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Coastal Walk - Stop 1a
The stretch of coastline between Slapton Sands and Start Point lighthouse is one of the most beautiful and interesting in the UK. In this podcast, we take you along the way, combining fascinating snippets of information about the natural history, geography, geology and history of the area. Presented by Dr Phil Bradfield, Open University tutor, this walk has something for everyone. This is the first stop on the walk (part two).
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Introduction

In this unit we look at some different systems of numbers, and the rules for combining numbers in these systems. For each system we consider the question of which elements have additive and/or multiplicative inverses in the system. We look at solving certain equations in the system, such as linear, quadratic and other polynomial equations.

In Section 1 we start by revising the notation used for the rational numbers and the real numbers, and we list their arithmetical prop
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1.8.10 A mathematician’s journey: building a model

She estimates she will drive for about two hours at an average speed of about 85 kilometres per hour and then stop for a break for about 30 minutes. She then intends to continue her journey to arrive finally in Newcastle around 3.30 pm. Alice also needs Bob’s estimates. He reckons to drive for about 2.5 hours to cover 170 kilometres, stop for about 30 minutes and then press on for Nottingham to get there at about 5 pm.

Alice summarises their planned journeys in two tables. She measure
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6.3.1 Refinements and difficulties

In Section 6.2, we said that inter-axis repulsions vary in the order:

non-bonded pair–non-bonded pair > non-bonded pair–bond pair > bond pair–bond pair

There is evidence for this in the inter-bond angles in molecules. For example, in wat
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Reporting Courage: The MI 7 Propaganda Machine
The archive Tales of the VC comprises 94 individual accounts of the heroism that earned the highest award for valour, the Victoria Cross. These are recounted deferentially and economically, yet they can still move the reader. Authored by Lt James … Continue reading
Author(s): Pat Lockley

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Maniac Magee By Jerry Spinelli
This is a video about the novel Maniac Magee. It gives a brief background about the author, Jerry Spinelli and some highlights from the book.

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2.2.3 Positive integers: converting denary numbers to binary

If computers encode the denary numbers of the everyday world as binary numbers, then clearly there needs to be conversion from denary to binary and vice versa. You have just seen how to convert binary numbers to denary, because I did a couple of examples to show you how binary numbers ‘work’. But how can denary numbers be converted to binary? I'll show you by means of an example.

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Protests over chokehold death rock NY, DC
Huge crowds of demonstrators in New York City and Washington, D.C. protest the Eric Garner case for the second night in a row. Jennifer Davis reports. Subscribe: http://smarturl.it/reuterssubscribe More updates and breaking news: http://smarturl.it/BreakingNews Reuters tells the world's stories like no one else. As the largest international multimedia news provider, Reuters provides coverage around the globe and across topics including business, financial, national, and international news. For
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2.3.2 Möbius band

Let us now see what happens if we try to identify two opposite edges of a rectangle in opposing directions. (Here, we are identifying the two ends of the rectangle rather than the top and bottom.) We start with a rectangle, as before, but this time the edges to be identified have their arrowheads pointing in opposite directions. This means that we cannot glue the edges directly, but have to twist one of them through Author(s): The Open University

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1.3.9 Internet resources

There are many websites where you will find useful information on science and nature. With all information on the internet you need to make a judgement on the reliability of the information

BBC Science and Nature Part of the BBC's website covering various topics on science and the n
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1.3.6 Journals

Journals and articles written by academics or experts are an excellent source of information. Journals are usually published monthly or quarterly, and contain a selection of articles providing details of recent research. Often they will also contain reviews of relevant books. They are usually published more quickly than books, and so are often more up to date.

To access content of journals, most publishers require a subscription. There are, however, some journals which you can freely ac
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Learning outcomes

On completion of this unit, you should be able to:

  • identify criteria to evaluate the politics of racial violence.


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3.1 Tables and flat databases

Databases lie at the heart of many e-government systems, and at the heart of many other ICT systems. The local government websites you looked at in Activity 6, for instance, almost certainly used databases a great deal, as do the majority of central government sites. Away from e-government, the websites for Amazon or eBay, for example, use huge databases.

Constructing a database of any complexity requires careful thought about the way information is organised in any particular context.
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Virtual Maths - 3D shapes, area of cylinder
Interactive simulation demonstrating the formula and calculation of the area of a cylinder
Author(s): Leeds Metropolitan University

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2.3 Trojans

The term Trojan comes from the Greek legend about the fall of the city of Troy. The story goes that, during the seige of the city by the Greeks, a huge, hollow wooden horse was left in front of the gates. The inhabitants thought that it was a peace offering from the Greek army and dragged it into the city. Unknown to them, it was being used to conceal Greek soldiers, who were thus able to use this Trojan horse to enter the city and open the gates for the rest of their army.

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References

Bain, P. and Taylor, P. (2004) No Passage to India? UK Unions, Globalisation and the Migration of Call Centre Jobs, Work, Employment and Society Conference 1–3 September 2004, Manchester.
Cowe, R. and Porritt, J. (2002) Government's Business: Enabling corporate sustainability. London: Forum for the Future.
Knox, S. and Maklan, S. (2004), ‘Corporate Social R
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Learning outcomes

After studying this Unit you should be able to:

  • Explain in English and by using examples, the conventions and language used in graph drawing to someone not studying the course

  • Use the following terms accurately, and be able to explain them to someone else: ‘time-series graph’, ‘conversion graph’, ‘directly proportional relationship’, ‘“straight-line” relationship’, ‘gradient’, ‘intercept’, ‘x-coordinate’, ‘y-coordinate’, ‘coor
    Author(s): The Open University

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Symmetry and the Monster
UCL Lunch Hour Lectures are open and free to the public and take place on Tuesdays and Thursdays in the Darwin Lecture Theatre, UCL, Gower Street, London WC1E 6BT. They will resume in Autumn 2008. In the meantime, a number are available below.
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Lever de voile sur l'invisibilité (audio)

Les Conférences de l'Université de Toulon :

Animée par Monsieur Frédéric ZOLLA, Institut FRESNEL, Aix-Marseille Université.

Lever de voile sur l'invisibilitéL'invi
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Los Angeles 1984: The Games of the XXIII Olympiad

The Games of the XXIII Olympiad, from Los Angeles, USA.  These Games are known for the fourteen country boycott led by the USSR. The Los Angeles Memorial Coliseum became the only stadium to host the Summer Olympic Opening Ceremony twice, the first time in 1932.  Romania was the only Warsaw Pact nation to compete.  Carl Lewis of the U.S. won four gold medals in track and field, in the same events as Jesse Owens did in 1936.  Gymnas
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