Describes the theory and application of an atomic fountain which pushes the atoms by laser pulses. Discusses the applications in measuring atomic properties and in building an atomic clock. (YP)

Radiolabelled pesticides are used: in studies involving improved formulations of pesticides, to assist in developing standard residue analytical methodology, and in obtaining metabolism data to support registration of pesticides. This manual is designed to give the scientist involved in pesticide research the basic terms and principles for…

Whether you're a stream studies novice or a veteran aquatic monitor, "Watershed Dynamics" gives you abundant practical resources to extend your students' investigations into local water quality and land-use issues. This two-part set is ideal for teaching biological and ecological concepts and research techniques. It also shows how the interplay…

Discusses 5 innovative experiments conducted by Rutherford in early 1900s utilizing the 30 milligrams of radium salt he personally carried from Europe to Canada in 1903. Traces his work with alpha particles from his original results which determined their nature, charge, and mass, to his technique of backscattering which helped to advance…

This document was designed to be used as a tool to assist students with research-oriented science projects. It provides a step-by-step approach to the development of such projects addressing: (1) selecting a research topic; (2) learning about the subject; (3) developing a specific purpose for the research; (4) planning the project; (5) initiating…