Presents a design for a system that can be used to make a graphic representation of numerical data obtained from a sound level meter. (GS)

Describes how to construct an inexpensive microscope that uses a drop of water rather than a glass bead for a lens. (BR)

Presents some experiences of a physics teacher in inventing apparatus, obtaining patents, starting a company, and going into production. (GS)

Describes a simple and inexpensive model to demonstrate the pulsed magnetic resonance phenomenon. Gives the details of construction of the device which can provide a direct demonstration of the precessional motion of a magnetic moment in a steady magnetic field. (Author/GS)

This report contains the findings of the National Science Foundation's (NSF's) Survey of Scientific and Engineering Expenditures at Universities and Colleges, FY 1981. The survey was mailed to 563 universities and colleges, including all institutions that granted a graduate science or engineering (S/E) degree, as well as to academic institutions…

Described is a simple experimental system, which uses radioactive carbon dioxide to study whole leaf photosynthesis under a variety of conditions. Other experiments and simple apparatus for the experiments are also described. (Author/RH)

Presents a summary of the state of the field in instrumentation as it existed in 1940-1941 as described in articles written at that time by R. H. Muller. (SLH)