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Science & Technology

Site contains a list of meteor showers, observation information, glossary and more.
Aeronautics and space research information.
Old Farmer's Almanac lists rise and set times for the sun, moon and planets, eclipse dates, and more.
Everything about planets in our solar system.
Includes Acronym database.
Agency for Toxic Substances and Disease Registry's alphabetical index of toxic substances and diseases.
Chemistry - Unit Conversion to X-ray Interactions with Matter.
Freie Universität Berlin, Chemistry Department site.
Complete table of elements, atomic weights, etc.
Information from the Environmental Protection Agency on toxic substances released in the environment includes State Fact Sheets with facilities and chemicals listed.
Astro-Physical Units to Wave Interaction & Simulations.
CODATA Internationally recommended values of the Fundamental Physical Constants. Search for value by name (i.e. speed of light).

Specifications, parts & services, museums & clubs for American automobiles (antique, classic, vintage and muscle cars) manufactured between 1910 and 1975.
Provides pricing guides for new and used cars and trucks. Includes road test results, information on recalled vehicles.
Car prices from the National edition.
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.

The U.S. Naval Observatory Astronomical Applications Department provides current and historical data on the sun and moon, eclipses, seasons and more.
Information from Archaeology / Anthropology to Radiation from Martindale's "The Reference Desk."
Life Magazine's slideshow of images (with accompanying text) that showcase the technological innovations that led to today's computer technologies.
Quotations and their source from Archimedes to Wooley.
Covers the failure of the U.S. economy and its gradual recovery, with special attention to the New Deal, as well as the global situation, including the rise of Hitler. The Almanac covers the era in 16 subject chapters. Biographies profiles 29 major figures of the period. Primary Sources features annotated excerpts from speeches, newspaper and magazine articles, literature, and other documents from the period.
Find information on digital citizenship, information technology and social media.
Advice on proper setup and use of office furniture and devices, information about different ergonomic products, instructions for stretches, possible causes for different types of discomfort, sections on mobile ergonomics and ergonomics for children, and free newsletters.
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.
Information on current events, the arts, science, health, people, government, history, sports and more, with easy, subject-based search tree to help find just what you need.
An evolving collaboration of scientists, artists, and the members of the Net Generation. They host contests, discussion groups, and live Web-conferenced presentations.  Visitors can share their thoughts, creations, and experiences relating to Earth's Moon through MyMoon groups on Facebook, YouTube, and Flickr. 
More than 4,000 free PDF versions of books published on sciences, engineering and medicine are available.
Weather forecasts, heavenly details, sun, moon and planets, rise and set times.
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.
Resources written with the needs of students and patrons in mind spanning many scientific fields.
Index to help identify and locate electronic schematics repair documentation by number.
Science fair project ideas.
Provides the necessary requirements and resources to complete a science project. Information supplied by the Internet Public Library.
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.
The gateway to reliable information about science and technology from across Federal government organizations. Agencies covered are the Departments of Agriculture, Commerce, Defense, Education, Energy, Health and Human Services, Interior; Environmental Protection; National Aeronautics and Space, and National Science Foundation.
Recorded interviews with leading figures; images and descriptions from the museum's exhibition; archival materials and links to more.
SRS information on 14 periodic surveys.
Everyday science questions and answers.
Traveler databases offer magazines, books, encyclopedias, and other resources to all Arkansas residents. Research current events, science, business, health, notable people, hobbies, and much more from your library, school, home or office.  Ask how to access Traveler at your college/university, public library or school.
People in History, Events in History, Maps & Flags, Timelines, Science Diagrams, Science Projects and Career Ideas. For the elementary and middle school students.

10,000 years of volcanic eruptions. Keyword search, alphabetic and geographic indexes.
Terms, abbreviations, and acronyms used in oceanography and related fields.
Current global activity.
Caltech site. Latest seismographic information. Includes maps and historical information.
United States Geological Survey latest earthquake information.

Free web site by Biosis offering resources for the life sciences community. Searchable by organism, subject and geographical region.
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.
University of California, Berkeley Museum of Paleontology collection that provides material on phylogeny, geology and evolution, as well as educational materials at the university, K-12, and general interest levels.
Features comprehensive research articles and notes in all segments of plant sciences.
Encyclopedia of plants and flowers
United States Department of Agriculture Natural Resources Conservation Service.
Information on habitat conservation, threatened & endangered species, wildlife programs.
Information about U. S. threatened and endangered animal and plant species.
Comprehensive animal information site. Includes zoo information.
Dissect a frog without having to touch one.
Includes the Endangered Species Act and policies, information about listed and candidate species, fact sheets, success stories and more.

K-12 math students can submit a math question that volunteer "doctors" will answer via e-mail throughout the day during the academic year. A searchable archive is arranged by grade level.
Basic Math Calculators, Unit Conversion Calculators, Slide Rule, Arabic / Roman / Mayan, Abacus, Knot Theory, Linear Equations, Logarithms, Math Animations, Trigonometry, and Rational Numbers.
Many methods, comparisons and examples.
The Khan Academy is a non-profit organization that offers 1000+ videos on YouTube covering everything from basic arithmetic and algebra to differential equations, physics, chemistry, biology and finance .
Provides math tables from the simplest to most complex branches of the field. There are also related links including an English-Spanish Math Dictionary.
Searchable indexes to biographies, history topics, and famous curves. Also graphic chronologies, birthplace maps, mathematicians of the day, and anniversaries for the year.
If you are stumped by word problems involving percents, this site can help. Simply select the word problem form which resembles your problem, fill in the blanks, and click "Solve."
“The web’s most extensive mathematics resource”. A comprehensive, and interactive mathematics encyclopedia intended for students, educators, math enthusiasts, and researchers.

View a month or year calendar for any year from 1 to 10000 A.D. All leap years and calendar changes are accounted for.
Current time for U.S. time zones, also includes information about timekeeping history under Time Exhibits.
Current and 4-day predictions. Some historic information.
Gives the current times for locations world-wide.

The EPA Climate Change Web site has four main sections on climate change issues (Science, U.S. Climate Policy, Greenhouse Gas Emissions, and Health and Environmental Effects, and another section on "What You Can Do" to reduce your contribution.
Examines the philosophical and ethical issues underlying contemporary and historical environmental issues, policies, and debates. Covers concepts, institutions, topics, events and people, including global warming, animal rights, environmental movements, alternative energy, green chemistry, industrial ecology, and eco-sabotage.
One of the most important climate organizations, IPCC includes useful reports, such as CO2 Capture and Storage and Mitigation of Climate Change.
This site, from the National Oceanic and Atmospheric Administration (NOAA), describes itself as the "World's largest collection of climatic data." It includes comparative climatic data, wind data, and storm data.
National Oceanic and Atmospheric Administration
Breaking Weather, Tropical Update, U.S. City Forecasts, International City Forecasts, Maps, and Travel Wise
This U.N. agency focuses on "Earth's atmosphere, its interaction with oceans, the climate it produces, and resulting distribution of water resources."  It provides an international perspective on climate change through updated news, weather forecasts, and global initatives.