Earthguide is an educational resource for students and teachers developed by the California Space Institute at Scripps Institution of Oceanography and the University of California San Diego. Features include in-depth stories, brief topics, and news -- all related to a variety of oceanic and atmospheric science subjects. The section of links and resources is quite valuable, with a large number of links organized by topic, many with brief descriptions.
Laboratory of Michael Blades
Located within the Chemistry Department at the University of British Columbia, the Laboratory of Michael Blades studies the "development, characterization, and application of optical and mass spectroscopic methods for chemical analysis." Visitors can download posters to learn about the group's work involving two and three laser ion trap mass spectrometry and fluorescence spectroscopy. The website discusses the group's creation of atmospheric pressure plasma on a chip as a new way of forming an a
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
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
The Complete Morris's British Birds 1891
Individually produced by Ash Midcalf, this Web site contains digitized images from the Reverend Francis Orpen Morris's A History of British Birds, published in 1891. Artist-naturalists like Morris and Audubon created painstakingly true-to-life depictions of the planet's flora and fauna in the days before reliable photography. Visitors to this Web site can browse through pages of thumbnails, choose from the complete list of images, or use the search feature to view any of the 394 prints available
Citrus Canker: The Pathogen and Its Impact
This Web site, currently featured on the home page of the American Phytopathological Society, contains a research report regarding the Asiatic citrus canker that has had devastating effects on Florida's citrus industry. The report, in a journal article format, thoroughly relates the natural history and current status of the disease, as well as detailing the methods and results of the (primarily genetic) experiments conducted in this study. One of the most appealing features of this Web site is t
Drought Resources and Information
The Drought Resources and Information Web site is maintained by the Utah State University Extension Water Resource Issues Team, which was created to "address information needs related to water conservation and quality in agriculture and urban settings." The site provides information on several subjects including landscape irrigation, agricultural water uses, home water conservation, drought and weather monitoring, and more.
Consensus CoDing Sequence Database
The Consensus CoDing Sequence (CCDS) Database "project is a collaborative effort to identify a core set of human protein-coding regions that are consistently annotated and of high quality. The long-term goal is to support convergence toward a standard set of gene annotations on the human genome." CCDS project collaborators include the National Center for Biotechnology (NCBI), European Bioinformatics Institute (EBI), Wellcome Trust Sanger Institute (WTSI), and University of California, Santa Cruz
Paul Bourke of the Astrophysics and Supercomputing department at Swinburne University of Technology is the author of this massive resource on fractals and chaos. He gives examples of many different kinds and classes of fractals, including the Mandelbrot set and various attractors; and brief explanations accompany each one. A substantial introduction to fractals covers the underlying principles and connection to chaos theory. Many stunning, high resolution fractal image galleries show elaborate p
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
Originally developed at the University of Minnesota, personal rapid transit (PRT) systems are now being explored further by a spin-off company called Taxi2000. The system is designed to operate on raised guideways and is set up in grid formations that can easily be expanded. While still in the planning stages, a great deal of information is presented on the Taxi2000 homepage. Many publications can be downloaded, including detailed descriptions of the Taxi2000 concept and a projection for ridersh
Cadbury: Maths in the Factory
What kid can resist chocolate? Certainly not many, and this site from the Cadbury Company uses chocolate to entice children to learn about mathematics. Users must apply their knowledge of basic math concepts to solve different problems in the Cadbury factory. The interactive scenarios, which are guided by a group of chocolate cartoon characters, let children practice their skills in arithmetic, measurement, interpretation of data, and geometric objects. There are also sections for teachers and p
Bells in Your Ears
Does sound travel better through solids or gases? This material is part of a series of hands-on science activities designed to arouse student interest. Here the student hangs a metal fork from a pencil using string, and then strikes the fork while the eraser end of the pencil is in his or her ear. The activity includes a description, a list of science process skills and complex reasoning strategies being used, and a compilation of applicable national science standards for grades K-12. Also provi
Examine the sun at different wavelengths
This Earth science resource enables students to observe and compare the sun's appearance under different types of electromagnetic radiation. Students are instructed to move the cursor across the spectrum to see images of the sun under radio and microwaves; infrared, visible, and ultraviolet light; and gamma rays. Each image includes a label that indicates the portion of the electromagnetic spectrum, the wavelength in angstroms and meters, and the layer of the sun in view. Copyright 2005 Eisenhow
This page contains links to one pagers on historical instruments of astronomy with photos of the following : Astronomy Slides, Celestial Globe, Cometarium, Globe, Gregorian Telescope, Kepler's Laws Demonstration, Orrery, Planetarium, Planisphere, Stereoscopic Pictures of the Moon, Tellurian, and Transit.
Ice Cube of Exotic Microbes
This article describes a permafrost subglacial lake discovered beneath Antarctica. The lake offers scientists a chance to test their sterile drilling techniques before exploring elsewhere in search of exotic microbes. Techniques that avoid contaminating a drill site with microbes, suggests the author, would prove useful for future drilling into Mars polar caps in search of life.
The baby's brain : infant vision
In this feature, the user explorers how a baby's sense of sight develops. By dragging a slider bar to each of six different age markers, the user can see how the same image looks for babies as they get older. There is also a paragraph-long explanation of vision at each of the six ages shown: newborn, 1 month, 2 months, 3 months, 6 months, and adult. These explanations reveal what a baby can and cannot see at each age. They also discuss how a baby's brain and eyes mature, providing improved focus
This is a simple activity to visualize a communication system. In order to do this the students encode, decode, transmit, receive and store messages. They will use a code sheet and flashlight for this process. They will also maintain a storage sheet from which they can retrieve information as and when it is required.
Box Plot 2
This activity allows the user to explore maximum, minimum, median, upper quartile, lower quartile and outliers while learning how to draw box plots.
Factoring Special Products
Choose the correct steps to factor a polynomial involving perfect-square binomials, differences of squares, or constant factors. Use the feedback to diagnose incorrect steps.