Discussions are presented for implementing photoacoustic spectroscopy as a technique for describing the photoacoustic effect. This technique makes it possible to study optical absorption in samples which are usually difficult to study. It is suggested that this approach makes understanding of the photoacoustic effect accessible even at the…

Although they abandon traditional techniques and materials, today's radical composers may still be considered the logical continuation of Western classical tradition, for they retain the one thing most characteristic of Western music: self-conscious, intellectual, individualized craftsmanship. (Part of a theme issue on aspects of contemporary…

A sound detection security system can help cut damages from thieves and vandals. (Author/MLF)

The results of three experiments provide evidence that the observed detrimental effects of acoustic similarity on serial recall may be a consequence of poorer memory for the order of consonant sounds as opposed to vowel sounds. (PMJ)

Examines listeners' use of acoustic properties in making personal attributions. In three experiments, subjects listened to recordings of male speakers answering two interview questions and rated the speakers on a variety of scales. (CM)

Applied to the recognition of words in noise, the theory of the perceptual identification of complex stimuli provides a quantitative account of the proportions in which correct and erroneous responses of different frequencies will occur. (Author)

Background information on the acoustics of the violin is given as a basis for student physics laboratory projects. References are suggested that can provide a basis for many experiments. (SA)

In order to investigate the articulatory dynamics of the tongue in the production of Swedish vowels, electromyographic (EMG) and X-ray microbeam studies were performed on a native Swedish subject. The EMG signals were used to obtain average indication of the muscle activity of the tongue as a function of time. (NCR)

Discusses the following: another version of Doppler beats; alternate proof of spin-1 sin-1/2 problems; some mechanisms related to Dirac's strings; Doppler redshift in oblique approach of source and observer; undergraduate experiment on noise thermometry; use of the time evolution operator; resolution of an entropy maximization controversy;…

Investigates and explains the phenomenon associated with Rubens flame-tube demonstration, specifically the persistance of flames at regular intervals along the tube for few minutes after the gas is turned off. (GA)

Describes demonstrations used by the nineteenth century physicists to determine if two bodies oscillating at the same acoustic frequency were in phase. (GA)