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On September 11, 2001, Shanksville, Pennsylvania, became a center of national attention when United Airlines Flight 93 crashed into a former strip mine in sleepy Somerset County, killing all forty passengers and crew aboard. This is the story of the memorialization that followed, from immediate, unofficial personal memorials to the ten-year effort to plan and build a permanent national monument to honor those who died. It is also the story of the unlikely community that developed through those efforts. As the country struggled to process the events of September 11, temporary memorials—from wreaths of flowers to personalized T-shirts and flags—appeared along the chain-link fences that lin...
Basic principles : "Sustainability" in context -- Principle 1 : Keep healthy sites healthy -- Principle 2 : Heal injured soils and sites -- Principle 3 : Favor living, flexible materials -- Principle 4 : Respect the waters of life -- Principle 5 : Pave less -- Principle 6 : Consider origin and fate of materials -- Principle 7 : Know the costs of energy over time -- Principle 8 : Celebrate light, respect darkness -- Principle 9 : Quietly defend silence -- Principle 10 : Maintain to sustain -- Principle 11 : Demonstrate performance, learn from failure -- Sustaining principles, evolving efforts.
"The second edition of Sustainable Landscape Construction has been updated to include the most important development and latest scientific research in the field. - It has been expanded to provide more ideas for designing, building, and maintaining environmentally sensitive landscapes."--Jacket.
Develops angular momentum theory in a pedagogically consistent way, starting from the geometrical concept of rotational invariance. Uses modern notation and terminology in an algebraic approach to derivations. Each chapter includes examples of applications of angular momentum theory to subjects of current interest and to demonstrate the connections between various scientific fields which are provided through rotations. Includes Mathematica and C language programs.
This volume examines interstate rivalries of the past 500 years, providing case studies of those between land powers with continental orientations, and leading maritime powers and challengers. The contributors focus on the transition from commercial to strategic rivalry.
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