Mercury's surface in "enhanced color," a color scheme created to emphasize color differences. This is not what Mercury would look like to the human eye, but by applying mathematical analysis to images, color differences can be accentuated beyond those visible to a person.
Mount Rushmore National Memorial under construction.
The workers had to endure conditions that varied from blazing hot to bitterly cold and windy. Each day they climbed 700 stairs to the top of the mountain to punch-in on the time clock. Then 3/8 inch thick steel cables lowered them over the front of the 500-foot face of the mountain in a "bosun chair." Despite the dangers, no one was killed during the project.
Otters in Glacier Bay National Park and Preserve, Alaska.
The sea otter population of Glacier Bay has increased dramatically in the past 20 years. Ecologists consider sea otters a keystone species here. Otters consume vast quantities of clams, urchins, crabs, and other invertebrates and their presence creates ripples through the ecosystem. NPS photo.
Every day someone like you becomes a wildland wildfire fighter, a teacher, a trail-builder, a museum curator, or a park ranger. Discover your opportunities in national parks. Come to play. Come to learn. Come to serve. Develop your environmental leadership skills. Find a job. Be the next generation to preserve and protect these great places.
With more than 80% of Americans living in urban areas, urban parks are more important than ever. The father of American landscape architecture, Frederick Law Olmsted, said of urban parks:
It is one great purpose of the Park to supply to the hundreds of thousands of tired workers, who have no opportunity to spend their summers in the country, a specimen of God's handiwork that shall be to them, inexpensively, what a month or two in the White Mountains or the Adirondacks is, at great cost, to those in easier circumstances.
Science Friday For 25 years Science Friday has introduced top scientists to public radio listeners. It also produces digital videos, original web articles, and educational resources for teachers and informal educators. All work is independently produced by the Science Friday Initiative, a non-profit organization dedicated to increasing the public’s access to science and scientific information. Public Radio International (PRI) distributes the radio show, which you can catch on public radio stations across the U.S.
Reference Sources on Science
AGRICOLA Database of citations to the agricultural literature created by the National Agricultural Library and its cooperators.
Chemistry Central Chemistry Central is a new service publishing peer-reviewed open access research in chemistry, from BioMed Central.
Darwin Manuscripts Project Sponsored by the American Museum of Natural History Library. The site includes sources from 17th century to the present and encompasses the history of evolution as a scientific theory with deep roots and broad cultural consequences. For more on Charles Darwin, see also the Complete Works of Charles Darwin, assembled by the University of Cambridge
Encyclopedia of Earth A fully searchable collection of articles written by scholars, professionals, educators, and experts who collaborate and review each other's work.
GEOSCAN Database Earth Sciences Information Centre (ESIC) of Natural Resources Canada, which has also made available the RESORS (REmote Sensing On-line Retrieval System) database of publications from 1950 to 1995.
Kimball's Biology Pages By John W. Kimball, a retired biology professor at Tufts University. The pages represent an online biology textbook.
Public Library of Science PLoS is a nonprofit organization of scientists and physicians committed to making the world's scientific and medical literature a freely available public resource.
PubMed Central "Free online access to the full text of life science research articles"
Quakeline Database Covers earthquakes, earthquake engineering, natural hazard mitigation, and related topics
ScienceCinema The source for U.S. Department of Energy multimedia. ScienceCinema contains videos produced by the DOE National Laboratories and other research institutions. It utilizes innovative, state-of-the-art audio indexing and speech recognition technology, allowing you to search for specific words and phrases spoken within video files. You can then easily access the exact point in the video where the words were spoken by the presenter.
Science Reference Guides Produced by the Library of Congress Science, Technology and Business Division. The guides include books, articles, and web sites.
Science Tracer Bullets Online Produced by the Library of Congress Science, Technology and Business Division. The tracer bullets contain books, articles, and web sites.
Scitable Created by Nature Education for Biology and Genetics, this site offers students and teachers alike a wealth of information, learning tools, and interactive activities on genetics, cell biology, and ecology, scientific communication and career counseling. Quick tutorials offer short review articles with links to deeper content elsewhere on the site. Full courses are in the Learning Paths section, including topics such as cancer, genetics, and biotechnology. Some functions, such as blogs and discussion forums require registration.
ToxNet Portal for searching U.S. government databases on toxicology, hazardous chemicals, environmental health, and toxic releases; provided by the National Library of Medicine.
UNEP: Atlas of Our Changing Environment This interactive atlas from the United Nations Environment Programme describes natural and human-made changes over the last 30-40 years. The US Geological Survey, NASA, and the University of Maryland collaborated on the design and content, in partnership with Google.
Wallace Online A searchable collection of the writings of British naturalist Alfred Russel Wallace (1823-1913), that emphasizes evolutionary biology and biography. There are scanned images of Wallace's 22 books and book chapters, and more than 900 articles. The website includes all of Wallace's original published works as well as transcripts of the texts.
The Why Files The mission of The Why Files is to explore the science, math and technology behind the news of the day. The Why Files produces a new story each week, posts a biweekly column by science reporter Tom Siegfried, and offers other materials for educational use. It is based at the University of Wisconsin-Madison.
EnviroLink Links to thousands of environmental resources on the Internet.
Environmental Research Web Created to provide an international forum for scholarly discussion and analysis of environmental issues and policy. News, opinion, and research highlights sections include links to related Web sources and open-access articles. Includes the open-access journal Environmental Research Letters.
ScienceResearch.com This Web search engine is designed to search more than 300 science-related Web collections, including Directory of Open Access Journals, E-Print Network, OAIster, NTIS, PubMed, Scholarpedia, ScienceDirect, Science.gov, and many science journals.
WorldWideScience.org Global science gateway connecting you to national and international scientific databases. WorldWideScience.org accelerates scientific discovery and progress by providing one-stop searching of global science sources.