XPost: sci.electronics.design   
   From: PointedEars@web.de   
      
   Phil Hobbs wrote:   
   > john larkin  wrote:   
   >> The gamma rays had no gravitational effect on the rest of the mass in   
   >> the universe, up until the instant that they collided to form a   
   >> particle pair. Then a gravitational object magically appeared.   
   >   
   > The gammas together had the same mass as the particle pair.   
      
   No, they had the same _energy_ even though their mass was _zero_.   
      
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