The Declaration of Independence
This is the second part of "A Powerful Performance." Here, the
Declaration is read by many popular actors, including Mel Gibson,
Michael Douglas, Whoopi Goldberg, Winona Ryder, and others. To hear it
read with such zeal is very inspiring. Think of this document whenever
you think of the role of government.

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User-produced Hebrew Prayer Books and Shared Iconography
Some Hebrew manuscripts were produced in Christian workshops, others were made by Jewish artists themselves for their own use. Piet looks at examples of these and explores the shared iconography between Christian and Jewish faiths, such as the unicorn. Some Hebrew manuscripts were produced in Christian workshops, while others were made by Jewish artists themselves for their own use. An Ashkenazic siddur stands out as an example of a Jewish scribe-artist, influenced by the visual culture of his t
Author(s): Piet van Boxel

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21H.421 Introduction to Environmental History (MIT)
This seminar provides a historical overview of the interactions between people and their environments. Focusing primarily on the experience of Europeans in the period after Columbus, the subject explores the influence of nature (climate, topography, plants, animals, and microorganisms) on human history and the reciprocal influence of people on nature. Topics include the biological consequences of the European encounter with the Americas, the environmental impact of technology, and the roots of t
Author(s): Ritvo, Harriet

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Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative C

Open celled aluminium foam produced by infiltration of sintered salt
This is an inexpensive route for the production of open celled foams. It allows a high degree of control over cell size and shape, and results in relatively uniform morphology. The interconnectivity of pores can be controlled by varying the degree of sintering of the precursor.
Author(s): DoITPoMS, University of Cambridge,J A Curran, Depa

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Stem cells: the future of medicine?
Dr Adam Giangreco views stem cell research as the best promise for medical breakthroughs over the next few decades. Dr Giangreco, a recent recipient of a major European Research Council grant, explains how he is exploring new treatments for lung damage and why funding stem cell research is so vital. 6 October is International Stem Cell Awareness Day. UCL Centre for Stem Cells and Regenerative Medicine: http://www.ucl.ac.uk/stemcells/ For UCL lectures on stem cell research (link to iTunesU): http
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SEM image of Velcro (TM)
Velcro is a system of hard polymer hooks and soft nylon loops, both woven into backing fabric. Inspired by the natural seed propagation mechanism used by some plants in the form of 'burrs', Velcro was invented in Switzerland in 1948 by George de Mestral. [...]
Author(s): J A Curran, Department of Materials Science and Me

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Prayers for protesters in Yemen
Aug. 12 - Anti-government protests contine in Yemen as soldiers who have defected from the government side guard the demonstrators. Deborah Lutterbeck reports.
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Chemical and Environmental Behaviour of Materials: Fuel Cells
This set of animations demonstrates the principles of a solid oxide fuel cell and a proton exchange membrane cell. From TLP: Fuel Cells
Author(s): Derek Fray, University of Cambridge,Steve Mounsey,

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The dream team
Dr Michael Lynch OBE, Founder and CEO of Autonomy, explains the importance of building a team capable of delivering your vision - a top team full of the right talent will be able to convert an idea in a tough and competitive market into a real global success. However in order to build this dream team you need to be prepared to take a few risks.
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Prepositional Phrases
This is a video presentation explaining what a prepositional phrase is. There are several examples and clear explanation of how a prepositional phrase works.
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Patri Friedman on Seasteading
Patri Friedman, Executive Director of the Seasteading Institute, talks with EconTalk host Russ Roberts about seasteading, the creation of autonomous ocean communities as an alternative to existing political and cultural forms. Topics discussed include the political and economic viability of seasteading, risks of piracy, the aesthetics of living on the ocean, and the potential impact of seasteading on conventional governments.
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Fidafrique

thumbnailFIDAFRIQUE is a rural development and poverty reduction network in Western and Central Africa network. The website contains a number of reports and presentations on rural and agricultural reasearch and development in the area. Topics covered include
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Mobility orientations - an independent factor for the development of sustainable mobility

pdfMobility is a central attribute of modern societies. It has fundamental importance for people´s quality of life, as well as for the population in rural areas. How will mobility develop in the future? Participating in the rapidly evolving life forms? Will urban and rural are
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Economic Strategies for Organic Family Farms in Austria

pdfOrganic holdings in Austria are organized primarily as family farms. This means that an internal system consisting of family, business and household faces an external system consisting of cultural, social, economic and political conditions. Within and between the two systems
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Screencast on multiplying Fractions with whole numbers
Examples of multiplying Fractions with whole numbers
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Worlds Apart: What’s Behind the U.S.-China Currency Dispute?
Faced with the possibility of a global currency war, Western countries are increasing their scrutiny of China's currency policies, accusing Beijing of intervening in the markets to keep China's currency weaker than it would be otherwise. In the U.S., politicians and regulators say such tactics undermine efforts to boost exports, and thus take away jobs from American workers. But the controversy is more complicated than that, and touches on policies and attitudes that go back decades. Knowledge@W
Author(s): Knowledge@Wharton

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Tally Charts and Frequency Tables
In this whiteboard presentation, the teacher narrator shows how to create a tally chart and then use the tally chart to create a frequency chart.  Next, the teacher demonstrates how to answer the word problem using the frequency table.  
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Virtual Maths - 3D shapes, diagram, area, volume
Diagram of 3D shapes with formula for calculating area (and volume)
Author(s): Leeds Metropolitan University

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PODCAST: Money in the Margins

More people than ever are participating in the informal economy. What are the risks, benefits, and implications of this dramatic new trend? Community organizer Gichelle Cruz talks about the informal economy as it relates to government, the community, and globalization. (34:59)


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Douglas Melton, Harvard University: "Stem Cell Challenges in Biology and Public Policy" - April 10,
Douglas Melton will discuss the biology and public policy challenges surrounding stem cell research. The potential of human embryonic stem cells for understanding human development and finding new therapies will be presented. Dr. Melton is a cell and molecular biologist as well as an advocate of embryonic stem cell research. His research focuses on the developmental biology of the pancreas. One of the primary goals of his work is to understand how human embryonic stem cells differentiate into pa
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