Develops a theory of gravitation which is a natural extension of the Newtonian theory. It is compatible with special relativity and with all present-day observations. It requires only elementary mathematics and can be taught in a junior level mechanics course. (Author/MLH)

Describes thermonuclear processes induced by interaction of a laser beam with the surface of a fuel pellet. An expanding plasma is formed which results in compression of the element. Laser and reactor technology are discussed. Pictures and diagrams are included. (GH)

This publication is one of a series of information booklets for the general public published by the United States Atomic Energy Commission. Among the topics discussed are: Why Use Nuclear Power?; From Atoms to Electricity; Reactor Types; Typical Plant Design Features; The Cost of Nuclear Power; Plants in the United States; Developments in Foreign…

This publication is one of a series of information booklets for the general public published by the United States Atomic Energy Commission. Among the topics discussed are: How Reactors Work; Reactor Design; Research, Teaching, and Materials Testing; Reactors (Research, Teaching and Materials); Production Reactors; Reactors for Electric Power…

Presents a theory about the origin of the elements and the evolution of the stars. Relates the nucleosynthesis of nuclides to stellar evolution. (GS)

A broad definition of solitons and a discussion of their role in physics is given. Vortices and magnetic monopoles which are examples of topological solitons in two and three spatial dimensions are described in some detail. (BB)

Explains and illustrates strange events which occur when two pendulums interact through a variety of interconnections. Phenomena addressed include: pendulums coupled by a spring, rod, or string; vertical and rotational oscillations, and synchronous and mirror-image swinging. A resonant-spring pendulum and a Wilberforce pendulum are also discussed.…

Provides a qualitative discussion on the force of a charged particle on itself. Areas addressed include: (1) time delay effects; (2) accelerating spherical charge; and (3) radiation resistance. (JN)

The question, Is the force on an object in circular motion centrifugal or centripetal?'' is discussed. (DF)

Although many experiments to detect gravity waves are underway, and others are planned, so far none of them has reproduced Joseph Weber's results, first reported in 1967. (Author/DF)

There were no differences in the understanding of physical optics and ability to solve physical optics problems after instruction or on a delayed test between students with or without prior instruction in wave motion. (AL)