Discusses the description of pendulum motion on the Earth's surface utilizing mathematics at the level of average high school students. (SL)

Defines and investigates a moment of inertia tensor for a quantum mechanical wave packet. (SL)

Demonstrates that a particle traveling in a helical path provides a mechanical model describing the quantum-mechanical wave function formalism. (SL)

Reviews the historical development of concepts of motion from the time of Aristotle to Newton. (SL)

Describes experiments simulating the mechanics of the human elbow and back. (SL)

Presents results of analyses of flat and conical depressed target surfaces used in a bouncing ball experiment. (SL)

Describes apparatus for electrostatic painting and two different Foucault pendulum demonstrations. (SL)

The study reported in this paper developed a categorization of teacher physical motion in relation to verbal actions and analyzed two random samples of such motion as a basis for posing ten hypotheses concerning teacher nonverbal behavior. (MJB)

An automated procedure for range of motion training was tried with two cerebral palsied retarded young men. (Author/CL)

In response to conventional rocket demands on fuel supplies, electromagnetic launches were developed to give payloads high velocity using a stationary energy source. Several orbital mechanics problems are solved including a simple problem (radial launch with no rotation) and a complex problem involving air resistance and gravity. (DH)

Scientists often use the "slingshot effect" (also called the "gravity assist") of the gravitational field of a planet to increase or decrease the velocity of a spacecraft. Examples of this effect, puzzling aspects, a qualitative explanation, details of necessary calculations, a thermodynamic analogy, and other topics are discussed. (JN)

Illustrates the differences between explanations of projectile motion by a physics teacher and a baseball player. Equations are discussed and results are shown graphically. (DH)

Children's and adolescents' responses to some nonmimetic figures of motion showed that the figures become more effective in indicating direction of motion as age increases; however, at a given age, some are much less effective than others. As indicators of speed, some figures are intrinsically more effective than others. (Author/RM)

Explains the principles of the science of motion and examines Thomas Kane's deductive approach to the study of dynamics. Also recounts Kane's advances in explaining classic mechanics and discusses the advantages of his methods in the formulation of equations of motion and in applications to space technology. (ML)

Discusses the air resistance on projectiles, examining (in separate sections) air resistance less than gravity and air resistance greater than gravity. Also considers an approximation in which a trajectory is divided into two parts, the first part neglecting gravity and the second part neglecting the air resistance. (JN)