Spacelab is a facility which enables scientists and engineers to go into space for in-orbit research studies. For the 10 European nations that designed, constructed, and financed Spacelab jointly through the European Space Agency and for the National Aeronautics and Space Administration, which designed, constructed, and financed the Spacelab…

Describes a technique in which a Fabry-Perot etalon can be used to demonstrate longitudinal and transverse modes present in a laser beam. (Author/CP)

Describes how to modify an electroscope so the charge can not leak out. (LS)

Presents results of a survey given to college students concerning the use of a planetarium in courses and their decisions to take the courses. (CP)

Describes the experimental apparatus and method for the study of magnetic vector potential (MVP). Includes a discussion of inherent errors in the calculations involved, precision of the results, and further applications of MVP. (GS)

Describes differences in the construction of a colorimeter and a photometer. Gives examples of ways in which light-measuring instruments can be used by biologists. These examples can be used either as class experiments or as individual projects. (GS)

Describes some "openers" to use in science class to attract attention, create interest or maintain interest. Some examples of materials that can be used are a radiometer, a drinking bird, Geiger-Muller Counter and a human skeleton. (BR)

Describes the inexpensive construction of an uptake volume potometer uptake and loss potometer, and experiments on plants that can be conducted with the equipment. (BR)