;U() Kunz — Electromagnetic Emission Theory of Light. 



sliould be continued by experiment, we eoukl hardly consider 

 the result as a demonstration of the principle of relativity. 

 The radius of an electron carryina; a tube of force in one 

 direction is much lar<);er than the radius calculated on the 

 assum|)tion of a uniform di.-tril)ution of the electric field 

 around the electron. The effects produced when a moving 

 electron is suddenly l)rought to rest, or when its motion is 

 accelerated, are very similar to those calculated on the usual 

 assumptions. 



Of course, it is possible that there are a very large though 

 finite number of Faraday tulles attached to the electrons, so 

 that the electric field is finally little different from what we 

 consider at present, and then we should in the limiting case 

 have the same properties as we find in the xisual electromag- 

 netic wave theory of light. The great problem is to determine 

 whether there is such a limit or a discontinuity in the space of 

 an electric field. The theory of thermal radiation can be 

 developed very nearly in the same way, as it is now, if we 



Fig. 1. 



if 



M 



assume that the field of an electron is spreading out from a 

 center in one or in several directions, so that the change 

 involved in the present theory of radiation would be very 

 slight. 



On the other hand, the explanation of the optical phenomena 

 of aberration, of the Airy, Fizeau and Michelson-Morley exper- 

 iment, would be very simple. 



The theory under consideration makes an independent 

 medium like ether unnecessary ; it has features of the emission 

 theory in comnion with tiie wave theory. The Faraday tubes 



