Natural gas production in Wyoming is a lucrative and influential industry. All the perks--jobs, education spending, the budget surplus--are huge incentives for communities and the fossil fuel-friendly state legislature to play along, to stay silent. And many are willing. There has been natural gas production in the state for almost a century, but…

Fluid power technicians, sometimes called hydraulic and pneumatic technicians, work with equipment that utilizes the pressure of a liquid or gas in a closed container to transmit, multiply, or control power. Working under the supervision of an engineer or engineering staff, they assemble, install, maintain, and test fluid power equipment.…

Measurement of the level of a liquid is needed in many hydrodynamic situations. In the present article, this has been achieved with a conductivity sensor for the specific case of water levels. The use of this system is illustrated by the automation of a gasometer in which the gas is collected in an inverted measuring cylinder resting in a water…

Secondary vocational-technical education programs in Mississippi are faced with many challenges resulting from sweeping educational reforms at the national and state levels. Schools and teachers are increasingly being held accountable for providing true learning activities to every student in the classroom. This accountability is measured through…

Hydraulics is an engineering specialty and largely neglected as a topic in physics teaching. But the history of hydraulics from the Renaissance to the Baroque, merits our attention because hydraulics was then more broadly conceived as a practical "and" theoretical science; it served as a constant bone of contention for mechanics and…

Students have difficulties in physics because of the abstract nature of concepts and principles. One of the effective methods for overcoming students' difficulties is the use of analogies to visualize abstract concepts to promote conceptual understanding. According to Iding, analogies are consistent with the tenets of constructivist learning…

The practice of strategic enrollment management (SEM) can be likened to navigating a ship through uncharted waters. Dating back to the 1970s, the very concept of enrollment management came into being and has since evolved in the face of a steady progression of daunting challenges requiring repeated course corrections. A massive demographic…

The Toshka Project, located in Egypt, involves excavating a canal to carry about 380 billion ft[supercript 3] of water every year from Lake Nasser to the Toshka Depression, southwest of Aswan. This will eventually create a new valley to the River Nile in the western desert of Egypt in addition to the currently existing prehistoric river course.…

Secondary vocational-technical education programs in Mississippi are faced with many challenges resulting from sweeping educational reforms at the national and state levels. Schools and teachers are increasingly being held accountable for providing true learning activities to every student in the classroom. This accountability is measured through…

Describes a new technology--the cartridge or logic valve, which streamlines hydraulic systems by decreasing the number of individual components and increasing system efficiency. The author describes and illustrates the principles and components of the valve, explains the types of cartridge inserts, and discusses applications of the system. (CT)

Illustrated is the use of pocket calculators for solving the Francis formula for rectangular, triangular, and V-notched weirs. (CS)

This article discusses the development of hydroelectric power in Appalachia. (NQ)

A model of the interface design process is proposed that makes use of two interdependent levels of cognitive analysis: the study of the criterion task through an analysis of expert/novice differences and the evaluation of the working user interface design through the application of a practical interface analysis methodology (GOMS model). This dual…

Cohesion and gravitational force are given as the mechanisms by which the siphon works. Hydrostatic theories and experimental results are given to support this conclusion. (TS)

The use of a Johnson Water Well Analyzer in the analysis and testing of high pressure straddle packers in a feasability study of deep underground injections of wastewater is described. (MR)