The goal-directed theory of imitation (GOADI) states that copying of action outcomes (e.g., turning a light switch) takes priority over imitation of the means by which those outcomes are achieved (e.g., choice of effector or grip). The object [fewer than] effector [fewer than] grip error pattern in the pen-and-cups task provides strong support for…

Clock reactions based upon competing oxidation and reduction reactions of iodine and starch as the most popular type of chemistry example is presented to illustrate the redox phenomena, reaction kinetics, and principles of chemical titration. The examination of the photophysical principles underlying the iodine fluorescence quenching clock…

Education is an active process in which instructors apply various devices to make the material to be taught more suitable for students' perception. As the capabilities of available devices improve, so should the methods of teaching make the best use of them. No tool can ever replace an instructor, but tools can enhance the efficiency of…

This study explored 3- and 4-year-old children's development of scientific vocabulary from participation in repeated interactive read-aloud events and retellings of three informational picture books about light and color, followed by hands-on science activities. Thirty-two children attending a YWCA preschool were matched by age and general…

A new type of DVD spectroscope, the periscope type, is described and the numerical analysis of the observed emission and absorption spectra is demonstrated. A small and thin mirror is put inside and an eighth part of a DVD is used as a grating. Using this improved DVD spectroscope, one can observe and photograph visible spectra more easily and…

A pictorial, step-by-step description of a method of transferring pictures from magazines to translucent film or acetate. (HB)

Article focuses on color slide production. (HB)

How Great Britain is developing color television systems. (HB)

This paper discusses recent studies of the adult visual evoked potential (VEP) which have indicated that specific components of the complex waveform obtained are related to the three basic color processes, and that these components interact in ways that seem to agree with opponent-colors phenomena. The components identified as being related to the…

A new graph transfer method will enable schools to increase the use of recreational surfaces by color coating them with maps of the United States, the world, and whimsical animal game designs. (Author/MLF)

Inpatients (n=67) treated for alcohol and drug abuse were administered the MMPI (Minnesota Multiphasic Personality Inventory) and Luescher Color Test (LCT). Patients showed more preference for brown than did normal adults and also obtained higher (i.e., presumably more pathological) scores on Luescher's total score scale and compensation scale.…

This study determined that the color of the target has no effect on throwing accuracy. (RC)

A basic knowledge of how fluorescent lamps are constructed and how they emit light can be beneficial in optimizing the use of this energy-conscious light source. (Author/MLF)