Henrietta Swan Leavitt they became an important part of the evidence that "spiral nebulae" are independent galaxies located far outside of our own Milky Way. Thus, Leavitt's discovery would forever change our picture of the universe, as it prompted Harlow Shapley to move our Sun from the center of the galaxy in the "Great Debate" and Edwin Hubble to move our galaxy from the center of the universe. Leavitt's discovery of a way to accurately measure distances on an inter-galactic scale, paved the way for modern astronomy's understanding of the structure and scale of the universe. The accomplishments of Edwin Hubble, the American
The Discovery of the Unconscious The philosopher Mikkel Borch-Jacobsen and the psychologist Sonu Shamdasani called the book a "monumental work". The Discovery of the Unconscious The Discovery of the Unconscious: The History and Evolution of Dynamic Psychiatry is a 1970 book by the Swiss medical historian Henri F. Ellenberger. In this study of the history of dynamic psychiatry, Ellenberger provides an account of the early history of psychology covering such figures as Franz Anton Mesmer, Sigmund Freud, Carl Jung, Alfred Adler, and Pierre Janet. The work has become a classic, and has been credited with demolishing the myth of Freud's originality and encouraging scholars to