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English, Medical, Legal, and Computer Dictionaries, Thesaurus, Encyclopedia, a Literature Reference Library, and a Search Engine all in one!

Bayer (the aspirin company) hosts a cool interactive Flash webpage with the Periodic Table of the Elements where descriptions of the elements pop up as you move your cursor over each element on the table. The explanations also tell you what each element is commonly used for.

The Specialized Information Services (SIS) Division of the National Library of Medicine (NLM) is responsible for information resources and services in toxicology, environmental health, chemistry, HIV/AIDS, and specialized topics in minority health.

Information on thousands of prescription and over-the-counter medications is provided through two drug resources -- MedMaster, a product of the American Society of Health-System Pharmacists (ASHP), and the USP DI Advice for the Patient , a product of the United States Pharmacopeia (USP).

Type the word that you would like to find. If you're not sure of the spelling, type the first few letters, followed by an asterisk(*).

The adam Health Illustrated Encyclopedia includes over 4,000 articles about diseases, tests, symptoms, injuries, and surgeries. It also contains an extensive library of medical photographs and illustrations. For more information about adam, see its content review board.

Values given below are from the CODATA 1998 recommended by the National Institute of Standards and Technology of United States (NIST). Values contain the (uncertainty) in the last two decimal places given in brackets. Values that do not have this uncertainty listed are exact.

NCES of the US Department of Education is the primary federal entity for collecting and analyzind data that are related to education in the United States and other nations. Search for colleges, public schools and school districts, private schools, public libraries, Nation's report card, elementary and secondary public school data, postsecondary education data.

Geometric. Angle. Length -inch, foot, mm, mile, meter. Area. Volume. Kinematics. Time. Velocity -mph, km/hr, ft/s, knot. Acceleration. Volume Flow Rate. Kinetics. Mass -lbm, kg, oz, carat, slug. Density. Force -lbf, kgf, newton, dyne, more. Moment/Torque. Pressuresi, in-Hg, in-H2O, torr, bar. Energy, Power -hp, watt, Btu/s, ton (refrig.). Temperature, Viscosity, Electric, Luminous, Magnetic, Thermal, Permeability, Wire Gages, Sheet Metal Gages, Hardness, more categories... Currencies (updated daily): US Dollar, Euro, Japanese Yen, Chinese Yuan (Renminbi), more... Fundamental Constants: Mathematical, Universal, Atomic, Physical, Electro-Magnetic.

Periodic table, element list. name, symbol, atomic number, atomic weight.

Developed by the US Environmental Protection Agency (EPA), this online dictionary defines in non-technical language the more commonly used environmental terms appearing in EPA publications, news releases, and other Agency documents available to the general public, students, the media, and Agency employees.

Developed by Cambridge Healthtech Institute, this glossary allows users to search on a known term, or browse terms alphabetically, or by category. Links to related Web sites are included within term glosses.

Prepared by the Southern Soybean Disease Workers (SSDW). SSDW is an organization of pathologists, nematologists, extension scientists, industry personnel, and private consultants involved with soybean production and research in the southern United States. These states include Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, Florida, Kentucky, Tennessee, Alabama, Mississippi, Missouri, Arkansas, Louisiana, Texas, and Oklahoma.

Scirus is the most comprehensive science-specific search engine on the Internet. Driven by the latest search engine technology, Scirus searches over 167 million science-specific Web pages.

The Public Library of Science (PLoS) is a non-profit organization of scientists and physicians committed to making the world's scientific and medical literature a freely available public resource.

Find and compare cars: Gas mileage (MPG), greenhouse gas emissions, air pollution ratings, and safety information for new and used cars and trucks. Gasoline prices. Gas mileage tips. Advanced technology. About EPA fuel economy ratings. Why fuel economy is important. Fuel economy data. Hybrid vehicles. Fuel cells, how they work.

This public service is cooperatively provided by the two time agencies of United States: a Department of Commerce agency, the National Institute of Standards and Technology (NIST), and its military counterpart, the U. S. Naval Observatory (USNO). Readings from the clocks of these agencies contribute to world time, called Coordinated Universal Time (UTC). The time maintained by both agencies should never differ by more than 0.000 0001 seconds from UTC (see recent comparisons).

Convert just about anything into anything else. Over 5,000 units, and 50,000 conversions.

Refdesk is about indexing quality Internet sites and assisting visitors in navigating these sites. At Refdesk that is all that counts and that is all that will ever count. Since 1995, Refdesk free and family friendly.

NationMaster is a massive central data source and a handy way to graphically compare nations. NationMaster is a vast compilation of data from such sources as the CIA World Factbook, United Nations, World Health Organization, World Bank, World Resources Institute, UNESCO, UNICEF and OECD. Using our site, you can generate maps and graphs on all kinds of statistics with ease.