Discusses the optics of fly fishing, considering where to cast the fly once a fish is seen. Also considers what the fisherman looks like to the fish, examining refraction at a water surface, actual and apparent light rays, and how sticks in the water might look to a fish. (JN)

Using elementary principles of electron optics, the student gains greater understanding of the classical similarities between particles and waves. A method of solution is illustrated, and the results appear more reliable than those existing in prior literature. (Author/TS)

Suggests a method treating geometric optics using a microcomputer to do the calculations of image formation. Calculations are based on the connection between the composition of lenses and the mathematics of fractional linear equations. Logic of the analysis and an example problem are included. (JM)

Describes a search and match computer program which retreives from a user-generated mineral file those minerals which are not incompatible with the observed or measured optical properties of an unknown. Careful selection of input lists make it unlikely that the program will fail when reasonably accurate observations are recorded. (Author/JN)

Highlights of this overview of virtual reality include optics; interface devices; virtual worlds; potential applications, including medicine and archaeology; problems, including costs; current research and development; future possibilities; and a listing of vendors and suppliers of virtual reality products. (Contains 11 references.) (LRW)

Papers on the acquisition and use of computers and telecommunications systems by colleges and universities are presented ("Information Technology: Instruction Is the Issue--An Introduction"; "The 'Star Wars' Universities: Carnegie-Mellon, Brown, and M.I.T."; and "Instruction and the Computer"). The first section…