The self-healing antitank minefield is an innovative system developed by the Defense Advanced Research Projects Agency (DARPA). It employs intelligent, mobile mines that can rearrange themselves to repair any breaches in the field. This forces the enemy to destroy a much greater percentage of the total mines, rather than simply clearing a narrow path. The project's Web site has considerable material on the mines' operation, including a very illustrative multimedia demonstration. There are also b
Red Gold: The Epic Story of Blood
This Web site is the online companion to the PBS television series "Red Gold: The Epic Story of Blood," which aired June 2002. This extensive Web site offers a detailed look into the biology of blood and the "scientific developments that contributed to society's understanding and use of blood." Engaging feature articles make up the bulk of this site, with the addition of video clips from the television series, an education section with lesson plans and a discussion guide, a glossary, relevant li
PerfectXML is a great place to get started with using XML or learn about advanced applications and new XML technologies. The free library is probably the most valuable source of information on the site. Over 100 sample chapters from numerous books can be viewed, covering a wide range of XML topics. There are also links to XML editors, conversion tools, and many other software resources. Some are free, others have a free trial version, and others are only available in commercial versions. Tech ne
"What Clones? Were Claims of the First Human Embryo Premature?"
This is a Scientific American article that argues that the results of the first human cloned embryo are misleading.
Surgical Robot Competition: Introducing Engineering in Medicine to Pre-College Students
This paper was introduced at the annual conference and exhibition of the American Society for Engineering Education in June 2002. It was presented by a group of students and a professor from John Hopkins University, who each specialize in different areas of engineering and computer science. They propose a method for integrating "off-the-shelf robotic technology with current real-world engineering challenges" to teach secondary school students about robotics and its applications in medicine. This
Predicting Invasions of Nonindigenous Plants and Plant Pests
This Web site contains the free book Predicting Invasions of Nonindigenous Plants and Plant Pests provided by the National Academies Press. Compiled by the US Board on Life Sciences and the Board on Agriculture and Natural Resources, this 194-page book explores the difficulties in predicting the immigration and impact of exotic species. Researchers active in this field may find this free resource of use.
ANSTO: Australian Nuclear Science and Technology Organisation
The Australian Nuclear Science and Technology Organisation (ANSTO) "is responsible for delivering specialised advice, scientific services and products to government, industry, academia and other research organizations." Researchers can learn about the Organization's ion beam analysis, accelerators, environmental systems, and additional facilities, capabilities, and services. The website offers pdf files of the organization's annual reports, news flashes, and media releases. Individuals can learn
Curtin University of Technology: Physics Research
This website presents Curtin University of Technology's applied physics research primarily in the areas of isotope science, remote sensing, materials research, and marine science and technology. Researchers can discover the University's collaborative efforts in projects to determine the age of Western Australian rocks and minerals, the concentrations of impurities in the Antarctic ice, and other isotope science research. Students can find out about educational opportunities covering remote sensi
From the University of Illinois, Professor Stanley Maloy and Assistant Professor Rob Edwards' Web site Salmonella.org is dedicated to the study of the Salmonella bacteria genome. The site offers news and information on the bacteria's various strains, including everything from tips on preventing the infection to links to genomic sequencing data. Any Salmonella researcher or enthusiast will find this uncluttered and straightforward compilation useful.
University of Illinois at Urbana-Champaign: Computational Astrophysics: Digital Demo Room
This University of Illinois at Urbana-Champaign website features four computer simulations to increase the understanding of astrophysics: Disk Galaxy Dynamics, One Dimensional Hydrodynamics, Stellar Structure and Evolution, and Two Dimensional Hydrodynamics. Each simulation offers beginner, intermediate, and advanced modes. At the Stellar Structure and Evolution Simulator link, individuals can find a tutorial describing the basic physics concepts related to the topic along with the interactive m
Earth Science Week
The American Geological Institute organizes Earth Science Week (ESW) each year in October "to help the public gain a better understanding and appreciation for the Earth Sciences and to encourage stewardship of the Earth." The website offers highlights, evaluations, and news clippings of past ESW events. During the months leading up to ESW, users can search for Earth Science events taking place in their area. Teachers can find numerous classroom activities for grades K-12 based in the National Sc
State of the World's Forests 2003
The Food and Agriculture Organization of the United Nations presents this biannual report on the status of the world's forests. Available as a series of downloadable documents, this comprehensive report addresses recent developments in the forest sector such as agricultural expansion and mangrove conversion, conservation and sustainable development, forestry education and other institutional concerns, international policy, and other issues.
Discussions of cyborg technology tend to be relegated to science fiction literature and TV programs like Star Trek. This Topic in Depth looks into current issues and developments in the area of cyborg technology. The first website, from the UC Santa Barbara Department of English, (1) lists a variety of resources on cyborgs, from philosophical articles and literary criticism to current scientific practices. A related area of research is brain-computer interfacing (BCI), which is described on this
Amazing Earth Games: Disasters You Can Play at Home
Another above average offering from Discovery.com, the Amazing Earth Games: Disasters You Can Play at Home Web site does a great job at making learning fun. The interactive activities include: Crumble California, in which users get to see how the continental plates have affected the state; Unleash a Superstorm, which lets you create your very own hurricane; and the Destroy Life on Earth activity, which gives you the power to launch fireballs at our planet and witness the result. A great site for
What's New at Sci4Kids
The Agricultural Research Service (ARS) of the US Department of Agriculture offers its latest set of brief but engaging educational activities for kids in this Web site. The recently added feature, No Horsin' Around With These Tests!, introduces immunological concepts in the kid-friendly guise of a story about horses. Two older features are also available, one on using a biocontrol method to combat dry rot fungus in potatoes and another on mites. While these subjects may not at first appear to b
Vision Systems Design
Vision Systems Design is a magazine that provides comprehensive information and analyses about "machine-vision and imaging components, boards, assemblies, software, and systems." Its online version is free and has many Web-exclusive features available. For example, Back to Basics is a series of technical articles about a certain topic; the February 2003 issue has articles on FireWire interfaces, infrared systems used to increase vehicle safety, and much more. Technology news and industry trends
Fairly Fundamental Facts about Forces and Structures
Students are introduced to the five fundamental loads: compression, tension, shear, bending and torsion.
The Physical Characteristics of Minerals
Offered by Amethyst Galleries, Inc. (an online minerals store), the Physical Characteristics of Minerals Web site offers a detailed description of how minerals are identified. Each page gives good information and examples of a particular characteristic (e.g, color, hardness, cleavage, feel, and taste). Also, on the first page are links to dozens of minerals that are categorized by name, class, interesting groupings, and great localities. These give the class, subclass, group, uses, physical char
The Fields Institute: Lecture Audio and Slides
The Fields Institute for Research in Mathematical Sciences aims to "enhance mathematical activity in Canada by bringing together mathematicians from Canada and abroad, and by promoting contact and collaboration between professional mathematicians and the increasing numbers of users of mathematics." They support research in pure and applied mathematics, statistics and computer science, as well as collaborative projects between mathematicians and those applying mathematics in areas such as enginee
What is Design?
Children between the ages of nine and twelve will be drawn into this site that explores the world of design. It encourages "kids to develop critical viewing, technical mastery, artistic awareness, and practical, just, solutions." Many interactive games and activities are available, allowing users to create their own designs and share them with others. For example, children can design their own watch with a simple step-by-step process, and many watches are featured in a gallery. A wealth of infor