Defending Childhood and Youth: A Public Health Approach to Ending the Cycle of Violence
In 2010, U.S. Attorney General Eric Holder announced the launch of the "Defending Childhood" initiative to help prevent children's and young people's exposure to violence, mitigate its effects and put an end to cycles of violence that undermine the public's health. During this Forum webcast, he described his vision for this initiative and its progress so far. Date May 6, 2011
The first Web site related to lubrication is presented by SynLube.com and its relevant page is entitled Basics: What You Need to Know About Lubrication (1). Visitors can learn why lubrication is so important to mechanical devices, why oil needs to be changed in your car, what synthetic oils can do, and more. Although the site is for a manufacturer of synthetic oil, there is a good amount of interesting physical science information. The second site provides an educational resource activity by The
Harvard University: Harvard@Home Videos of Lectures
The Harvard@Home website lets visitors download video footage from research, teaching, and public addresses at Harvard (for more see Scout Report Dec 5, 2003). This 45-minute video features Professors Benedict H. Gross and William A. Stein taking "a modern approach to the ancient mathematical problem of solving cubic equations." A glossary of terms, slide images and audience Q&A are also included.
National Environmental Publications Internet Site
National Environmental Publications Internet Site is maintained by the Environmental Protection Agency (EPA) and contains a database of over 9000 documents that have been published by the EPA. Searches can be attempted by keyword or by publication title, which should help make finding a particular document easy. Once found, the documents can be viewed, printed freely, or ordered directly from the EPA.
BotBall Educational Robotics Program
Botball is a workshop and competition presented by the KISS Institute for Practical Robotics. The program offers hands-on learning in robotics and is "designed to engage students in learning the practical applications of science, technology, engineering and math." Registered teams receive KISS Institute's kit of robotics equipment, but teams must have access to a laptop computer and the Internet. Following a workshop, students are given seven weeks to create a team of robots and a weblog documen
Swedish Museum of Natural History-Department of Vertebrate Zoology: Guide to South American Cichlida
Sven Kullander of the Swedish Museum of Natural History developed the _Guide to the South American Cichlidae_ as "a non-commercial, technical source of information about the systematics, taxonomy and geographical distribution of South American cichlids." The Guide features a Cichlid Names Database containing 469 nominal species and 60 Nominal Genera with search fields for keywords, Genus/Species, Record/Table, Status, and more. The site also offers a phylogenetic tree representing major cichlid
Digging into Minnesota Minerals
The Digging into Minnesota Minerals Web site is part of the larger Minnesota State Department of Natural Resources site. These fun and interesting pages explain how Minnesota came to acquire its most common minerals over geologic time, what the basic types of rocks are, mining history of the state, the geology found in state parks, and much more. Included are basic descriptions, photographs, illustrations, and even educational activities for teachers related to the minerals. This well-designed s
CryptoBytes Technical Newsletter
A free online publication by RSA Security, CryptoBytes generally consists of three or four technical articles on some aspect of cryptography. The latest issue, Spring 2003, addresses the topics of Radio Frequency Identification, public key encryption, and "Side-Channel Cryptanalysis." Each article is presented in research paper format and provides a thorough discussion of the subject. Contributions to CryptoBytes come from corporate research centers and academia. The newsletter is published on a
Tutorial on Balancing Equations
Dr. Yue-Ling Wong of the Wake Forest University Computer Science Department maintains the online Tutorial on Balancing Equations. Students interactively get to choose the types of atoms in a methane, ethane, propane, and ethanol equation; enter the atom counts for the equation and the product; and then attempt to balance the equation. The program tells you if you are right or wrong and gives the right answers whenever you request them. Twelve other more advance chemical equations are available a
The animal kingdom may have its egg-laying platypus, but the plant kingdom is not without its own odd twists on taxonomy. If movies like Little Shop of Horrors are any indication, carnivorous plants like the Venus flytrap, sundew, and pitcher plant never fail to spark the imagination. The following set of Web sites presents a brief introduction to carnivorous plants and includes loads of great photos. The first site (1) contains the Galleria Carnivora, a terrific collection of carnivorous plant
Max Planck Institute for Gravitational Physics
This expansive Web site features the Max Planck Institute for Gravitational Physics' research dealing primarily with geometric analysis and gravitation, astrophysical relativity, quantum gravity and unified theories, and laser interferometry and gravitational wave astronomy. After learning about the Institute's origins in 1995, researchers can find out about the institute's intense efforts and hardships in developing a consistent theory of quantum gravity as well as its investigation in gravitat
NOAA Coastwatch Great Lakes Node
The National Oceanic and Atmospheric Administration's (NOAA) CoastWatch program provides near real-time satellite observations and in-situ Great Lakes data. Visitors can view AVHRR imagery, contour maps, GOES imagery, and other Great Lakes data imagery. The website offers data on the physical characteristics of the Great Lakes as well as data on the average surface water temperature and current and historic water levels. QuickTime movies illustrate changes in water temperature throughout a given
Mice Rule! (Or Not)
Students explore the relationships between genetics, biodiversity, and evolution through a simple activity involving hypothetical wild mouse populations. First, students toss coins to determine what traits a set of mouse parents possesses, such as fur color, body size, heat tolerance, and running speed. Next they use coin tossing to determine the traits a mouse pup born to these parents possesses. These physical features are then compared to features that would be most adaptive in several differ
Stop the Stretching
Students learn about composite materials, tension as a force and how they act on structural components through the design and testing of strips of plastic chair webbing.
A Case of Innovation
A white paper is a focused analysis often used to describe how a technology solves a problem. In this literacy activity, students write a simplified version of a white paper on an alternative electrical power generation technology. In the process, they develop their critical thinking skills and become aware of the challenge and promise of technological innovation that engineers help to make possible. This activity is geared towards fifth grade and older students and computer capabilities are req
The Earth is a Changin’
This lesson introduces and describes the main types of erosion (i.e., chemical, water, wind, glacier and temperature). Students learn examples of each type of erosion and discuss how erosion changes the surface of the Earth. Students also learn why engineers need to be aware of the different types of erosion in order to protect structures and landmarks from the damaging effects erosion can cause. Figure 1 is an excellent illustration of water erosion.
Students learn about the advantages and disadvantages of the greenhouse effect. They construct their own miniature greenhouses and explore how their designs take advantage of heat transfer processes to create controlled environments. They record and graph measurements, comparing the greenhouse indoor and outdoor temperatures over time. Students are also introduced to global issues such as greenhouse gas emissions and their relationship to global warming.
Shallow & Deep Foundations
Students investigate the critical nature of foundations as they learn differences between shallow and deep foundations, including the concepts of bearing pressure and settlement. Using models representing a shallow foundation and a deep pile foundation, they test, see and feel the effects in a cardboard box test bed composed of layers of pebbles, soil and sand. They also make bearing pressure calculations and recommendations for which type of foundations to use in various engineering scenarios.
Music and sound are two different concepts that share much in common. Determining the difference between the two can sometimes be difficult due to the subjective nature of deciding what is or is not music. The goal of this activity is to take something constructed by students, that would be normally classified as just sound and have the class work together to make what can be perceived to be music. Students will construct a basic stringed instrument made of a shoebox and rubber bands. This activ
In this activity, students will learn how to read a topographical map and how to triangulate with just a map. True triangulation requires both a map and compass, but to simplify the activity and make it possible indoors, the compass information is given. Students will practice converting a compass measurement to a protractor measurement, as well as reverse a bearing direction (i.e., if they know a tree’s bearing is 100 degrees from you, they can determine what bearing they are from the tree).