Stressed and Strained
Students are introduced to the concepts of stress and strain with examples that illustrate the characteristics and importance of these forces in our everyday lives. They explore the factors that affect stress, why engineers need to know about it, and the ways engineers describe the strength of materials. In an associated literacy activity, while learning about the stages of group formation, group dynamics and team member roles, students discover how collective action can alleviate personal feeli
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Hurricanes: the greatest storms on earth
This website, provided by NASA's Earth Observatory, describes the science behind hurricanes. Sections include hurricane formation and decay, hurricane anatomy, information regarding storm surges, hurricane climatology, a description of the Saffir-Simpson scale and NASA study missions. Users will also find a list of references regarding hurricanes and hurricane science.
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Inside the Salt II Delegation
Edward L. Rowny was the Joint Chiefs of Staff representative to the Strategic Arms Limitation Talks (SALT) from 1972 to 1979. From 1981 to 1984, during U.S. president Ronald Reagan's administration, he was chief negotiator for the Strategic Arms Reduction Talks (START). In this video segment, Rowny explores Soviet and American negotiating tactics and proposals. He also shares his frustration with U.S. concessions, process, and misconceptions of Soviet thinking, all of which ultimately led to his
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Earthquake Animations
This site features earthquake related Flash animations and real video footage. The visualizations illustrate how seismographs work, p and s waves, earthquake foci versus epicenters, tsunami formation, as well as an earthquake video recorded by security cameras. These resources portray a variety of environments and are suitable for use in lectures, labs, or other teaching activities.
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Groundwater Animations
This site features Flash and QuickTime animations related to groundwater. They contrast the permeability of gravel, sand, silt, and clay, as well as the speed of groundwater movement in rivers, lakes, and aquifers. They also outline the hydrologic cycle, discussing infiltration, percolation, and the water table, exhibit groundwater overdraft and the resulting formation of a cone of depression, and show how groundwater entering fractured bedrock can become superheated and pushed to the surface, e
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Colliding Galaxies
The Colliding Galaxies Model is an implementation of Alar and Juri Toomres' 1972 super computer model showing the formation of galactic bridges and tails under the assumption that galactic cores are point masses and that one galactic core is surrounded by 2D concentric rings of orbiting stars. The model assumes is that the stars (test particles) orbiting the galactic cores are non-interacting. When the two galaxies pass one another, tidal forces deform the star distribution into classic tidal fe
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Exploring Earth: Visualizations
This site features over 100 animations and images that illuminate key concepts in earth science. Examples are: coal formation, nuclear fission, growth of a continent, tectonic plate movement, volcanoes and earthquakes, fault motion, geyser eruption, wave motion, tornadoes, hurricanes, and more. Students can observe a single place on earth from multiple views, 3-D models of water and common molecules, different climate zones, and seasonal changes in the amount of sunlight reaching locations on ea
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Alien Earths
This site explores the formation of stars and planets and the quest for a habitable planet. Create a virtual a community of microorganisms. Try to build the perfect solar system. See how planets react with one another, and how some planets help keep our solar system stable. Look at images: see if you can recognize life.
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The Effect of a New Teacher Induction Program on New Teachers Reported Teacher Goals for Excellence,
Bonnie Perry, Karen Hayes
Over the past twenty years there has been a decline in the number of minority teachers entering and remaining in the teaching profession. While the overall teacher shortage is worrisome for […]
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Russia: dialogue essential in Egypt
Russia's envoy to the Middle East meets with Egyptian President Hosni Mubarak, and says Egypt will emerge from the current crisis through dialogue.
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Bernanke defends Fed policy
Federal Reserve Chairman Ben Bernanke defended his policies before a congressional committee, saying unemployment is still too high, and that the central bank remains committed to its $600 billion stimulus program.
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Bernanke defends Fed policy
Federal Reserve Chairman Ben Bernanke defended his policies before a congressional committee, saying unemployment is still too high, and that the central bank remains committed to its $600 billion stimulus program.
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Weber may miss out on ECB top job
German central bank chief Axel Weber will not be a candidate to replace European Central Bank President Jean-Claude Trichet, European sources said on Wednesday.
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Double Slovenian Funeral
There are two open caskets leaning against an exterior wall of Holy Trinity Catholic Church. Funeral attendees are grouped on both sides of the caskets. There is a banner along with an American flag by the caskets. Another casket with mourners is in the doorway of the church.
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Digital Image © 2005 Indiana Historical Society. All Rights Reserved.

Fe, C 0.86 (wt%) steel, quenched, cracked
The steel has been rapidly quenched. This leads to a rapid volume change due to thermal expansion. In this case the steel has been unable to plastically deform to accommodate this change. This leads to the nucleation of cracks in the metal. This is exacerbated by the fact that the quenching of steel promotes the formation of the brittle phase martensite.
Author(s): DoITPoMS, University of Cambridge,Dr R F Cochrane,

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http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Bionet Brochure: Organic Vegetables Guide 2011

pdfInformation from practice, consulting and research on the subject of organic vegetables and potato cultivation. By DI Roswitha Six, Andreas Kranzler, Katharina Hanz (Research Institute of Organic Agriculture FiBL Austria)
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Tumour cords' growth in a vascular network
Evolutions of oxygen concentration and formation of hypoxic zones during tumor growth in the vascular network. This simulation was produced with an experimental modification to the model, where vessels are oxygen sources inside the simulation domain, cells do not switch to anaerobic metabolism in this simulation. For more information refer to http://code.google.com/p/cord/.
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4007 BILINGUAL CAESAR'S INVASION OF BRITAIN
Book IV De Bello Gallico
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4008 BILINGUAL CAESAR'S INVASION OF BRITAIN
Book IV De Bello Gallico
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Clara Barton
A student project. This 3:47 minute video is a biography of this founder of the Red Cross and uses photographs to illustrate the narrator's points. There are good quotes given here and the video also shows how Barton had to fight both negative feelings about her work by men and women at that time.  The Red Cross start is also mentioned.
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