This is a non-mathematical overview of magnetism and the Earth's magnetic field, written for the 400th anniversary of William Gilbert's book "De Magnete". It includes discussions of electromagnetism, solar magnetism,...

This web page, authored and curated by David P. Stern, describes the causes of naturally occurring magnetite magnets, or 'lodestones.' It explains theories about the function of lightening and heat in such processes, and...

This web page, authored and curated by Dr. David P. Stern, provides an examination of Earth's magnetosphere and physical phenomena related to it. Subject matter includes the motion of charges in the Earth's magnetic...

This is a freely downloadable physics textbook exploring mechanics, thermodynamics, electromagnetism, special and general relativity, quantum theory, and modern unification attempts. The central theme is the importance...

This online textbook by Glenn Elert contains explanations, examples, and practice problems for many topics in introductory physics. These topics include Mechanics, Matter, Thermal Physics, Waves & Optics, Electricity &...