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Presence of methane and ortho/para hydrogen on Uranus and Neptune is observed using high-resolution spectroscopy. The parameters measured are 4-0 S(0) and S(1) hydrogen quadrupole lines and the 6818.9 Angstrom CH4 line. These parameters help in knowing the width of visible atmosphere and tropospheric methane mixing ratio of both Uranus and Neptune.

Discusses single-board microcomputers which are designed primarily for data acquisition and control. Directed toward individuals with little or no hands-on experience with microcomputers, this article gives references, among others, for reading about and purchasing microcomputers. (SK)

Presents an experiment to investigate centripetal force and acceleration that utilizes an airplane suspended on a string from a spring balance. Investigates the possibility that lift on the wings of the airplane accounts for the differences between calculated tension and measured tension on the string. (MDH)

Successful economic development in a community entails the participation of financial institutions and financing of a business project. The Industrial Initiative program of Kandiyohi County, MN, is a loan program which is easy to use and is devoid of the usual red tape. Its success proves that individuals willing to make a stake at investing in their communities and an active financial sector can direct the community's future.

During a 1990 NSF-sponsored workshop on improving upper level experimental physics laboratories, it was agreed that a list of resources from publishers and from institutions with strong upper level labs would be useful to the physics teaching community. This compilation is by no means exhaustive, and suggestions for additions are welcome. If you have or know of materials that should be included, please contact the compiler of this list, Lee Larson, Department of Physics, Denison University, Granville, Ohio (614-587-6468; Bitnet LARSON [at] DENISON).

A basis of Hermite splines is used in conjunction with the collocation method to solve the orbital equations for diatomic molecules. Accurate solutions of the Hartree-Fock equations are obtained using iterative methods over most regions of space, while solving the equations by Gaussian elimination near the nuclear centres. In order to improve the speed and accuracy of our iterative scheme, a new self-adjoint form of the Hartree-Fock equation is derived. Using this new equation, our iterative subroutines solve the Hartree-Fock equations to one part in 10[sup 6]. The Gaussian elimination routines are accurate to better than one part in 10[sup 8]. [ABSTRACT FROM AUTHOR]

Presents an obituary for professor Richard H. Howe who died on November 5, 1986.