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Introduction

We are used to seeing spectacular astronomical images in the press and on the internet. This course gives an in-depth introduction to two of the most important instruments used to create these images and explore the science behind them – telescopes and spectographs.

This course is drawn from the preparatory work for the practical residential school at the Observatori Astronomic de Mallorca. The course image shows a student at work in one of the telescope domes at the Observatori.

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How Can Apple Remain on Top?
Is Apple’s latest batch of new products enough to keep the company moving forward, or is it finally losing momentum after years of ruling the gadget world?
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How to Read Aloud to Children-Julia Fowlkes Reads The Stray Dog
This video is a useful resource for teachers to learn effective strategies for using read alouds in the elementary classroom. The narrator is Julie Fowlkes, the lead trainer from BMABF. Her voice is animated and gives background knowledge before reading. College professors could use this in literacy instruction.  (6:49)
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Environmental responsibility
Complex questions of environmental responsibility are increasingly raised in times of change and uncertainty. The tracks on this album illustrate the need for nurturing a fresh sense of care for our environment as well as more appropriate forms of accountability. We demonstrate the necessity of addressing issues of entitlements, rights, obligations and duties if we are to critically and carefully shape our values in doing environmental responsibility and being environmentally responsible. This m
Author(s): The iTunes U team

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Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2

Talks At Google: Adrienne Mayor, "The Amazons"
Prof. Adrienne Mayor of Stanford visited Google's Cambridge, MA office to discuss her book, "The Amazons: Lives and Legends of Warrior Women across the Ancient World". It is the first comprehensive account of warrior women in myth and history across the ancient world, from the Mediterranean Sea to the Great Wall of China. Adrienne Mayor is an independent folklorist/historian of science who investigates natural knowledge contained in pre-scientific myths and oral traditions. Her research looks
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2.1 Introduction

In all the analysis of stellar properties discussed so far we have made an implicit assumption - that light emitted by a star is not changed between its emission and its arrival outside the Earth's atmosphere, except by the inverse square law (i.e. it is reduced by a factor of d2, where d is the distance to the star) and by the Doppler effect. However, this may not be the case.

Author(s): The Open University

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2.1.2

Activité 9

1. Look at the following icons you would find in a hotel brochure. Find the English equivalents of the French words and phrases.

Trouvez les équivalents anglais

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7.2 The eubacterial chromosome

Some of the diverse roles of chromatin components can be illustrated by examining the E. coli chromosome. Like most prokaryotes, E. coli has a single chromosome consisting of a single double-stranded circular DNA molecule. There is no nucleus present, but the E. coli DNA is within a discrete entity in the cytoplasm called the nucleoid. The nucleoid contains a multitude of proteins and is in close proximity to the ribosomes, where translation occurs. In addition to
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References

Cowie, F. and Bradney, A. (2000), English Legal System in Context, London, Butterworths, pp. 88–90.
‘Extending and developing your thinking skills’, Open University Student Toolkit 9.
Slapper, G. (2000) ‘Castles built on law’, New Law Journal, 23 June.
Slapper, G. and Kelly, D. (2003) The English Legal
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A Shark's Entire Body is an Ear
Great whites have two lateral lines running from their complex ears all the way down both sides of their body. Because of them, they can sense the slightest vibrations of a seal from hundreds of feet away. (04:33)
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7.4 Proteomics

Traditionally, the study of the biochemistry or structure of a protein necessitated its purification to a high degree. The development of protocols for cloning, manipulation and expression of genes greatly facilitated this kind of study, as will be clear to you from the previous section. In recent years, a number of high-throughput techniques have, to an extent, obviated traditional approaches and permit simultaneous analysis of all the expressed proteins in a cell or organism, known as the <
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Conclusion

This free course provided an introduction to studying Mathematics. It took you through a series of exercises designed to develop your approach to study and learning at a distance and helped to improve your confidence as an independent learner.


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3.1 Alternative content

Assistive technology can give access only to whatever is on the screen as part of the eLearning material; it doesn’t provide any alternative content, unless this is specifically added. For example, a screen reader cannot interpret visual content but it can read a description if one has been provided.

Multimedia content might need to be supplemented with the same content in other formats. Deaf students need transcripts of audiovisual content. If the video is an interview, a simple tran
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Learning outcomes

After studying this unit you should be able to:

  • define the broad issue of children as citizens.


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2 Solar thermal energy

Solar heating of trapped air, water and solids has been used for centuries, but modern architectural design can enhance all three effects for space heating, hot water supply and heat storage. Such passive solar heating relies on short-wave radiation being absorbed by materials so that they heat up and then slowly re-emit long-wave radiation. The most obvious example is inside a greenhouse, where solar radiation that passes through the glass heats the inside air to temperatures well abo
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Lecture 14 - 5/2/2007
Lecture 14
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Beyond the math visualization - Geometrica and Stochastica
Mathematically controlled imaging process provides attractive results because of its infinite scaling capabilities with some other elements that contribute to the visualization. Its global/local and precise manipulation of parameters holds potential for realizing an unpredictable horizon of imagery. When it meets the artist's taste, this method could be a strong enough system of creation, and I have been producing images using the surfaces of hyperbolic paraboloid. On the other hand, a method ab
Author(s): Abe, Yoshiyuki

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Le Cormoran huppé

Le Cormoran huppé - Observations éthologiques de Phalacrocorax, a. aristotelis (L)

L'île de Houat (Morbihan) et ses falaises granitiques est, avec les îlots qui l'entourent, le site le plus méridional du littoral atlantique français où se reproduisent les cormorans huppés. On y observe les parades prénuptiales, le comportement de défense du territoire et de formation du couple, les parades nuptiales et la construction du nid, enfin l'accouplement, avec le cérémonial et
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Ronald Reagan Delivers Farewell Address
In this audio clip, on January 11, 1989, President Ronald Reagan, who at nearly 78, was the oldest person ever to hold the nation's highest office, gave his final address to the American people. (1:53)
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Pope urges Muslim leaders to condemn religious-based violence
Pope Francis, in a speech to Vatican diplomats on Monday, urged religious leaders to "condemn all fundamentalist and extremist interpretations of religion," following last week's attacks in Paris. Rough Cut (No reporter narration). 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 a
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