Describes the modification of the SUUNTO compass and clinometer precision sighting instruments to make a compact geologic compass useful for measuring orientations of S-surfaces and rake angles of lineations. (SL)

Describes a simple computing system which can solve the quantum mechanical problem of a particle trapped in a rectangular potential well. (SL)

Describes an apparatus for demonstrating the transmission line propagation and radiation of electromagnetic waves in the 160-170 MHZ v.h.f. region. (SL)

Describes a low cost potentiostat/coulometer which can maintain an eletroylsis current of up to 100 MA at cell voltages as high as 100V. (Author/SL)

Reviews recent developments in chromatographic instrumentation. (SL)

Reviews the electronic instrumentation utilized in the medical measurement of oxygen concentration, blood oxygen, brain viability, and fluid balance. (SL)

Describes apparatus for demonstrating magnetic lines of force, plastic discharge tubes, minimum angle of deviation of light passing through a prism, light scattering, and measuring high voltage. (SL)

Describes an apparatus for quickly demonstrating the quantum effect of freezing the rotational energy of molecular hydrogen. (SL)

This section contains a listing of the manufacturers of environmental monitoring instruments. The manufacturers are listed alphabetically under product headings. Addresses are included in a different section. (MA)

Describes apparatus utilized to demonstrate physics principle. Equipment described includes a low pressure chamber, a 360 degree loop ramp, a tilted table demonstrating motion principles, and a method for casting a three dimensional display of magnetic lines of force. (SL)

Shows how a standard slide projector can be adapted for use as an effective spectroscope. Also describes three experiments using the modified slide projector. (JN)

Examination of relationships between manner of utilization of human and material resources and secondary school students' achievement in and attitude toward science found that frequency of use of laboratory resources had highest positive correlation with achievement, followed by quality of use of laboratory resources. Quality of use of laboratory…

Introduces a 3-dimensional mechanical lattice with adjustable telescoping mechanisms. Discusses the crystalline state, the 14 Bravais lattices, operational principles of the mechanical lattice, construction methods, and demonstrations in classroom. Provides lattice diagrams, schemes of the lattice, and various pictures of the lattice. (YP)

Reviews the usage of Genecon, a hand-operated generator, in science laboratory experiments, such as the relationship between motor and generator effects, the system's efficiency, Joule heating, and conversion of mechanical energy into electrical potential energy. Provides the address for purchasing the Genecon and accessories. (YP)

Introduces several one- and two-mode vibrating systems for demonstrations. Provides some recommendations for designing the corridor apparatus. (YP)