Base Valued Numbers
Most basic math classes are taught using the decimal number system, but the concept of number systems that use a base value other than ten is rarely mentioned. This educational website attempts to shed light on this overlooked theme by illustrating some common number systems that have practical value or historic significance. The material is very well presented, helping the reader to understand how numbers are represented in binary, octal, hexadecimal, and many other number systems. It also demo
Quaternary Studies
First, the Irish Quaternary Association (IQUA) website publicizes its aim "to promote Quaternary studies in Ireland through its publications, and the organization of field meetings and conferences" (1). Visitors can learn about the importance of quaternary studies as well as find out the latest news and upcoming meetings. At the second website, the University of Wisconsin-Madison describes the current and recent studies dealing with "basic and applied problems in glacial geology, surficial geolo
The Common Cold
When winter rolls around and we begin to spend more time indoors, the common cold becomes an unfortunate reality for many of us. But for something as common as the cold, misconceptions about it are remarkably common as well. The following collection of Web sites provides an in-depth look at the cold and the cold virus.The first site (1) comes from the Common Cold Care Center of Cardiff University in Wales, and offers a thorough and highly readable introduction to the common cold, including secti
Wayne's Word: Lemnaceae
This instructional website on Lemnaceae--aka the Duckweed family--was created by Professor Wayne P. Armstrong of Palomar College. The informative site contains concise text sections accompanied by excellent images and diagrams of duckweeds. Site visitors will also find A Key to the Genera of Lemnaceae, a Worldwide Lemnaceae Species List, and descriptions of Species of Lemnaceae In Western North America. This site is housed within Armstrong's larger website, Wayne's Word: An Online Natural Histor
Addison Wesley Longman: Internet Projects for Elementary Statistics
This educational site is suggested as an extension to a statistics text book, but the material is also beneficial as a stand-alone resource. It uses data sources from many other Internet sites to illustrate statistical concepts. In one chapter, for example, trends in the rise of women in the work force are used to show how to analyze wage differences between males and females. In all, there are fourteen chapters that use a similar approach to teach the basics of averages, histograms, confidence
Plants in Motion
Roger P. Hangarter of Indiana University's Department of Biology has created this wonderful collection of time-lapse photography that allows us "to see the movements of plants and clearly demonstrates that plants are living and capable of some extraordinary things. " The videos available show a broad range of plant growth phenomena, including germination, circadian responses, phototropism, and much more. The movies are fun to watch in and of themselves, but don't miss out on the informative desc
Exploring the Future of Learning
ThinkQuest is a worldwide collaboration of students and educators that explores "youth-centered learning on the Net." A conference held by ThinkQuest in July 2002, called Exploring the Future of Learning, focused on emerging technologies and ideas to improve global education methods. This Web site presents several articles about the conference that were written by student journalists who attended the event. The articles highlight technology trends and new innovations, as well as the experiences
Imagiverse: Engineering and Technology
Imagiverse has been developed by a team of people inspired by former students of Montessori School of Corona, Calif., who "believe that imagination is the key to learning." The group offers here a collection of interviews with people who work in various fields, including engineering and technology, as one way to "spark the flame that will lead young and old to pursue learning as an adventure through imagination." The Activities section also includes some lesson ideas such as a robotics project a
Bridge Building: Art and Science
This site is one of the most substantial, comprehensive sources on the Internet dedicated to bridge design and history. It has an incredible list of sections from which to choose, and each describes a particular bridge type or characteristic. Several pictures are included from all over the world that give examples of arch, truss, suspension, and many other bridge designs. There are also explanations of forces that act upon bridges, as well as what issues are considered when choosing the kind of
Nutrition Café
Developed jointly by the Pacific Science Center and the Washington State Dairy Council, Nutrition Café offers students three interactive games to explore the world of nutrition. The first game, Nutrient Sleuth, is an entertaining hangman-style game where students try to discover what nutrients different characters are missing based on clues and letter guesses. Another enjoyable offering is Grab A Grape, a Jeopardy-style game where site visitors try to match nutrition-related questions with answ
Puff - A Volcanic Ash Tracking Model
