Latest news on comets, asteroids, and near-earth objects from NASA.
Science & Technical
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Science & Technical
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Astronomy & Physics
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Astronomy
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Site contains a list of meteor showers, observation information, glossary and more.
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Aeronautics and space research information.
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Everything about planets in our solar system.
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Old Farmer's Almanac lists rise and set times for the sun, moon and planets, eclipse dates, and more.
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This Griffith Observatory page includes Sky Report, Eclipses, Moon Phases, Moonrise / Set, Sunrise / Set, Sun's Path, Tide Tables, Astronomical Zodiac, and Planetary Alignments.
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Chemistry
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Includes Acronym database.
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Agency for Toxic Substances and Disease Registry's alphabetical index of toxic substances and diseases.
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Locate common types of chemical information. Search by a chemical name, formula, molecular weight, or CAS Registry Number. The website is maintained by the National Institute of Standards and Technology.
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Complete table of elements, atomic weights, etc.
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Information from the Environmental Protection Agency on toxic substances released in the environment includes State Fact Sheets with facilities and chemicals listed.
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Physics
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CODATA Internationally recommended values of the Fundamental Physical Constants. Search for value by name (i.e. speed of light).
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Automobiles
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Specifications, parts & services, museums & clubs for American automobiles (antique, classic, vintage and muscle cars) manufactured between 1910 and 1975.
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Provides pricing guides for new and used cars and trucks. Includes road test results, information on recalled vehicles.
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New and used car pricing and car buying information and resources. In addition, the site offers free values for classic cars, motorcycles, antique motorcycles, boats, personal watercraft, snowmobiles, ATVs, RVs, SUVs, trucks, minivans, aircraft and manufactured housing.
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Car prices from the National edition.
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Earthquakes
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Caltech site. Latest seismographic information. Includes maps and historical information.
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United States Geological Survey latest earthquake information.
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General
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The Calculator Site features a variety of free financial calculators, imperial to metric converters and other useful calculation and conversion tools for general use.
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Good Calculators offers over 150 free calculators, such as loan, budget, engineering, financial and 3D Shape.
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This site offers simple, clear explanations of how things work from car engines to VCR's and even bread. You may scroll down the page or click on the Power Panel for a search index.
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Everyday science questions and answers.
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More than 4,000 free PDF versions of books published on sciences, engineering and medicine are available.
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Weather forecasts, heavenly details, sun, moon and planets, rise and set times.
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New scientific publication featuring free works of significance in all areas of biological science, from molecules to ecosystems, interfacing with other disciplines such as chemistry, medicine and mathematics. Content will develop as issues are added.
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Index to help identify and locate electronic schematics repair documentation by number.
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Science fair project ideas.
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From the Library of Congress, contains “Science Tracer Bullets” with histories and bibliographies, along with Science Reference Guides, and Internet Resources covering many science and technology topics.
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The gateway to reliable information about science and technology from across Federal government organizations.
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Geology & Oceanography
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10,000 years of volcanic eruptions. Keyword search, alphabetic and geographic indexes.
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Terms, abbreviations, and acronyms used in oceanography and related fields.
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Current global activity.
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Inventors / Inventions
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The inventors Hall of Fame is searchable for biographical material on American inventors; entries inlcude an image of the inventor and patent numbers. There is also information on the actual museum in Akron, Ohio, and on invention camps and other programs.
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This site hosts a forum for inventors and offers a great selection of related links and resources in all areas of interest to inventors.
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This Smithsonian site provides exhibits, programs, educational outreach, references on the history of invention, and links to other websites
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Life Sciences
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Biology
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An emerging online reference and research tool that aims to document all the species known to humanity. The resource is being built by interactive contributions taken from Google Search, Wikipedia, and interested people. The site is overseen by experts editing the material.
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UCMP's online resources provides materials on phylogeny, climate change, environmental change, science and evolution, as well as educational materials at the university, K-12, and general interest levels.
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Botany
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California flora data.
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Ask a plant expert. Los Angeles County Arboretum and Botanic Garden's expert staff are available to answer questions by phone or by email.
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United States Department of Agriculture Natural Resources Conservation Service.
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Zoology
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Information on habitat conservation, threatened & endangered species, wildlife programs.
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Comprehensive animal information site. Includes zoo information.
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Information about U. S. threatened and endangered animal and plant species.
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Dissect a frog without having to touch one.
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Measurements / Mathematics
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Many methods, comparisons and examples.
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“The web’s most extensive mathematics resource”. A comprehensive, and interactive mathematics encyclopedia intended for students, educators, math enthusiasts, and researchers.
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Time Zones / Tides / Sunrise / Sunset
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View a month or year calendar for any year from 1 to 10000 A.D. All leap years and calendar changes are accounted for.
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Current time for U.S. time zones, also includes information about timekeeping history under Time Exhibits.
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Current and 4-day predictions. Some historic information.
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Gives the current times for locations world-wide.
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Weather & Meteorology
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Ten-day forecasts. Includes local and national coverage.
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National Oceanic and Atmospheric Administation
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Breaking Weather, Tropical Update, U.S. City Forecasts, International City Forecasts, Maps, and Travel Wise.
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