4.3 Indirect use of solar energy

The above examples illustrate the direct harnessing of the sun's radiant energy to produce heat and electricity. But the sun's energy can also be harnessed via other forms of energy that are indirect manifestations of its power. Principally, these are bioenergy and hydropower, already discussed in Section 3 above, together with wind energy and wave power.


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Communication in health and social care
Whether working with older people, vulnerable children or patients suffering ill health or disability, care providers' ability to communicate is not only useful, but essential. This album provides an invaluable insight into all aspects of communication, with both colleagues and service users. It shows how the difficulties of operating effectively in stressful situations can be overcome and even used as a learning and developmental experience. With contributions from carers and service users, thi
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The Rocky Road To Kansas, Part Two, Ellen Goodnow and Maria Felt: "advise those young men who brough
Ellen Goodnow and Maria Felt were early settlers sponsored by antislavery groups who wanted Kansas Territory to be admitted to the Union as a free state. Both of these women sent encouraging reports back east about their journeys to Kansas Territory and the new settlements there. Goodnow's husband Isaac was a co-founder of the town of Boston (later Manhattan), K. T. Goodnow quotes her husband as stating, "advise those young men who brought such doleful reports about Kansas, not to leave the s
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Ni-Superalloy, heat treated above gamma-prime solvus
This micrograph shows a high magnification image of The morphology of γ' is discernible as grey 'blocky' precipitates, approximately 2μm in diameter. The small white particles present, due to their atomic contrast visible in back-scattered mode, are discernable as MC carbides. View schematic diagram of γ' microstructure
Author(s): DoITPoMS, University of Cambridge,R J Mitchell, Ro

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2.3.1 The general view

Figure 16 shows a Voyager 2 image of a large region of Europa. Examine this image carefully, in order to answer Question 4.

Figure 16
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EN-4. Naming and classifying biodiversity: a diversity of the view of nature (Vidéo)

Through the study of the life classifications variety, Richard Dumez evidences the diversity of the views of the nature. Scientific classification, popular or vernacular classifications, he indicates the operations on which all those approaches are based. He illustrates this with the example of the Aka Pygmy and the Inuits.


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Those Golden Eggs Come From Somewhere: Internet Regulation at a Crossroads
A discussion of how largely well-intentioned political and legal reactions to the highest-profile risks of ICT creates a danger of perhaps killing the goose that is giving us golden eggs of innovation, decentralization, and personal empowerment. From its inception, many have recognized the Internet's potential as a liberating, decentralizing, and, yes, destabilizing technology but also its counter-potential as a controlling and centralizing technology. Over the last two decades, predictions abo
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Análisis Estructural de Sistemas Mecánicos
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Using 3D object layers from Photoshop
Create PSD documents in Photoshop that contain 3D object layers and animate and composite the 3D object layers in After Effects.
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Introduction

We begin this course by looking at an estuary, a place where sea, land and sky meet. We have chosen a particular estuary: the Blackwater estuary on the Essex coast in eastern England. Although the Blackwater has its own unique characteristics, it is used here as a setting, a device for approaching the study of environments. Like any other estuary, the Blackwater brings together a diverse range of processes, elements and issues that constitute the environment. It offers us a way into thinking
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5.2 Studying the materials

This is the period when you will be working on your course materials in preparation for the assignment. This may include working through written or electronic texts, any other associated reading or media components, possibly attending a tutorial, accessing any other information that you need and making notes or records of it. Some courses give you a lot of direct guidance on how to work through the course materials; others present you with a range of options and routes. Some courses, particul
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Tigers For Younger Learners
Learn about tigers in this educational video for kids! You will learn about tiger cubs, the size of tigers, where they live and the important task we have to make sure that tigers have the habitat they need to thrive! (11:34)

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5.1 Introduction

Figure 9
Figure 9 Lithotectonic units of the British Isles
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Charter 88 and the Constitutional Reform Movement Twenty Years On
First part of a Panel discussion held at Portculis House, Westminster, asking what have been the central strengths and achievements of the constitutional reform movement among other questions that look back at Charter 88.
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Interrelationships between the temples of Central Java (video)

A number of suggestions have been made on interrelationships between Central Javanese temples, Borobudur, Pawon, Mendut, Sewu, and Loro Jonggrang. Also, a number of different suggestions have been made to place the monuments chronologically within the framework of Central Javanese history. In this lecture I wish to contribute to the discussions on interrelationships between Central Javanese temples on the basis of a study of the ornamentation adorning the Central Javanese temples.


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References

Bush T. and Middlewood D. (1997) Managing People in Education, Paul Chapman, London, p. 172.
The Education (School Teacher Appraisal) (England) Regulations 2000
DfES/Ofsted 2005, A New Relationship with Schools: Next Steps.

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4.3.1 Confidentiality, integrity and availability

To preserve the value of an information asset, an organisation needs to sustain simultaneously its scarcity and its shareability within their respective regions. This is the critical high-level information security goal for any information asset; it is the entire rationale of an information security management system.

To maintain the security of an information asset, an organisation must:

  • either make the information asset unavailable in it
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Introduction

In this unit you will learn about the history of Spain and the important place of Arab and Jewish cultures in that history. We will revisit some key dates and we will see what life was like in the cities of Segovia and Córdoba where Muslim, Jewish and Christian cultures coexisted for some time. In order to develop these topics, you will learn and practise the presente histórico, preterite and imperfect tenses and the use of time expressions to link various chronological events
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1 Introducing the concept of freedom

What are the limits of individual freedom in a civilised society? Should we tolerate unlimited freedom of speech, no matter how offensive the views expressed? Can the state ever be justified in interfering with what consenting adults choose to do in private? When, if ever, is coercion acceptable? Are all laws obstacles to freedom, or are they the very condition of achieving it? Should we sometimes force people to be free, or is that a contradiction in terms? These are serious questions. They'
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Keep on learning

Study another free course

There are more than 800 courses on OpenLearn for you to c
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