| Mathematics_of_the_Discrete_Fourier_Transform_(DFT) Notes by Julius O. Smith III, Stanford. |
| Lenntech__Chlorine Physical data, chemical properties, health and environmental effects. |
| MAMMFAUN A bibliography of publications concerning the geographical distribution of mammals. |
| Evolution__Origins_of_Humankind Interactive site introducing the human-like species that came before us, our closest ancestors, with a hominid family tree. |
| Exa_Corporation Develops and markets fluid flow simulation software. Headquarters in Lexington, MA, USA. |
| Czech_Society_of_Soil_Science Information about the society and its activities. Links to current conferences and meetings. |
| FAO_Country_Profiles_and_Mapping_Information_System The system integrates country-based information from FAO's thematic and statistical databases. Provides country profiles on the state of food, nutrition and agriculture. |
| Tribology_Research_Group_at_the_University_of_Sheffield Research, Teaching and Consultancy in a wide rage of tribology related areas. |
| GASCO_Precision_Gas_Mixtures Precision gas mixtures for gas detectors. NIST standards, flow regulators, gas generators. |
| DeTect_Inc_ Bird detection radar systems and environmental services. Information on the hazard, contact information and the services offered. |
| The_International_Economics_Network Annotated portal for international economics and related disciplines, which includes regularly updated links to research papers, news and commentaries in the field. |
| Element_1_Power_Systems,_Inc_ A fuel cell source firm producing proton-exchange membrane (PEM) fuel cells, electrolysers to make hydrogen, and a variety of solar powered hydrogen learning kits for science fairs and demonstrations. |
| Elliptic_Curves_with_Unusual_Torsion Two tables: the smallest conductor observed for a given rank and torsion, and the smallest conductor observed among curves of rank zero with a given Sha and torsion. Maintained by Tom Womack. |
| NASA_Revives_Pluto_Mission;_2004_Launch_Possible News report of a NASA announcement that a mission to Pluto could launch as soon as 2004 and arrive eight years later. (December 20, 2000) |
| The_Sapir-Whorf_Hypothesis 1999 overview of the history and development of the theories of linguistic determinism and linguistic relativity. By Rebecca Ash. |
| Photomicrography Excellent images of protozoa, algae and bacteria and background information on equipment used. |
| Misronet_IQ_Test This IQ test has time limits and speed factor. |
| Bioinformatics_Portal Comprehensive, centralized website for learning about and accessing bioinformatics and genomics services offered by the Center for Genomics and Bioinformatics at Indiana University. |
| Pheromones Scientific journal of Lithuanian Academy of Sciences on aspects of chemical communication. Includes table of contents. |
| Paleontological_Society_Programs Upcoming symposiums, meetings, and other events. |