Introduction to the Theory of Relativity Part I: History. This is the first of a series of elementary, informal, and almost equation-free articles descibing the Theory of Relativity in physics. The series will have four installments: Part I: HistoryThis describes the history of ideas in the development of relativity. Part II: Special RelativityThis will describe Einstein's Special Theory of Relativity. Part III: General RelativityThis will give at least a taste of Einstein's General Theory of Relativity, which extends the Special Theory to cases involving acceleration and gravity. Part IV: Implications, Controversies, and MiscellanyThis will address implications of the Theory of Relativity, controversies both old modern, and anything else that isn't covered in the first three installments. [kuro5hin.org]
