Oak Ridge National Laboratory Distributed Active Archive Center
The Oak Ridge National Laboratory Distributed Active Archive Center for Biogeochemical Dynamics "is a source for biogeochemical and ecological data useful for studying environmental processes. These data have been collected on the ground, from aircraft, or by satellite or have been generated by computer models. The extent of data ranges from site-specific to global, and duration's range from days to years." Information can be searched by a wide range of criteria that include key word, timeline,
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Problems to Enjoy
Problems to Enjoy presents an enormous selection of mathematics problems for middle and high school students. Teachers will find it especially useful; divided into four categories and three grade levels, the problems are easily searchable. Eventually, the site's creators hope to "build up a comprehensive library of problems in a format that is simple to access, download and customize." The collection is already quite substantial. Number problems, algebra, geometry, and statistics are the main to
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Classroom Antarctica
As part of the Australian Antarctic Division, Classroom Antarctica gives dozens of downloadable Adobe Acrobat files that allow students to discover this unique continent. Subjects include the history of the scientific research undertaken on Antarctica, surviving its climate, its biological ecosystem, the lands physical characteristics and affects on climate, and much more.
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The New Zealand Geographic Place Names Database
The New Zealand Geographic Place Names Database, offered by Land Information New Zealand, contains more than 40,000 official and non-official place name entries from the mainland of New Zealand. Searches can be done by partial name or by location; results yield a description of the place (such as a beach or hill), its district, and its latitude/longitude. Additional searches can also be done to include all place names surrounding an area. Although intended to assist in the production of core top
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Fibre Optics Technology
As part of the Flexible Learning on the Internet initiative, this Web page gives a very descript overview of fiber optics technology. The site covers everything from fiber optics manufacturing to its technological capabilities. Several basic equations that govern fiber optics properties and operation are mentioned, but the material is not overly mathematical. It explains how light travels through the cable as a signal and how a fiber's structure effects the propagation of light. Three video clip
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The World Information Network on Biodiversity
The World Information Network on Biodiversity (REMIB) is organized and provided by Mexico's National Commission for the Knowledge and Use of the Biodiversity. REMIB is a network of shared biological information databases from research centers in Mexico, the US, Costa Rica, and Spain. The databases contain "curatorial, taxonomic, ecological, cartographic, bibliographic, ethno-biological type, use of catalogues on natural resources and other subject matters." Currently, REMIB gathers information o
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SuperWASP: Wide Angle Search for Planets
"SuperWASP is the UK's leading extra-solar planet detection program comprising of a consortium of seven academic institutions." The website presents how SuperWASP works through clear text and helpful images. Researchers can find technical information on the Torus Fork Mount, CCD Cameras, and the Enclosure. Students and educators can discover the common techniques the Program uses to detect exoplanets such as pulsar timing and photometry. The website offers a gallery of images, the latest Program
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The Center for Watershed Protection
The Center for Watershed Protection (CWP) "provides local governments, activists, and watershed organizations around the country with the technical tools for protecting some of the nation's most precious natural resources: our streams, lakes, and rivers." The CWP website offers a number of online, open-access resources, including technical reports, case studies and watershed assessment protocols. Users will find detailed guidelines for measuring watershed vulnerability, assessing stream quality,
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The Online Books Page
Hosted by the University of Pennsylvania Library, the Online Books Page Web site "facilitates access to books that are freely readable over the Internet...and aims to encourage the development of such online books, for the benefit and edification of all." The over 18,000 listings can be searched or browsed by author, title, and subject, of which every major physical science subject is represented. Each listing is linked to an outside Web site, making its availability unpredictable, but the shear
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Rewind, Repair, Replay: Three R's to Dependability
One of the most important features in current software applications is the undo command, which allows users to revert to previous states in their documents. A relatively unexplored concept involves system undo, a method of restoring settings in a system that were accidentally changed by the operator. This research paper discusses "a model of undo that matches the needs of human error recovery and retroactive repair." The authors begin by explaining the growing importance of such a mechanism and
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Revolutionizing Science and Engineering through Cyber-Infrastructure
An expert panel from National Science Foundation's (NSF) Advisory Panel on Cyber-Infrastructure released their final report in January 2003. The report seeks to "evaluate current major investments in cyberinfrastructure and its use, to recommend new areas of emphasis relevant to cyberinfrastructure, and to propose an implementation plan for pursuing them." Several key points are made that promote scientific and engineering research and education through technology. The NSF panel argues that rece
Author(s): Messina, Paula.,Wright, Margaret H.,Ostriker, J. P

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Three Clouds Activity
The University of Michigan's educational site called Windows to the Universe (last mentioned in the January 6, 1999 Scout Report for Science and Engineering) has added many new lessons to their content. Highlights of these include two activities centered around cloud formation. The Three Clouds uses items such as a jugs and jars, a plastic bag, an aquarium thermometer, and an overhead projector to explore how clouds form and the relationship between the hydrosphere and human activity.
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IPM Super Sleuth
Integrated Pest Management is an agricultural approach which works to minimize the use of pesticides. This interactive, kid-friendly website was created by the IPM Institute of North America to teach students in grades one through seven about Integrated Pest Management (IPM). The site utilizes a combination of word searches, crossword puzzles, matching and concentration games, and quizzes to introduce IPM concepts. The complete 114-page IPM Super Sleuth Document is also available for download. S
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TriNet
TriNet is a multi-functional seismic network for earthquake research, monitoring, and computerized alerts. The collaborative project among governmental and educational institutions hopes to "create a better, more effective real-time earthquake information system for Southern California." The main focus of the site is the up-to-date availability of earthquake occurrences shown on various interactive maps of California. Other features available include seismic data, emergency response information,
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The Virtual Terrain Project
The Virtual Terrain Project (VTP) homepage has a wealth of information about three dimensional environment rendering, as well as links to many different research efforts and papers about the subject. The project's aim "is to foster the creation of tools for easily constructing any part of the real world in interactive, 3D digital form." Several subtopics are addressed, including plant modeling and realistic ground detailing and texturing. An interesting focus is on cultural aspects of terrain re
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ECOTOX Database System
The US Environmental Protection Agency (EPA) provides this database of chemical toxicity. Three individual EPA databases are combined to provide information on chemical-specific toxicity values for aquatic and terrestrial plants and animals. Users can search for research reports by chemical name, species name, or environmental effect. The site has informative help files and browse features. This Web site is useful for evaluating industrial chemicals or for environmental assessment research.
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Lotto or Life: What Are the Chances?
Students are naturally inquisitive about space science and the topics surrounding the existence of intelligent life in other parts of our Universe. Tapping into this curiosity, this lesson uniquely combines the concepts of astronomy and probability to have students use inquiry, problem solving, reasoning, and communication skills to compare winning the lottery with the likelihood of intelligent life existing elsewhere in the Universe. The site contains all of the information and materials needed
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If using the HEASARC service made a significant contribution to a research project, please make the following acknowledgement in any resulting publication: This research has made use of data obtained

Units and Cylinder Volume
Find the volume and surface area of a cylindical storage tank with a radius of 15 feet and a height of 30 feet.
Author(s): Math Forum,Dan

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The Nobel Prize in Chemistry
The first hundred years of Nobel Prizes for Chemistry give a beautiful picture of the development of modern chemistry. The prizes cover the whole spectrum of the basic chemical sciences, from theoretical chemistry to biochemistry, and also a number of contributions to applied chemistry.
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Compound Independent and Dependent Events
Compare the theoretical and experimental probability of a compound independent event by drawing colored marbles from a bag. Record the results of successive draws with or without replacement of marbles to calculate the experimental probability.
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