This is a free, online wikibook, so it is continually being updated and revised. It is a history of the life and accompliahments of Testa. According to the authors, "Tesla's legacy can be seen across modern civilization wherever electricity is used. Aside from his work on electromagnetism and engineering, Tesla is said to have contributed in varying degrees to the fields of robotics, ballistics, computer science, nuclear physics, and theoretical physics. Many of his achievements have been used, with some controversy, to support various pseudosciences, UFO theories, and New Age occultism. Many contemporary admirers of Tesla have deemed him the man who invented the twentieth century."