Briefly reviews past endeavors at achieving international communication among scientists. Describes present accomplishments of the International Centre for Theoretical Physics. Makes appeals for scientific and technological development to the development countries, to the international community, and to representations of the OPEC countries. (CS)

Discussed is the physicists' impact on the revolution in the earth sciences particularly involving the overthrow of the fixist notions in geology. Topics discussed include the mobile earth, the route to plate tectonics, radiometric dating, the earth's magnetic field, ocean floor spreading plate boundaries, infiltration of physics into geology and…

Describes how physicists are zeroing in on a unified field theory. The contributions of particle physicists and a glossary for new particles are also presented. (HM)

Shows that von Neumann's mathematical theorem on composite systems acquires a transparent physical meaning with reference to a suitable physical example; a composite system in a state of definite angular momentum. Gives an outline of the theorem, and the results are restated in Dirac's notation, thus generalizing von Neumann's results which were…

Studies the elastic linear collision of three bodies of equal mass. One of the bodies is incident on the other two which are at rest and in contact with each other. (GA)

Discusses the contributions made by the field of quantum electrodynamics to the understanding of positroniums. (MLH)

The difference in time between the emission and reception of light is called the "lookback" time. This article explores implications of lookback time and explains some of the puzzling questions posed by the scientific observation of cosmic history. Provides several pictures and diagrams. (YP)

Discusses a new vision of scientific publishing that is emerging in the Physics community; it is based on three fundamental elements: (1) a preprint server, (2) an electronic peer-reviewed, edited journal, and (3) an electronic archive of past published papers. Relates problems with libraries and the American Physical Society as electronic…

Spacelab is a facility which enables scientists and engineers to go into space for in-orbit research studies. For the 10 European nations that designed, constructed, and financed Spacelab jointly through the European Space Agency and for the National Aeronautics and Space Administration, which designed, constructed, and financed the Spacelab…

Reports one student's reaction to an innovative course that presents concepts with a minimal amount of math, removes much scientific jargon, provides a historical perspective, and allows optional student involvement in research. (GS)

This amply illustrated booklet provides a physical description of the sun as well as present and future tasks for solar physics study. The first chapter, an introduction, describes the history of solar study, solar study in space, and the relevance of solar study. The second chapter describes the five heliographic domains including the interior,…

Presented is a descriptive account of Alessandro Volta's first notable success in 1775, the invention of a unique method of generating electricity. Luigi Galvani's announcement of his theory of "animal electricity" in 1972 is integrated into this interpretation of Volta's discoveries with electricity. Five experiments are described: (1)…

Presented is an evaluation of the Research Extended As Classroom Help (REACH) Kit. Developed by the University of Arkansas physics faculty, the REACH KIT is intended to bring current energy-related research results into college physics classrooms. The completed product consists of a package of instructional materials which contains a text, slides,…

Included are descriptions of activities of each of the 12 laboratories in the National Research Council of Canada, including background information and a summary of the studies (research) and results. The 12 laboratories in the NRCL are the following: Atlantic Regional Laboratory, Biochemistry Laboratory, Division of Biology, Division of Building…

Discusses recent advances in polarization techniques, specifically those dealing with polarization of atomic nuclei, and how polarized beams and targets are produced. These techniques have greatly increased the scope of possible studies, and provided the tools for testing fundamental symmetries and the spin dependence of nuclear forces. (GA)