its unfounded,look for the book, Physics for Scientist and Engineers by Paul A. Tipler and read on the chapter, evolution of the universe and about the lepton era. Be good guy
Why? Does it introduce observational evidence that the rest of the world is unaware of, that supports the proposed theory?

Or is it just postulating a speculation that is not founded upon evidence?
 
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lets not forget the theory of gravitons.
for those who don't know some scientist's believe that there are particles no charge, no mass, and carry energy/gravitational energy, this is almost identical to photons, particles that have no mass or charge but they carry electromagnetic energy,