Discusses an open-ended experiment which is instigated by students to study noise levels on the Kent State University campus. Indicates that the activities make it possible for the students to acquire socially relevant and potentially useful information under more realistic environments. (CC)

Discusses implementation of a conceptual physics course with emphases upon aspects of acoustics. Includes an outline of the syllabus used. (CC)

Research supported by the U.S. Air Force Office of Scientific Research, Directorate of Mathematical and Information Sciences. (DD)

Abridged version of the original Swedish article. (DD)

Two major implications of this study are that repeated testing is a necessity for young children, and that repeated contrasts may provide a more accurate assessment of phonological discrimination ability in children. (Authors/MB)

Research sponsored in part by a contract with the U. S. Office of Naval Research. Longer version of the article appears in Han and Weitzman, Acoustic Characteristics of Korean Stop Consonants, Studies in the Phonology of Asian Languages III," University of Southern California, 1965. (DS)

Describes a ripple tank demonstration that displays interference patterns responsible for producing beats and provides photographs of computer simulations of various beat interference patterns. Includes programs for the computer simulation and equations of constructive interference paths in beat interference patterns. (Author/SK)

Part one of a three-part series about noise pollution and its effects on humans. This section presents the background information for teachers who are preparing a unit on sound. The next issues will offer learning activities for measuring the effects of sound and some references. (SA)

Describes some experiments of parametric effects intended to be disigned by the students themselves and shows how to introduce parametric interactions and nonlinearities to the students in a simple manner. (GA)

A qualitative demonstration of wave motion along a linear spring is being used, quantitavely, to present three methods of measuring the phase velocity of the waves. (GA)

An evaluation of various plan forms for primary schools analyzes school activities in terms of their acoustic characteristics. The acoustic properties of different teaching spaces and the extent to which these meet the needs of the various types of activity are discussed. (Author/MLF)

Notes that few phonemes exhibit greater variance in the membership of phonemes that make up an equivalency class than the phoneme represented by /r/. Points out that the relationship between the auditory features of the speech signal and phonetic classification provides insight into a language's encoding and decoding system. (23 references)…