PengKuan’s work On Relativity

Trajectory of Oumuamua and wandering Sun, alien asteroids and comets detected by SOHO

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What is the thickness of the event horizon of a black hole

 

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Radius of a black hole for relativity and Newtonian mechanics

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General equation for Space-Time geodesics and orbit equation in relativistic gravity (equation layout)

 

Relativistic dynamics: force, mass, kinetic energy, gravitation and dark matter

 

How galaxies make their rotation curves flat and what about dark matter