Fossil Glasses Produced by Impact of Meteorites, Asteroids and Possibly Comets with the Planet Earth

In recent times one of the most intriguing mysteries of geology bas been the occurrence of aerodynamically-shaped glasses on five continents of the earth. These glasses under discussion are obviously not of fulgurite origin. Recent research indicates that these glasses known as tektites are ~he result of meteorite, asteroid, or possibly comet impact. Impact glasses, in general, differ from volcanic glasses in that they are lower in water content, have lower gallium and germanium contents, and are not necessarily in magmatically unstable continental areas

Analysis of F and G subdwarfs. 3 - An abundance analysis of the subdwarf mu Cassiopeia

Model atmospheric abundance analysis of subdwarf micron Cassiopeia constellatio

Hazard's Toll: The Costs of Inaction at the Salton Sea

The objective of this report is to estimate the costs of inaction - defined as the absence of any large-scale revitalization or air quality management project - at the Salton Sea, to provide decision-makers and the general public with information for deciding on a path forward

Constrained Molecular Dynamics Simulations of Atomic Ground-States

Constrained molecular dynamics(CoMD) model, previously introduced for nuclear dynamics, has been extended to the atomic structure and collision calculations. Quantum effects corresponding to the Pauli and Heisenberg principle are enforced by constraints, in a parameter-free way. Our calculations for small atomic system, H, He, Li, Be, F reproduce the ground-state binding energies within 3%, compared with the results of quantum mechanical Hartree-Fock calculations.Comment: 3 pages, 2 figure