A Universe of Questions.

Takao

The Witness Hypothesis questions "the existence of time without observers." Can we truly say that "past events" like the beginning of the universe—which no one witnessed—really happened? Starting from this simple question, it asks whether Block Universe theory can claim completeness while the scope of "everything already exists" remains ambiguous. The time of stones, the past of rivers, the beginning of a universe without observers—do they "exist," or are they "treated as non-existent"? This hypothesis stands at that boundary, gently offering a question to which no one has an answer. Keywords: Observation Problem, Block Universe Theory, Ontology of Time, Philosophy, Interpretation of Quantum Mechanics

R. Shankar

Swee Cheng Lim, Choy Heng Lai, L. C. Kwek

This volume is a comprehensive compilation of carefully selected questions at the PhD qualifying exam level, including many actual questions from Columbia University, University of Chicago, MIT, State University of New York at Buffalo, Princeton University, University of Wisconsin and the University of California at Berkeley over a twenty-year period. Topics covered in this book include the basic principles of quantum phenomena, particles in potentials, motion in electromagnetic fields, perturbation theory and scattering theory, among many others.

David Pogue

John Hodge

The “plenum” in the Scalar Theory of Everything (STOE) is the component of the universe that is a continuous medium that interacts with matter particles. Because a medium is not directly detected in instruments, the question of its reality is controversial. This is linked with the question of whether quantum waves are real waves in the plenum or merely probability waves. The experiment to demonstrate the reality of the plenum as a component of the universe has been done. The conclusion is that the plenum is a real component of the universe.