Book excerpt: 11 lectures, Stuttgart and Dornach, Dec. 23, 1919 - Aug. 8, 1921 (CW 320) Rudolf Steiner's course on light, which includes explorations of color, sound, mass, electricity and magnetism, presages the dawn of a new worldview in the natural sciences that will stand our notion of the physical world on its head. This "first course" in natural science, given to the teachers of the new Stuttgart Waldorf school as an inspiration for developing the physics curriculum, is based on Goethe's phenomenological approach to the study of nature. Acknowledging that modern physicists had come to regard Goethe's ideas on physics as a "kind of nonsense," Steiner contrasts the traditional scientific approach, which treats phenomena as evidence of "natural laws," with Goethean science, which rejects the idea of an abstract law behind natural phenomena and instead seeks to be a "rational description of nature." Steiner then corrects the mechanistic reductionism practiced by scientific positivists, emphasizing instead the validity of human experience and pointing toward a revolution in scientific paradigms that would reclaim ground for the subject--the human being--in the study of nature. READ BOBBY MATHERNE'S REVIEW OF THIS BOOK German source: Geisteswissenschaftliche impulse zur Entwikkelung der Physik, Erster Naturwissenschaftlicher Kurs: Licht, Farbe, Ton-Masse, Elektrizität, Magnetismus (GA 320).