| Math_Forum__2001_Mathematics_Game A contest that asks to write all integers from 1 to 100 using only the digits 2,0,0,1 and arithmetic operations. |
| Sublime64\'s_Home_Page Whats your weight on all the planets? Science, Physics, Astro Picture Gallery. Space. |
| Taylor_GeoServices Provides geological, biological, environmental and mapping consulting services to Pennsylvania, Delaware, New Jersey and the east coast from its office in Swarthmore ,Pennsylvania. |
| The_Engineer Online version of the UK weekly newspaper for engineers in the manufacturing industry. Web site includes the latest issue plus archives of previous issues, job listings, and an events calendar. |
| The_Neurosciences_Institute Independent scientific research institution dedicated to increasing knowledge of the biological basis for brain function. |
| X-ray_Industries Providers of NDT supplies and services. |
| Quarteroni,_Alfio Ecole Polytechnique Fédérale de Lausanne. Modelling and scientific computing. |
| American_Society_for_Microbiology Conferences, journals, public policy and funding issues, topical reports, and links. |
| Strongylocentrotus_purpuratus Photograph and information on the purple sea urchin. |
| Battery_Technology_Comparison Rechargeable. Compares AA cells, a few larger batteries, and supercapacitors. |
| American_Indoor_Air_Quality_Council A non-profit organization that provides its membership IAQ training, IAQ certification, and bi-monthly newsletters. |
| Eurostat Providing independent advice on statistical software products. Includes list of programs to choose from and free demo downloads. |
| Vita_Needle_Company Manufacturers of stainless steel tubing, wire needles and luer fittings. Stainless steel dispensing needles and tube fabrication custom and off-the-shelf designs. |
| University_of_Arizona Information and pictures of plant diseases (listed by crop or plant common name), disease publications, newsletter and related links. |
| Bio-WORLD_com Molecular tools, chemicals, autoradiography supplies, exam gloves, plastic consumables and laboratory equipment. |
| San_Diego_University_for_Integrative_Studies BA, MA, PhD offered in Humanistic Studies. Degree promotes inquiry into the meaning of human growth and development. Online and local classes. |
| (Germany)_Muenster SFB 478: Geometrische Strukturen in der Mathematik. German/English. |
| Amphibian_Checklist_and_Identification_Guide Taxonomic checklist for North America north of Mexico and detailed accounts, including photos and range maps, for dozens of species. |
| Natural_Language_Semantics An international journal of semantics and its interfaces in grammar. Includes description, subscription information, editorial board, author instructions and journal contents. Online version available |
| GeoNames A worldwide geographical database with a search function, browsable maps, and downloadable data files available free under a Creative Commons attribution license. |