2.2.1 Normal galaxies

Normal galaxies are made up of stars and (in the case of spiral and irregular galaxies) gas and dust. Their spectra consist of the sum of the spectra of these components.

The optical spectra of normal stars are continuous spectra overlaid by absorption lines (Figure 1). There are two factors to consider
Author(s): The Open University

License information
Related content

Copyright © 2016 The Open University

"The trees of the field shall clap their hands"(Isaiah 55:12): What does it mean to say that creatio
Dr Mark Harris : Seminar
Author(s): No creator set

License information
Related content

Speak Italian with Your Mouth Full - Lesson 7, part 1 (opening lecture)

ESG seminar on Italian language, culture, and food: ES.S41, Lesson 7, part 1 (1 of 3).


Author(s): No creator set

License information
Related content

Harvard's green commitment
Harvard's fall 2008 sustainability celebration included panels, tours, fairs, film screening, coffee-house style discussions - and the very convenient appearance of former Vice President Al Gore.
Author(s): No creator set

License information
Related content

Repeated Addition and Multiplication
Students will learn that repeated addition is the same as multiplying.  Whenever you have equal groups, you can add to find the sum or multiple to find the product.  User clicks through the slides. 

Author(s): No creator set

License information
Related content

11.1 Five steps to invention

I've looked at what motivates people and organisations to invent. I'll look more closely now at what's actually involved in inventing something.

Wherever invention occurs, whether with a lone inventor or in a creative team within an organisation, there seem to be common factors involved. There have been many attempts over the past 100 years to explain the creative process that occurs while people are attempting to solve problems. I'm going to combine ideas from two such models of the st
Author(s): The Open University

License information
Related content

Copyright © 2016 The Open University

Shirley Temple reciting poetry by Rose Fyleman
From the 1935 film Curly Top. Elizabeth (Shirley Temple) recites two short poems for her uncle Edward (John Boles). The first poem, "Before," was published in Punch magazine in 1919, with the author named simply as "R.F." -- probably Rose Fyleman, a British children's poet who also wrote the second poem Shirley recites, entitled "Singing-Time." (01:04)
Author(s): No creator set

License information
Related content

3.1 The expansion of the right to confidence

While there is no common law right to privacy, the law relating to breach of confidence has been expanded to a degree which suggests that privacy claims are now being given greater protection. The right to confidence has been expanded in recent cases such as Douglas and Others v Hello! Ltd (2001). In this case the Court of Appeal ruled that individuals have a right to personal privacy which was grounded in the doctrine of confidence. Michael Douglas and Catherine Zeta-Jones had granted
Author(s): The Open University

License information
Related content

Copyright © 2016 The Open University

3.1 Introduction

As this history might suggest, defining and conceptualising rights is not straightforward. This section aims to provide a working definition of ‘rights’ and introduce some important debates about rights. It aims to supply some conceptual tools to use when the discussion moves to the sphere of international politics.


Author(s): The Open University

License information
Related content

Copyright © 2016 The Open University

Underlining Titles
Titles are often underlined with large books, TV shows, movies, games, works of art and album titles. Learn from a tutor about every instance in which titles need to be underlined in this clip. (01:10)


Author(s): No creator set

License information
Related content

Introduction

This course introduces the important distinction between our analogue world of colour, sound, taste and touch and the computer's peculiar binary world of digital entities. Concepts of the analogue universe in which we live and the digital world we create are explained. The way in which information, in the form of text, still and moving images, and sound can cross the boundary from the analogue universe into a digital world is explored.

This OpenLearn course provides a sample of Level 1
Author(s): The Open University

License information
Related content

Copyright © 2016 The Open University

4.4 Ribozymes

Several types of RNA have been shown to have catalytic activity directed towards strand cleavage. They were originally observed in the case of ‘self-splicing’ introns, i.e. segments of the immature non-protein-coding mRNA that remove themselves during the formation of mature RNA, as shown in Figure 20a. The term ribozyme has been coined to describe all such catalytic RNA molecules.

Author(s): The Open University

License information
Related content

Copyright © 2015 The Open University

Drinking Coffee in Space
Drinking from a cup out in space is very difficult to do. Dr. Don Pettit demonstrates a zero-gravity coffee cup designed aboard the International Space Station. (02:41)
Author(s): No creator set

License information
Related content

1.3 Minerals and rocks

To begin with, it is necessary to explain the meanings of the two terms ‘minerals’ and ‘rocks’.


Author(s): The Open University

License information
Related content

Copyright © 2016 The Open University

Gesture Drawing with Chris Warner (Otis College)
Otis faculty Chris Warner teaches helpful techniques for Gesture Drawing used in Life Drawing class
Author(s): No creator set

License information
Related content

Introduction to Social Welfare
With increasing public interest in social welfare, this course gives a general introduction to social welfare, and is appropriate not only for students that are majoring in social welfare, but also to students from other majors
Author(s): Creator not set

License information
Related content

Rights not set

Modeling irregular and complex forms
Computational technologies provide arguably the first real opportunity architectural design has had for a comprehensive description of built form. With the advent of affordable computer-aided design systems (including drafting, modeling, visualization and simulation tools), architects believe they can be in full control of geometric aspects and, through these, of a wide spectrum of other aspects that are implicit or explicit in the geometric representation. This belief is based primarily on the
Author(s): Alexander Koutamanis

License information
Related content

Rights not set

Keep on learning

Study another free course

There are more than 800 courses on OpenLearn for you to choose from o
Author(s): The Open University

License information
Related content

Copyright © 2016 The Open University

Introduction

Much of what is most important about management is interpersonal, how we deal with others. Awareness of our own and others’ interpersonal skills can help us enormously in dealing with the work tasks we are responsible for.

This unit is an adapted extract from Y159 Understanding management, a course which is no longer taught by The Open University, but which was part of our Openings Programme which has been replaced by our Access modules. This unit gives a good idea of the level
Author(s): The Open University

License information
Related content

Copyright © 2013 The Open University