1) Geophysical science 2) Geophysics 3) Magnetism 
study of magnetism
• (n.) The science of magnetism.
An understanding of the interrelationship between magnetism in the traditional sense, and the electro-magnetic energy fields of the human body, in relation to electro-magnetic energy elsewhere in the environment. By using this understanding and applying various techniques and practices, one can influence the energy fields of the body in such a way…...
Mag·net'ics noun The science of magnetism.