"The time variation of components of the Earth’s magnetic field vector, which is registered by specialized equipment, is called a/the geomagnetic signal".
I'd like to ask you the following question: when we are introducing a term which article do we use? In the sentence above I think itv should be "the". If I'm mistaken, please correct me.
milan, you have been a member long enough to know that a better title would have been a/the geomagnetic signal, and for your earlier thread, a/the direction.
Ok, Rover, next time I'll try to be more careful with titles.