There has been a significant gap between the tools used for the design of a building's architectural form and those that evaluate the structural physics of that form. Seeking to bring the perspectives of visual design and structural engineering closer together, we developed and evaluated a design tool for students and practitioners to explore the…

Explains how to construct a three dimensional model for stereographic projection. It will be suitable for presenting the symmetry of crystal systems, and will help physics students understand the nature of crystallography. (GA)

Describes a factorial experiment that is used as a laboratory exercise in a research methods course. Uses a Howard-Dolman depth perception apparatus, combining the factors of viewing condition and rod orientation to illustrate the nature of an interaction and the necessity of an additional analysis of simple main effects. (Author/LS)

Investigates the ability of Malawians ranging from 7 through 23 years of age to make judgements of the relative sizes and spatial locations of objects in photographic scenes with restricted cues to depth. All age groups responded with an accuracy significantly above chance. Exhibiting maximum scores, adults were significantly more accurate than…

Six motion projections were presented to first graders, seventh graders, and college students (N=72) in order to determine whether children can utilize the same motion parallax information as can adults. (MP)

Malawian children and young adults displayed sensitivity to static information for depth when stimulus objects subtended equal visual angles. When the more distant object was larger but subtended a smaller visual angle than the nearer, subjects tended to base judgments on retinal size. Motion paralax information increased accuracy of judgments of…

Television wide-angle lenses expand distances and increase apparent velocity, while long lenses compress space and reduce apparent velocity. Based on these assumptions, a study was conducted (1) to examine the ability of viewers of different ages to recognize how lenses change the "real world" they project and (2) to extend Jean Piaget's…