Describes a simple water channel, for use with an overhead projector. It is run from a water tap and may be used for flow visualization experiments, including the effect of streamlining and elementary building aerodynamics. (MLH)

Presents a method for describing the electromagnetic field within a wave guide which permits the application of the formalism of quantum mechanics. (SL)

Presents a model describing the vibrations of a mass connected to fixed supports by "ideal" Hooke's law springs which may serve as a starting point in the study of the properties of irons in a crystal undergoing soft mode activated transition. (SL)

Presents an operator which transforms quantum functions to solve problems of the stationary state wave functions for a particle and the motion and spreading of a Gaussian wave packet in uniform gravitational fields. (SL)

Analyzes the physical explanation accounting for tendency of Laboratory spring-mass oscillators to swing sideways. (SL)

Presents a completely arithmetic development of Newtonian dynamics in which all classical conservation laws are valid and all equations are in forms amenable to high-speed digital computer computation. (SL)

The three possible fates of burned-out stars: white dwarfs, neutron stars and black holes, are described in elementary terms. Characteristics of these celestial bodies, as provided by Einstein's work, are described. (CP)

Discusses the determination of the wavelengths for color-center absorption from a simple quantum mechanical model consisting of an electron trapped in a square finite-potential well. (SL)

Describes a freshman physics laboratory experiment for approximating the mean free path in high density gases by measuring the mean free path of hockey pucks on an air table. (SL)

Discusses the problem of determining the number of radioactive particles entering a detector window from a parallel and coaxial disk source. (SL)

Discusses the simultaneous discovery of the four-factor formula in various countries, the influence of secrecy in preventing the sharing of discovery, and the resultant direction in the development of nuclear reactor theory. (SL)

Describes an experiment for studying the dynamics of a soft spring. (SL)

Presents a solution to coupled photon and electron wave equations in relativistic quantum mechanics; both provide correct results for a given scattering process. (SL)

Reviews the history of pulsars generally and the 1974 discovery of the binary pulsar by Joe Taylor and Russell Hulse specifically. Details the data collection and analysis used by Taylor and Hulse. Uses this discussion as support for Albert Einstein's theory of gravitational waves. (CW)

Described is a microcomputer software program NUCLEAR REACTIONS designed for college level students and in use at Sweet Briar College (Sweet Briar, VA). The program is written in Microsoft Basic Version 2.1 for the Apple Macintosh Microcomputer. It introduces two conservation principles: (1) conservation of charge; and (2) conservation of nucleon…