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Birds of Prey
David Attenborough takes to the air in a glider to experience air current lifts as a bird while observing various birds of prey high in the mountains of Spain. This video contains fabulous footage from the BBC. (03:06)
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2 A 4.6 billion-year history

Climate change is a natural process of warming and cooling that has occurred all through the Earth's history. Throughout geological time there have been ‘hot-house’ periods and ice ages. In order to understand the current situation, it is necessary to have some sense of context and perspective, from historical and geological time-scales. The document below shows a chart showing a generalised temperature history of the Earth.

Click on the link below to see the chart


Author(s): The Open University

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Khan Academy: Chemistry 1 App for iOS
'Ximarc Studios Inc is proud to bring you Khan Academy Chemistry 1 (videos 1-20). Khan Academy Chemistry allows students to learn Chemistry through various videos which are downloaded directly on your iPhone or iPod touch and in the future to your iPad. Students can watch the video anywhere, anytime, all the time and NEVER be concerned about having access to the internet while you are going through a Khan Academy lesson.Ximarc Studios will continue to bring you great video lessons from the Khan
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21W.732-2 Introduction to Technical Communication: Ethics in Science and Technology (MIT)
This section of Introduction to Technical Communication deals with ethical issues associated with the design, use, and propagation of technology. At virtually all stages of development and use, any technology can carry with it ethical dilemmas for both creators and users. Of particular interest is how such dilemmas are resolved (or complicated) according to how effectively they are communicated to stakeholders.
Author(s): Doherty, Robert

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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

5.2 Electronic kitchen scales

A set of electronic kitchen scales is shown in Figure 7. Their basic operation is relatively simple. When they are switched on and, for example, a 500-gram object is placed in the scalepan, the display shows the digits 500 and the letter g.

Twelfth Night, Part 2 of
This animated cartoon abridgment of the great classic play by Shakespeare brings this story to younger students.  Some of Shakespeare's words appear at the bottom of the screen.  Part 2 of  ends in mid-sentence.  (8:16)
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Torsional energy can be taken up by alternative DNA conformations

The energy introduced into DNA by twisting has great potential as a regulatory mechanism, since the free energy can be stored in a variety of different high-energy conformations along the chain.

SAQ 14

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Nitrogen
Nitrogen is the most abundant element in Earth. Details different characteristics of nitrogen. Run time 04:20.

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1.7.3 What is proportion?

A common criticism of many children's and some adults' drawings is that certain parts are not ‘in proportion’. That means that they are either too big or too small in relation to the rest of the masterpiece. ‘In proportion’ means being in the same ratio. Imagine that you have drawn a picture of the front of your house, reducing it in scale to one twentieth of its size.

Author(s): The Open University

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4.3.2 Complementary currencies

Complementary currencies also demand a rethink of our economy, but have a more imaginative and radical edge. Because of the difficulties with conventional monetary systems, various alternatives are being tried. These are usually restricted to a particular group of people, and so are called ‘local’ or ‘complementary’ currencies. They are generally based in a local community and enable people to exchange goods and services without resorting to ‘traditional’ currency. Some are
Author(s): The Open University

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5.1.9 Music

Blom, E., revised by Cumings, D. (eds) (1991) The New Everyman Dictionary of Music, London, Dent.

Isaacs, A., and Martin, E. (eds) (1982) Dictionary of Music, London, Sphere.


Author(s): The Open University

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2.7 Reconsideration of the models and their suitability

Now that we have studied a variety of sources of evidence from Africa, it is possible to reconsider how well our four models of cultural interaction fit the evidence.


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Learning outcomes

By the end of this guide you should be able to:

  • conduct your own searches efficiently and effectively;

  • find references to material in bibliographic databases;

  • make efficient use of full text electronic journals services;

  • critically evaluate information from a variety of sources;

  • understand the importance of organising your own information;

  • identify some of the systems available;

  • describe ho
    Author(s): The Open University

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Lord Kerr: Brexit: Will Divorce be Damaging, and Could it be Amicable?
In this IPR Public Lecture, veteran diplomat and author of Article 50 Lord Kerr of Kinlochard shares his insight into the negotiating process Britain will go through to leave the European Union. Examining Theresa May's strategy and the history of relations between Brussels and London, the life peer sets out five possible scenarios for the future of Brexit Britain. This IPR Public Lecture took place on 26 January 2017.Author(s): No creator set

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7.7 Radiation detection

In astronomy we detect the radiation from large numbers of electrons, rather than being able to distinguish the contributions of individual electrons. The electrons will have a range of velocities and of orientations with respect to the magnetic field, so the synchrotron spectrum we observe will be the sum of lots of individual spectra with varying values of Author(s): The Open University

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5.5.1 Non-uniform mixtures

Moulded rubbers and plastics are compounds of a polymer matrix and a variety of additives. The mixing history of the material before and during the moulding process can have a critical influence upon the final product properties. If mixing is done badly then the microstructure of the moulding can be non-uniform. Lack of uniformity can cause variations of strength and other physical properties within the moulding. The degree of dispersion or distribution of relatively minor quantities of addit
Author(s): The Open University

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Acoustique du bâtiment
Sommaire : 1- Caractérisation physique et physiologique des sons et des bruits 2- Propagation sonore en espace libre 3- Propagation en espace clos 4- Isolation des parois aux bruits aériens - Annexes
Author(s): Kuznik, Frédéric,Krauss, Gérard,Yezou, René

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Electronique internet . Cette ressource est la propriété de ses auteurs et de l'INSA de Lyon.

Learn French- Learn 10 Sentences (Review All 70 Sentences in This Video)
Learn 10 simple French sentences. Each sentence is said by a native French speaker 3 times. When the head on the right side 'blinks', that is the time for the viewer to say the sentence aloud. Each sentence is accompanied by an appropriate image. The video would be better served if there was a English translation. (This is the longest video in the series- 32:16)

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5.1 The reception of Hume's views

‘Of suicide’ was received with the same degree of public hostility as his essay on immortality. Here is what an anonymous reviewer of the 1777 posthumous edition of both essays had to say in the Monthly Review (1784, vol. 70, pp. 427–8):

Were a drunken libertine to throw out such nauseous stuff in the presence of his Bacchanalian companions, there might be some excuse for him; but were any man to advan
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Walter Dean Myers at Children's Book Week
Walter Dean Myers, the 2012-2013 National Ambassador for Young People's Literature and a renowned author of books for young people, tells stories, reads from his books and talks with members of the audience in a program that marks the Library's celebration of Children's Book Week. Speaker Biography: Walter Dean Myers is a writer of children's books best known for young adult literature. He has written over fifty books including picture books and nonfiction. He has won the Coretta Scott King Aw
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