Table.  Average frequencies and periods of rhythms. 
      (The frequency of the alpha-rhythms has been accepted as equal to 10 
      Hertz)  
      
        
        
          
            | 
             Number  | 
            
             1  | 
            
             2  | 
            
             3  | 
            
             4  | 
            
             5  | 
            
             6  | 
            
             7  | 
            
             8  | 
            
             9  | 
            
             10  | 
            
             11  | 
            
             12  | 
            
             Average frequency, Hertz  | 
           
          
            | 
             Note  | 
            
             12.5  | 
            
             16.3  | 
            
             23.4  | 
            
             39.6  | 
            
             87  | 
            
             250  | 
            
             1840  | 
            
             31700  | 
            
             2.5x104  | 
            
             
            4.75x108  | 
            
             7.85x1012  | 
            
             8.1x1020  | 
            
             Growing frequencies  | 
           
          
            | 
             Infrasonic range  | 
              | 
              | 
            
             Ultra-sonic  | 
            
             Short 
            waves  | 
            
             Deci- 
            metric 
            waves  | 
            
             Milli- 
            metric 
            range  | 
            
             Light  | 
              | 
           
          
            |   | 
            
             Experimentally discovered  | 
            Experiment 
            is required | 
              | 
              | 
              | 
              | 
           
          
            |   | 
           
          
            | 
             Number  | 
            
             -1  | 
            
             -2  | 
            
             -3  | 
            
             -4  | 
            
             -5  | 
            
             -6  | 
            
             -7  | 
            
             -8  | 
            
             -9  | 
            
             -10  | 
            
             -11  | 
            
             -12  | 
              | 
           
          
            | 
             Average period, sec.  | 
            
             0.125  | 
            
             0.163  | 
            
             0.234  | 
            
             0.396  | 
            
             0.87  | 
            
             2.51  | 
            
             18.4  | 
            
             317  | 
            
             2.5x104  | 
            
             
            4.75x107  | 
            
             7.85x1011  | 
            
             8.1x1019  | 
            
             Growing periods  | 
           
          
            |   | 
            
             Fractions of a second  | 
            Second 
            range | 
            
             Minute 
            rhythm  | 
            
             8-hour 
            rhythm  | 
            
             1.713 
            years  | 
            
             2500 
            years  | 
            
             Without 
            physi- 
            ological 
            meaning  | 
              | 
           
          
            | 
             Experimentally discovered  | 
            
             Experiment is required  | 
           
         
        
       
       |