The Light Course

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).

11 lectures, Stuttgart and Dornach, Dec. 23, 1919 - Aug. 8, 1921 (CW 320) "Now the time has actually arrived when...we have a subconscious glimmering of the impossibility of the modern approach to nature and some sense that things have to change."--Rudolf Steiner This course on light--also exploring 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." Rudolf 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. German source: Geisteswissenschaftliche impulse zur Entwikkelung der Physik, Erster Naturwissenschaftlicher Kurs: Licht, Farbe, Ton-Masse, Elektrizität, Magnetismus (GA 320).

Path of Light provides a fresh, superb, and penetrating overview of A Course in Miracles (ACIM), encompassing what it is, how it was written, what it teaches, and, most of all, how to live it. Veteran Course teacher, Robert Perry, has written this innovative exploration for the full spectrum of potential readers, from those who are simply curious about ACIM to those who are experienced students. Perry writes in a clear, straightforward fashion, and, like a storyteller, he uses simple words to relay the deep truth of the teachings of ACIM. More challenging than popular self-help summaries, yet more practical and engaging than a scholarly analysis, Path of Light will provide a new standard of reference on the most remarkable spiritual teaching originating in modern times. This is a skillful and elegant presentation from the warm heart and brilliant mind of one of the most respected teachers of A Course in Miracles. A softly illuminated portal that ushers us into the boundless room of light that is 'A Course in Miracles.' (Hugh Prather)

"Inner voice" of Helen Schucman, recorded by William Thetford.

This textbook is designed for graduate students in mathematics, physics, engineering, and computer science. Its purpose is to guide the reader in exploring contemporary approximation theory. The emphasis is on multi-variable approximation theory, i.e., the approximation of functions in several variables, as opposed to the classical theory of functions in one variable. Most of the topics in the book, heretofore accessible only through research papers, are treated here from the basics to the currently active research, often motivated by practical problems arising in diverse applications such as science, engineering, geophysics, and business and economics. Among these topics are projections, interpolation paradigms, positive definite functions, interpolation theorems of Schoenberg and Micchelli, tomography, artificial neural networks, wavelets, thin-plate splines, box splines, ridge functions, and convolutions. An important and valuable feature of the book is the bibliography of almost 600 items directing the reader to important books and research papers. There are 438 problems and exercises scattered through the book allowing the student reader to get a better understanding of the subject.

Stray light is defined as unwanted light in an optical system, a familiar concept for anyone who has taken a photograph with the sun in or near their camera's field of view. In a low-cost consumer camera, stray light may be only a minor annoyance, but in a space-based telescope, it can result in the loss of data worth millions of dollars. It is imperative that optical system designers understand its consequences on system performance and adapt the design process to control it. This book addresses stray light terminology, radiometry, and the physics of stray light mechanisms, such as surface roughness scatter and ghost reflections. The most-efficient ways of using stray light analysis software packages are included. The book also demonstrates how the basic principles are applied in the design, fabrication, and testing phases of optical system development.

This fourth volume of a four-volume textbook covers the oscillations of systems with one or more degrees of freedom; the concept of waves, focusing on light and sound; phase and group velocities, their physical meaning, and their measurement; diffraction and interference of light; polarization phenomena; and the formation of images in the eye and in optical instruments. The textbook as a whole covers electromagnetism, mechanics, fluids and thermodynamics, and waves and light, and is designed to reflect the typical syllabus during the first two years of a calculus-based university physics program. Throughout all four volumes, particular attention is paid to in-depth clarification of conceptual aspects, and to this end the historical roots of the principal concepts are traced. Emphasis is also consistently placed on the experimental basis of the concepts, highlighting the experimental nature of physics. Whenever feasible at the elementary level, concepts relevant to more advanced courses in quantum mechanics and atomic, solid state, nuclear, and particle physics are included. The textbook offers an ideal resource for physics students, lecturers and, last but not least, all those seeking a deeper understanding of the experimental basics of physics.

The exploration of the first billion years of the history of the Universe represents one of the great challenges of contemporary astrophysics. During this time, the first structures start to form the first stars, galaxies, and possibly also soon the first quasars. At the same time, light comes to the dark, neutral Universe. This book contains the worked out lectures given at the 36th Saas-Fee Advanced Course "First Light in the Universe" by three eminent scientists in the field.

Two leading spiritual psychologists offer a “life-changing book” that will help you awaken to your innate spiritual power and most authentic self (Jack Canfield, co-author of the Chicken Soup for the Soul) What if you discovered—not as a concept, but rather as a profound inner knowing born from the crucible of your own experience—that the essence of your very nature is, has always been, and always will be, the presence of love? That awareness would change everything. Your consciousness would be transformed, and you would move forward into a Soul-Centered life—your unique and beautiful life of meaning, purpose, and fulfillment. The book you hold in your hands is a vehicle for fostering just such an epiphany through the use of the empowering tools of Spiritual Psychology in your everyday life. As co-directors of the University of Santa Monica, the Worldwide Center for the Study and Practice of Spiritual Psychology, Drs. Ron and Mary Hulnick have had many years of experience in applying these principles and practices in their own lives as well as supporting thousands of students in doing the same. Their intention is nothing less than providing you with inspiration, practical tools, encouragement, and opportunities for learning how to live into the Spiritual Context—the awareness that you are a Soul and that your life serves spiritual purpose. As you read and engage with this book, you’ll learn practical ways for waking up more fully into the awareness of the loving being that you are. You will be remembering the Light within—remembering your essential nature. Can you imagine walking through this world in a consciousness that is Awake to Love? Wouldn’t that be amazing Grace? Opportunities for just such experiences are available to you, and this book will be your guide through this process.