| General_Relativity_Tutorial Highly recommendable collection of interconnected web pages that serve as an informal introduction to general relativity. While some mathematics is used, the focus is on the key ideas. By John Baez (U |
| Mr__&_Mrs__B\'s_World_of_Science Physics, chemistry and biology course notes, syllabi, assignments and activities. |
| Thysanura_of_North_America Systematic checklist. |
| NASECA__North_American_Stormwater_and_Erosion_Control_Association Canada. Non-profit organization dedicated to bringing individuals together to discuss, inform and network in the stormwater and erosion control industry. |
| USGS_Astrogeology__Other_Objects Official names of features on asteroids as approved by the International Astronomical Union. Data and images for selected asteroids and comets. |
| Telescope_Buyer\'s_Guide Finding a way through the maze of ads, catalogs, claims and counter claims about which is best or the least expensive. |
| International_IC_Conference_and_Exhibition Information on Global Sources sponsored technology shows held in Asia. |
| Rhea_Corporation CCD spectroscopy systems |
| Minkowskian_geometry_and_quaternion_algebras An exploration of the geometry of quaternion algebra, including a commutative variant which exhibits the properties of Minkowskian geometry. |
| Northeast_Organic_Dairy_Producers_Alliance Network of organic dairy farmers in Northeastern, U.S., promoting ethical, ecological and economically sustainable farming practices. |
| SummerMath A four-week program for young women entering ninth through twelfth grades. Mount Holyoke College, MA, USA. 2004 session: 27 June -- 24 July. |
| Prime_Focus-Iowa_Aurora_Borealis Lots of nice pictures. |
| Trees_of_Alabama_and_the_Southeast Brief text and numerous photos of both native and planted trees. Includes section illustrating terminology with photographs. |
| Education_Center_of_the_American_Phytopathological_Society Information for students and teachers of plant pathology. Includes laboratory exercises and lessons, advanced and introductory topics, illustrated glossary, resource catalogs, sample exam questions an |
| Ziena_Optimization_Inc_ Nonlinear (NLP) solver with interfaces to most modeling languages. Consulting for problem formulation and training are also available. |
| Symmetry_Solutions Supply and support a diverse range of software for industrial engineering, CAD/CAM and process engineering. |
| Fibonacci_Numbers_and_the_Golden_section_in_Nature Puzzles and things to do, for schools, teachers, colleges up to university level students, or just for recreation. |
| Integrated_Pest_Management_at_Iowa_State_University Includes an integrated crop management newsletter, and horticulture and home pest news. |
| Metaphotonics_-_Photonic_Metamaterials_in_Karlsruhe Reports the research on the fabrication and optical characterization of functional metallic nanostructures for optical frequencies. |
| Georgetown_University_-_Biology_Department Information about programs of study, faculty, alumni, student resources. Also includes a seminar schedule and student organizations. |
