Investigates a sequence of inelastic collisions resulting among three spheres, whose centers are on a line, when at the outset the leftmost sphere is propelled to the right and the other two spheres are at rest. Expressions are obtained for velocity, time, and distance variables. (MLH)

Supports the contention that sliding friction explains the inversion of a tippe top when it is spun upon a flat surface. Provides a rigorous analysis of the top's mechanics, together with computer-generated solutions of its equations of motion. (MLH)

Discussion of the shortcomings of textbook explanations of surface tension, distinguishing between concepts of tension and capillary rise. The arguments require only a clear understanding of Newtonian mechanics, notably potential energy. (DF)

Discusses the work and energy involved in walking on horizontal surfaces. (MLH)

In the first part of this article, brief reviews were given of the atomic-scale mechanisms by which crystalline solids deform and the nature of the interface between such solids and their environment. In this part, the mechanisms of a representative range of surface and environment sensitive mechanical phenomena are explained. (Author/CP)

Uses centrifugal and Coriolis force to explain electric and magnetic fields induced inside rotating superconductors. (MLH)

Presents eight short articles on the following topics: demonstration of possible excitations in liquids; Mohr's circle and the determination of moments of inertia; braking distance versus mass for automobiles; a constant gravity model of the earth's interior; diffraction pattern of a hair; hyperbolic mirrors; sulfation plates; and principles of…

Examines the possibility of observing interference in quantum magnification experiments such as the celebrated "Schroedinger cat". Uses the possibility of observing interference for separating the realm of microscopic from macroscopic dynamics; estimates the dividing line to fall at system sizes of about 100 Daltons. (MLH)

Presents an application of the formulas of kinematics to the real driving situation, involving motion at constant speed and deceleration. Suggests the problem be used as an example in class, a homework assignment, or a test item. (CC)

Shows how to include the dissipative forces of classical mechanics in quantum mechanics by the use of non-Hermetian Hamiltonians. The Ehrenfest theorem for such Hamiltonians is derived, and simple examples which show the classical correspondences are given. (MLH)

Outlines a mathematical paradox obtained when calculating the dimensions of a hydorgen molecule using relativistic wave mechanics. (MLH)

In this paper a formalism is developed that enables one to write by inspection the matrix which represents the transformation between two coordinate systems, one of which is rotated about an arbitrary axis. (Author/CP)