introduction

Firstly - let me state categorically that I am not 'into' grid-lines, force lines, energy grids, i.e., I am not interested any of the more 'exotic' aspects of earth electricity.   If you have come here for that then you will be very disappointed.

Instead you will find here conventional techniques and ideas associated with the large electric currents that flow through the Earth's crust.

In particular - while performing some experiments related to other areas of interest (ULF, ELF and VLF) using two groups of three earth electrodes, I came across something that intrigued me.   I found, in addition to signals at those frequencies (ULF, ELF and VLF) , a slow-varying voltage between the electrodes of a much longer period.

These pages largely deal with that slow-varying voltage found to exist between the electrodes.