Computer fights hacker attack
Read more: http://www.newscientist.com/blogs/nstv/2011/03/born-to-be-viral-computer-fights-hacker-attack.html
This learning resource introduces the concept of improvement within health and social care. It shows how improvement may be initiated and evaluated. It also explains how improvement is everyone's concern, with small changes having the potential for large impact.
Too Big or Too Small?
This lesson features three activities to promote number sense with large numbers, fractions, and decimal operations. In the first activity, students use proportional reasoning to determine whether $1 million in $1 bills would fit in a suitcase and how much it would weigh. In the second activity, students use circular regions to develop their sense of the relative sizes of fractions between 0 and 1. In the third activity, students play a game that develops their sense of the effect that operation
Nuclear Physics Group
This website features the Nuclear Physics Group at the University of Birmingham's research related to understanding nuclei properties by studying the behavior of their constituents. Visitors can learn about the investigations undertaken by the five subgroups: Relativistic Heavy Ion Collisions, Exotic beams studies, Laser Spectroscopy of Unstable Isotopes, Positron Emission Tomography, and Nuclear Power Energy. Students and educators can discover how under high temperature and density a quark is
Philips: What if You Could Carry Your TV Around?
Philips Research demonstrated "the world's first matrix display that keeps functioning while being bent," and it has great expectations for the technology. Although it will probably not be commercially available for some time, it is intriguing to envision being able to unroll an e-book to read. A broad introduction to flexible displays is given on this Web site. Several potential technologies that could be used to manufacture the devices are discussed, including organic light-emitting diodes and
Lichen Determination Keys
Published by the Botanic Garden and Botanical Museum (BGBM), Berlin-Dahlem, this Web site serves as on online guide to lichen identification. Users can choose from articulated identification keys for a large number of taxa, or follow links to keys organized by geographical region. There is also an interactive lichen identification database. The Web site has been recently updated to include a key for the genus Stereocaulon in Tropical America. Users should note that the keys listed are created by
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,
Developed jointly by the Pacific Science Center and the Washington State Dairy Council, Nutrition Cafe 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 answe
CAT (Computerized Axial Tomography) scans
This web page about CAT (computerized axial tomography) scans gives a brief overview of this imaging technique. CAT (or CT) scanning captures a lot of 2-dimensional X-rays that a computer then joins together to generate 3-dimensional images of internal structures. As part of a set of materials about brain scanning technologies, this page mentions what researchers can learn about the brain from CAT scans. Copyright 2005 Eisenhower National Clearinghouse
This easy to read page includes a biography of Chadwick who discovered the neutron, a photo of Chadwick and links to related people such as Rutherford.
Wetlands : quick take
Here are some websites to supplement your content knowledge and lesson repertoire for educating students about wetland and estuary value and conservation practices.
JGI Nitrosomonas europaea ATcC 19718
As part of the DOE initiative to explore the role of microorganisms in global carbon sequestration, the Joint Genome Institute is sequencing the autotrophic nitrifying bacterium Nitrosomonas europaea. This organism plays a central role in the availability of nitrogen to plants and hence in limiting C02 fixation. These bacteria are important players in the treatment of industrial and sewage waste in the first step of oxidizing ammonia to nitrate.
National Oceanic and Atmospheric Administration : Climate Homepage
This National Oceanic and Atmospheric Administration website provides climate information and data. This site offers a variety of product links to climate monitoring, climate at a glance data, U.S. drought assessment, global climate change information, weather observation stations and more. Users can also link to organizations which participate in climate research such as the National Climate Data Center, Ocean Climate Laboratory and the National Weather service. This site is an excellent resour
Valley Springs Snow Cream
Middle School, difficulty level 2. Compare the volume of a sphere, cone, and cylinder using ice cream.
Science Sampler : Fossil detectives
Middle school students are transformed into Fossil detectives as they examine the fossil record and use evidence about paleo-environments to develop an understanding of structure and function in living systems and changes over time in Earths history. In this enrichment activity, students work in teams to research an assigned geologic time period. They determine available habitats, food sources and types (animal, plant; woody, herbaceous, etc.), cover sources, methods of getting food, defense, an
Scope on Safety : Collaborating safely
With the advent of inclusion legislation such as the Individuals with Disabilities Education Act (IDEA) or PL 105-17 Reauthorization Action of 1997, many schools have focused on teaching partnerships between regular education and special education teachers. Science departments have been no exception to the trend toward team-teaching. This article describes five of the most popular models of team teaching. In addition, the legal implications and science safety issues concerning collaboration are
King Leads the March on Washington
the March on Washington (3:10) On August 28, 1963, a quarter million people gather to support civil rights, and share Dr. King's "dream" of equality. This video is highlighted by King's "I have a dream speech" and the reaction to it. The efforts of the federal government to enforce civil rights is explained as well as how the March was organized and where.
Visible Light and the Electromagnetic Spectrum
In this lesson, the electromagnetic spectrum is explained and students learn that visible light makes up only a portion of this wide spectrum. Students also learn that engineers use electromagnetic waves for many different applications.
Energy in our Lives Carousel
This activity is way for students to discover that they already know a lot about energy through their own life experiences. They are active consumers of various forms of energy and are aware of energy purchases for transportation, electricity and (possibly) home heating. A pedagogical technique of a “carousel” is used to get all students involved in brainstorming and contributing ideas. The goal is to introduce students to some key terms and issues associated with energy as a necessary prere
Riding the Radio Waves
Through this lesson students learn how AM radios work through basic concepts about waves and magnetic fields. Waves are first introduced by establishing the difference between transverse and longitudinal waves, as well as identifying the amplitude and frequency of a given waveform. Students then learn general concepts about magnetic fields, leading into how radio waves are created and transmitted. Several demonstrations can be performed in order to help students better understand these concepts.