4 Thinking about adaptation

Section 3 identified a range of adaptations in insect eaters, most linked with their mode of feeding. Particular structures are identified as having particular functions. But there are problems with the concept of adaptation if it's taken too far. Not all features of an organism have to be functional in ways that perfectly su
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How to Avoid the Perils of Political Forecasting
Wharton’s Philip Tetlock discusses the widening chasm between science-based political forecasting and the sound bites from pundits that often miss the mark.
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18.755 Introduction to Lie Groups (MIT)
This course is devoted to the theory of Lie Groups with emphasis on its connections with Differential Geometry. The text for this class is Differential Geometry, Lie Groups and Symmetric Spaces by Sigurdur Helgason (American Mathematical Society, 2001). Much of the course material is based on Chapter I (first half) and Chapter II of the text. The text however develops basic Riemannian Geometry, Complex Manifolds, as well as a detailed theory of Semisimple Lie Groups and Symmetric
Author(s): Helgason, Sigurdur

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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

2.1.1 Try some yourself

Activity 14

Measurement of a ceiling gives a length of 6.28 m and a width of 3.91 m.

  • (a) Make a rough estimate of the area of the ceiling (the length times the width).


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2.2.1 Surfaces without boundary

Examples of surfaces without boundary are a sphere and a torus. Other examples are the following:

n-fold toruses

Figure 13 depicts a 2-fold torus and a 3-fold torus, with two and three rings respectively. An n-fold torus, for any positive integer n has n rings. (A
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1.5 Tips on character creation

  • Use a journal to build ideas for character.

  • Consider all the influences that go into the making of your character: age, gender, race, nationality, marital status, religion, profession.

  • Know about your character's inner life: what s/he wants, thinks, remembers, resents, fears, dreams, denies.

  • Know about your character's behaviour, what s/he wears, buys, eats, says, works at and plays at.


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Science and Religion on the Radio
Talk given by Martin Redfern as part of short course 2
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8.1 The differences between common law and civil law systems

Having explored the origins and development of the common law and its characteristics, the final part of this course will compare and contrast the common law with civil legal systems.

The terms common law system and civil law system are used to distinguish two distinct legal systems and approaches to law. The use of the term ‘common law’ in this context refers to all those legal systems which have adopted the historic English legal system. Foremost amongst these is, of course, the U
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2.6 Lines

Earlier, we found the equation of a line in the (x, y)-plane in the form ax + by = c, for some real numbers a, b and c, where a and b are not both zero. We now find an equivalent equation for a line in terms of vectors.

Let P and Q be two given points with position vectors p and q, and denote by ℓ the line that passes through P and Q. How can we find the position vector
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Vanderbilt launches test balloon in preparation for total solar eclipse research
Vanderbilt University is part of a national NASA project to give scientists a view of the eclipse from the edge of space. The high altitude balloon, launched by Vanderbilt, will carry a 12 pound payload or scientific instruments for research and a camera for live streaming. Follow Vanderbilt on Twitter: https://twitter.com/vanderbiltu, on Instagram: http://instagram.com/vanderbiltu andkeep reading »
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Introduction

This course will look at how pictures and diagrams can be used to represent information and ideas. In mathematics, science and technology (MST) subjects, we can often summarise how ideas or processes are connected much more neatly in a diagram than in words, or we can show how something looks and works by drawing a picture of it. This means that, as a learner, you need to be comfortable with pictures and diagrams. You need to learn how to read them – how to extract information from t
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Try some yourself

Activity 21

Without using your calculator solve the following calculations.

  • (a) 3 + 5 × 2 = ?

  • (b) 12 − 6 + 6 = ?

  • (c) 6 + (5 +
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Mathematical language
In our everyday lives we use we use language to develop ideas and to communicate them to other people. In this free course, Mathematical language, we examine ways in which language is adapted to express mathematical ideas. First published on Tue, 28 Jun 2011 as Author(s): Creator not set

5.1 Overview

The discovery that quantum mechanics permits the tunnelling of particles was of great significance. It has deep implications for our understanding of the physical world and many practical applications, particularly in electronics and the developing field of nanotechnology. This section introduces some of these implications and applications. Applications naturally involve the three dimensions of the real world, and realistic potential energy functions are never perfectly square. Despite these
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Except for third party materials and/or otherwise stated (see terms and conditions) the content in OpenLearn is released for use under the terms of the Creative Commons Attribution-NonCommercial-Share

7.3 Summary of Part F

The constitutional dimension of the EU has been continuously developing. It is influenced by changes both in the membership of the EU and by a desire to develop and strengthen the EU. Part of this development is reflected in the negotiations towards the adoption of a new EU constitution. This part of the unit has given you the opportunity to appreciate the complexity of this process. Whether the proposed new EU constitution merely consolidates existing legal provisions or whether it brings ab
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Further reading

A critical view of WTO from the point of view of developing countries is Das, Bhagirath Lal (1998) WTO Agreements: Deficiencies, Imbalances and Required Changes, London, Zed Books.

A well documented report that goes over much of the same ground as this unit is Oxfam (2002) Rigged Rules and Double Standards: Trade, Globalization, and the Fight Against Poverty, London, Oxfam [online]. Available from Author(s): The Open University

The Driving Forces Behind Plate Tectonics and The Three Types of Plate Boundaries
An animated, video, html, lesson about plate tectonics that includes Wegner's hypothesis, the Theory, the driving forces, the three plate boundaries, convection curreents, hot spots, and plate tectonic reconstruction.
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Marc Chagall's I and the Village, 1911
Discussion by Cheryl Stoever & Professor Jason Rosenfeld Download here.
Author(s): Art Mobs

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Episode 147: Azure Redis Cache with Saurabh Pant and Wade Wegner | Microsoft Azure Cloud Cover Show

In this episode Nick Harris and Chris Risner are joined by Wade Wegner and Saurabh Pant, Program Manager in the Azure Cache team.  In this episode Saurabh talks about the new Azure Redis Cache service.  The Azure Redis Cache service, currently in Preview, is based on the hugely
Author(s): Nick Harris, Chris

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