212 THE NEW QUANTUM THEORY 



readily be understood that if we are to reduce all phe- 

 nomena to a propagation of waves, then the influence 

 of a body on phenomena in its neighbourhood (com- 

 monly described as the field of force caused by its 

 presence) must consist in a modification of the propa- 

 gation of waves in the region surrounding it. 



We have to connect these phenomena in the sub- 

 aether with phenomena in the plane of our gross ex- 

 perience. As already stated, a local stormy region is 

 detected by us as a particle; to this we now add that the 

 frequency (number of oscillations per second) of the 

 waves constituting the disturbance is recognised by us 

 as the energy of the particle. We shall presently try to 

 explain how the period manages to manifest itself to us 

 in this curiously camouflaged way; but however it comes 

 about, the recognition of a frequency in the sub-aether 

 as an energy in gross experience gives at once the con- 

 stant relation between period and energy which we have 

 called the h rule. 



Generally the oscillations in the sub-aether are too 

 rapid for us to detect directly; their frequency reaches 

 the plane of ordinary experience by affecting the speed 

 of propagation, because the speed depends (as already 

 stated) on the wave-length or frequency. Calling the 

 frequency v, the equation expressing the law of propa- 

 gation of the ripples will contain a term in v. There will 

 be another term expressing the modification caused by 

 the "field of force" emanating from the bodies present 

 in the neighbourhood. This can be treated as a kind of 

 spurious v, since it emerges into our gross experience 

 by the same method that v does. If v produces those 

 phenomena which make us recognise it as energy, the 

 spurious v will produce similar phenomena correspond- 

 ing to a spurious kind of energy. Clearly the latter will 



