Examples of user experiences of the Enviro Monitor are cited together with advantages for its use. This is an all-weather instrument capable of making a continuous record of pollutants and controlling unattended operations at remote locations under adverse weather conditions. (BL)

Provides instructions for making several miniature substitutes for more expensive supplies and science equipment. (CP)

Scientific, legal, and legislative roles in the interaction of science and society are examined in the context of the use of technical measures related to intoxication. The case is examined in detail as a model of the way in which the relationship is regulated. (AL)

Discusses the advantages of using automated analytical procedures in providing rapid, inexpensive alternatives to traditional methods and in teaching skills used in many professions and industry. (CP)

Short articles describe the production, photography, and analysis of diffraction patterns using a small laser, a technique for measuring electrical resistance without a standard resistor, a demonstration of a thermocouple effect in a galvanometer with a built-in light source, and a common error in deriving the expression for centripetal force. (AL)