MATTER IN MOTION 



97 



that a body in the absence of other bodies moves 

 with a uniform velocity, may now be replaced 

 by the law that every path is a straight line 



B 



FiGUfiE 18 



Space-Time Map of Two Mutually Repellent Bodies 



except in the neighborhood of other paths. So 

 in the diagi-am the two paths approach straight 

 lines as they are farther removed from one an- 

 other. As the bodies approach one another their 



