Medium separating Electrified Particles, 



361 



of the different energy-cells is indicated by crosses along the 

 curves, at such points that, when the two particles come 

 together from an infinite distance apart, the cells move from 

 cross to cross in equal intervals of time. The same time is 

 taken in moving from the cross marked 10 to the origin. 



5. In fig. 2 the paths of the ( nergy-cells are shown when 

 two equal like particles repel one another. It will be noticed 



■Fig. 2. 



30 — : — -^p ki -l 'o 



— - 20 



35 (I-I2) 



that, as the particles move apart, the energy in each half of 

 the field follows the motion of the particle in that half, and 

 at the same time moves nearer to the central line. 



It is clear that the result will be that energy will flow from 

 the dielectric into the particle as it moves away, and being- 

 lost as potential energy will reappear as energy of motion. 

 Even when the particles are an infinite distance apart there 

 will still be a number of energy-cells in the aether, that is, the 

 particles will still possess potential energy. 



This is explained by supposing that every polarization tube 

 must begin and end somewhere. In this case we may sup- 

 pose that though A and B are an infinite distance apart, the 

 negative particle C is again an infinite distance beyond A, 

 and the negative particle D an infinite distance beyond B, so 

 that the tubes from A end in C, and those from B in D. 

 Then, after B and A have been repelled to a great distance 

 from one another and all the potential energy due to their 

 original nearness has been exhausted, there will still remain 

 the energy due to the separation of D from B and of A 

 from 0. 



