Explains that the use of symbols in some textbooks to represent both physical quantitites and numerical measures is illogical and confusing. (GA)

Lists several ideas for experiments for the amateur scientist to try or design. The list covers a wide range of topics; sound, mechanics, thermodynamics, fluids, optics, and electrostatics. (GA)

Explains how the spherical pendulum could be used to observe nonreentrant orbits, and shows, using theoretical analysis, that for small displacements the elliptical orbit will precess at a rate proportional to its area. (GA)

Explains that the larger value of g at the poles is not due only to differences in the radii of the earth, but that other factors are also responsible such as the rotation of the earth and the increase in the earth's density toward its center. (GA)

In a certain sense the theory of the Maxwell fish-eye and that of the Kepler problem are formally equivalent. This equivalence and its consequences are described in some detail. (Author/GA)

A discussion of levers, moments of inertia, fulcrums and forces involved in the action of boat rowing is presented. (CP)

The large-scale generation of electrical power by wind turbine fields is discussed. It is shown that the maximum power that can be extracted by a wind turbine is 16/27 of the power available in the wind. (BB)

An elementary method based on classical Green's functions for the calculation of the momentum autocorrelation function for a harmonic oscillator and a damped harmonic oscillator is presented. (BB)

This paper draws attention to cart wheels, two wheels rotating freely about a common axle and rolling on an inclined plane, both as a demonstration and as a satisfying application of dynamical analysis. (BB)

Addresses the problem of the optimum angle at which a putter should release the shot in order to achieve maximum distance. (BB)

Discusses the concept of elementary particles. Reviews the history of the neutrino, and explains why the quarks, although they themselves are not "observed" in isolation, are to be considered elementary particles. (GA)

Presents a discussion in Perturbation theory in quantum mechanics for the interaction of electromagnetic radiation with matter. Advocates the use of electric dipole interaction whenever it can be used as compared to the vector potential interaction. (GA)

Demonstrates that the assumption of a single-frequency wave does not eliminate the effect of frequency dispersion upon energy transport velocity nor upon energy density. (Author/SL)

Demonstrates that the standard deviation of the position probability of a particle moving freely in one dimension is a function of the standard deviation of its velocity distribution and time in classical or quantum mechanics. (SL)

Describes an experiment for determining the acceleration of a projectile. (SL)