- Atari 2600: Millipede (Internet Archive)
Millipede is a 1982 arcade game by Atari, Inc. and is the sequel to the arcade hit, Centipede. The objective of the game is to score as many points as possible by destroying all segments of the millipede as it moves toward the bottom of the screen, as well as destroying and avoiding other enemies. The game is played with a trackball and a single fire button, which can be held down for rapid-fire. The game is over when the player’s last life is lost.
- United States and Canada Obsidian Source Catalog (sourcecatalog.com)
Welcome to the U. S. and Canada Obsidian and FGV (Fine-Grained Volcanic Toolstone) Source Mapping Project home page. For many years, we’ve been chasing down obsidian and FGV sources in the western United States and have promised that someday - when enough source information was finally available - we would begin creating maps that illustrate the geographic patterning of these archaeologically-significant prehistoric sources of natural glass and volcanic toolstone. That day has finally come and we are currently in the process of assembling and producing source maps for the western United States and Canada. Along with a few states (and provinces) for which we still lack good GIS coverages or adequate source data, we’re currently working on regional maps that illustrate the spatial ranges of several geographically-extensive sources.
- Obsidian (Wikipedia)
Obsidian (/əbˈsɪdi.ən, ɒb-/ əb-SID-ee-ən ob-) is a naturally occurring volcanic glass formed when lava extruded from a volcano cools rapidly with minimal crystal growth. It is an igneous rock.