Copyright © Klaus Piontzik  
German Version 
According to Chapter 2.4 the fundamental frequency of an oscillation structure is: 
The fundamental frequency (n = 1) for an oscillation structure is: 
The following values were used for the variable R, c
c = 299792458 m/s as speed of light The WGS84 is a global geodetic reference system, that determine the basis of positions on the ground, and in the near earth space. The WGS84 delivers two earth radii: Polar radius: 6356752 m Equator radius: 6378137 m There are two radii, thus also two frequencies: 
n  Polar radius  Equator radius 
1  11.7903 Hz  11.7508 Hz 
2  16.6740 Hz  16.6181 Hz 
3  23.5806 Hz  23.5016 Hz 
3.0.1  Theorem:  The basic frequency of the Earth is about 11.7 Hz f_{o} = 11.75 – 11.79 Hz 
200 sides, 23 of them in color 154 pictures 38 tables Production und Publishing: ISBN 9783735738547 Price: 25 Euro 
