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Luminescent Solar Concentrators Explained
Researchers are well along in designing a highly efficient, inexpensive solar cell, but the big barrier to the dissemination of solar power in society remains the problem of installation, says Marc Baldo.

As an engineer, Baldo expresses confidence that “we’re going to mow down” the problem of producing a g

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Aquinas Scholars Symposium 2014
Aquinas Scholars Symposium 2014
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The rise of China and America's Asian allies
In this lecture at ANU, Professor Walt explains why China's rise will lead to increased security competition in Asia and explores the implications of this trend for United States alliance relations in this region. Sino-American competition is inevitable because the world's two strongest powers invariably cast a wary eye on each other. Moreover, it is in China's long-term interest to reduce the U.S. security presence in Asia. The U.S. will resist such efforts, however, because it does not want C
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Duke Medicine Profiles: Elizabeth White, FNP
Get to know Duke Medicine's primary care providers.
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Engineering Professor Robert Palumbo
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Thomas Homer-Dixon on Civilization Far From Equilibrium
Thomas Homer-Dixon presents his lecture Civilization Far From Equilibrium: Energy, Complexity and Human Survival at the Equinox Summit - Energy 2030.
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2015 Lace Wedding Dress

Video link (see supported sites below). Please use the original link, not the shortcut, e.g. www.youtube.com/watch?v=abcde

Author(s): Milan's Spring

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3.5 The language of law
Social work is a dynamic profession that is undergoing a period of significant change in Scotland. Social workers have the power to make assessments and decisions that radically alter people's lives. This unit introduces the law as it relates to social work and encourages an understanding of the context of the law in order to make sound decisions.
Author(s): The Open University

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Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2

2.1 First impressions
Social work is a dynamic profession that is undergoing a period of significant change in Scotland. Social workers have the power to make assessments and decisions that radically alter people's lives. This unit introduces the law as it relates to social work and encourages an understanding of the context of the law in order to make sound decisions.
Author(s): The Open University

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Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2

Literacy and Enjoyment 1
This video from Teachers TV follows the practice of a Year 2 teacher who has been involved with the Centre for Literacy in Primary Education’s 'Power of Reading' project. It includes interviews with the class teacher and Olivia O’Sullivan from the CLPE, in which each discusses the approach and how it supports children’s reading and their writing. Throughout the video there are excerpts from the teacher’s classroom in which she can be seen working with her class at different stages of the
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21L.007 World Literatures: Contact Zone (MIT)
World Literatures will focus on the concept of the contact zone. What happens when cultures with different ideologies and norms come into contact with each other through exploration and colonization? We will examine how the complex issues surrounding race, gender, language and power are represented in both poetry and prose from African, Caribbean and South Asian perspectives. Our discussions will focus on not only the historical situations that these texts represent, but also the literary con
Author(s): Braithwaite, Alisa Kim

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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

Model testing of passive site stabilization
Passive site stabilization is a new technology proposed for use in mitigation of liquefaction risk at developed sites. Liquefaction is the rapid loss of strength caused by earthquakes, typically found in saturated sands or loose fills, which causes the formation to flow like later. Liquefaction has been known to be a very costly occurrence claiming many lives, damaging structures and businesses, and costing billions of dollars in repairs; however, sites can be remediated to prevent liquefaction.
Author(s): Koch, Alyssa Jean

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2 Summary
The energy carried by ocean waves derives from a proportion of the wind energy transferred to the ocean surface by frictional drag. So, ultimately it stems from the proportion of incoming solar energy that drives air movement. Just how much energy is carried by a single wave depends on the wind speed and the area of ocean surface that it crosses; wave height, wavelength, and therefore wave energy, are functions of the distance or fetch over which the wind blows. This unit considers the power
Author(s): The Open University

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Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

3 Summary
Wind energy was the fastest growing power source at the starts of the 21st century, yet wind-driven mills and pumps, and nautical sails for transport, were, along with waterwheels, the first mechanical devices to power industrial production. The advantages of harnessing wind energy are obvious; it is free, clean and widely available. This unit explores the Wind as a potential source of useable energy.
Author(s): The Open University

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Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

2 The future of wind energy
Wind energy was the fastest growing power source at the starts of the 21st century, yet wind-driven mills and pumps, and nautical sails for transport, were, along with waterwheels, the first mechanical devices to power industrial production. The advantages of harnessing wind energy are obvious; it is free, clean and widely available. This unit explores the Wind as a potential source of useable energy.
Author(s): The Open University

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Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

1 Wind energy
Wind energy was the fastest growing power source at the starts of the 21st century, yet wind-driven mills and pumps, and nautical sails for transport, were, along with waterwheels, the first mechanical devices to power industrial production. The advantages of harnessing wind energy are obvious; it is free, clean and widely available. This unit explores the Wind as a potential source of useable energy.
Author(s): The Open University

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Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

6 Direct heating using geothermal energy
Energy from sources other than fossil and nuclear fuels is to a large extent free of the concerns about environmental effects and renewability that characterise those two sources. Each alternative source supplies energy continually, whether or not we use it. This unit considers one of these alternative sources, geothermal energy derived from the interior heat of the Earth, and the potential for this alternative to supplant fossil and nuclear fuel use to power social needs fast enough to avoid t
Author(s): The Open University

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Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

3 Hot dry rock (HDR) fields
Energy from sources other than fossil and nuclear fuels is to a large extent free of the concerns about environmental effects and renewability that characterise those two sources. Each alternative source supplies energy continually, whether or not we use it. This unit considers one of these alternative sources, geothermal energy derived from the interior heat of the Earth, and the potential for this alternative to supplant fossil and nuclear fuel use to power social needs fast enough to avoid t
Author(s): The Open University

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Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

1 Geothermal energy
Energy from sources other than fossil and nuclear fuels is to a large extent free of the concerns about environmental effects and renewability that characterise those two sources. Each alternative source supplies energy continually, whether or not we use it. This unit considers one of these alternative sources, geothermal energy derived from the interior heat of the Earth, and the potential for this alternative to supplant fossil and nuclear fuel use to power social needs fast enough to avoid t
Author(s): The Open University

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Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

6 Summary
The transformation of radioactive uranium and, in some instances, thorium isotopes provides vastly more energy per unit mass of fuel than any other energy source, except nuclear fusion, and therein lies its greatest attraction. The unit considers the advantages and limitations of generating this power and the environmental and security issues that the process raises.
Author(s): The Open University

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