Physical, nuclear, electronic, biological, geological, crystallographic, reduction potentials, isotope abundance, electronic configurations, and ionization enthalpies data for each element. Earth Science Global Change Master Directory Descriptions of and access to information for over 3,900 Earth Science data sets. Ozone Hole Tour Provides an introduction to research on the Ozone Hole. The Weatherworld 2010 Project Integrates current and archived weather data with multimedia instructional resources. Contains guides to meteorology and remote sensors, as well as archived case studies.
Most material is from research-level or university mathematical sites.
This site is organized according to the Mathematics Subject Classification devised by the American Mathematical Society. Each division has its own page with an introduction, list of subdivisions, bibliography of general works on the subject, and selected Web sites with hotlinks. They include unsolved math problems, FAQs about math, pointers to Java applets in math and related fields, quotations, biographies, meta sites and more. The Internet Pilot to Physics Physics research and education meta-site for current physics information. PhysNet L istings of physics departments, documents, free journals, and conferences.