This website, provided by the University of Alaska and Geophysical Institute, explains the Puff-A Volcanic Ash Tracking Model project, which uses representative ash particles from volcanoes to study the advection and diffusion of ash within the atmosphere. After learning about the history of the project, visitors can find animations and images of the model's predictions for various volcanoes as well as the technical documentation. The website offers downloads of the latest version of the model,
Atmospheric Variables Plotting Page
The Atmospheric Variables Plotting Page is part of the larger Climate Diagnostics Center Web site (last mentioned in the December 6, 2000 Scout Report for Science & Engineering ), which allows users to freely plot available data online. Inputs include date (going back to 1980); variable, such as geopotential height, eddy height, relative humidity, vector winds, and air temperature among others; analysis level, plot type, map domain, as well as several formatting options. Once obtained, the plots
The Platypus: A Very Special Australian
The Australian Platypus Conservancy, "an independent organisation dedicated to conserving the platypus and its freshwater habitats," offers this informative Web site about "one the world's most unusual animals." Visitors can learn about platypus biology and ecology in the Platypus Fact File; find out how to become involved in platypus conservation efforts; read the latest platypus-related news in Ripples, the organization's newsletter; and more. The Platypus Fact File is particularly comprehensi
Igneous, Metamorphic, and Sedimentary Rock Info
Igneous, Metamorphic, and Sedimentary Rock Info, is part of the University of British Columbia Introduction to Petrology course Web site. Visitors can learn the basics of petrology, and the specifics about each individual rock type. For example, the sedimentary rock page gives definitions, normal constituents, limestone and dolostone facts, and siliciclastic rock information. One of the highlights of the site lets users go through the process of rock classification by determining its grain size,
Oceanography Distributed Active Archive Center
Part of the Earth Observing System Data Information System, the Physical Oceanography Distributed Active Archive Center is responsible for archiving and distributing data relevant to the physical state of the ocean. The data, which are intended for use in oceanographic and other interdisciplinary scientific research, is freely available. Products include sea surface height, ocean wind, and sea surface temperature data. Recently added datasets include BYU High Resolution Images of ERS Sigma0 Meas
EDUCAUSE Quarterly
EDUCAUSE Quarterly "is a practitioner's journal about managing and using information resources in higher education." It deals with many issues about implementing information technology (IT) practices as learning tools. The material is suitable for anyone interested in IT applications, but is particularly useful for those who work in computer services or other IT organizational positions. This site offers full text articles from the journal at no cost, and several back issues can be viewed as wel
2001 Annual Energy Review
The US Department of Energy's Energy Information Administration (EIA) describes itself as providing policy-independent data, forecasts, and analyses to promote sound policy making, efficient markets, and public understanding regarding energy and its interaction with the economy and the environment. The EIA Web site provides many informational pages and publications including the newly released 2001 Annual Energy Review. The report covers fossil fuels, nuclear electricity, renewable energy, and t
Captology: Computers as Persuasive Technologies
"The Stanford Persuasive Technology Lab creates insight into how computing products -- from websites to mobile phone software -- can be designed to change what people believe and what they do." This unusual field of study is called captology, and the subject is explored in detail on the lab's homepage. The Key Concepts section provides a brief overview of captology and links to another page with nine topic papers published by researchers at the lab. In a series of examples demonstrating how comp
Chinese Space Program
China will soon make history by sending the first Chinese man to space. Scheduled for sometime in 2003, it will be the first step toward China's highly ambitious plans for space exploration.The China National Space Administration Web site (1) has a detailed description of the country's space policy. Aerospace China, a journal published online by the administration, has information on space development plans and other issues. The history of China's space program is recounted by the online Encyclo
Idaho State University: Biology Resources for Active Learning
The Department of Biological Sciences at Idaho State University offers this website as part of a project "to enhance teacher preparation in the sciences by emphasizing inquiry and experimental approaches to science teaching." The site offers one or two lesson plans (mostly at the high school level) for the following subjects: the cell; molecular basis of heredity; biological evolution; interdependence of organisms; matter, energy, and organization of living systems; and behavior of organisms. Mo
