Learning outcomes

After studying this course, you should be able to:

  • explain how and why the optical spectrum of an active or starburst galaxy differs from that of a normal galaxy

  • explain how and why the broadband spectrum of an active or starburst galaxy differs from that of a normal galaxy

  • describe briefly the observed features of starburst galaxies and the four main classes of active galaxies (quasars, radio galaxies, Seyfert galaxies and blazars)

  • u
    Author(s): The Open University

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5.1 Pollution and loss of biodiversity

Unfortunately, halting the disappearance of species cannot be achieved simply by measures such as putting fences around special habitats and asking people not to pick the flowers or disturb the breeding birds. Many species are vanishing because of pollution. You probably have a good understanding of the meaning of this term, but it is variously defined. The Open University has a course on environmental control and public health, in which pollution is defined as the introduction into th
Author(s): The Open University

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The Perfect Machine
The author takes a semi-serious look at the world of computers, robots and androids in an attempt to find a recipe for the perfect machine. Described in this article are the possible attributes of the perfect machine and some of the problems it might raise
Author(s): Asimov, Isaac

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

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iTunes
This video discusses all the things you can do on your iPod and by using iTunes.  You don't need an iPod to use iTunes, iTunes are completely free.
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DOMAIN INDEPENDENT DESIGN THEORY
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Author(s): Aken, J. van

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Different Types of Clouds (Time-Lapsed Photography)
This two-minute video which is accompanied by upbeat music shows a series of different cloud types including Cirrus, Cumulus, Cumulonimbus, and Stratus clouds. This was a Featured Video on YouTube. (01:58)
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17.484 Comparative Grand Strategy and Military Doctrine (MIT)
This course will conduct a comparative study of the grand strategies of the great powers (Britain, France, Germany and Russia) competing for mastery of Europe from the late nineteenth to the mid-twentieth century. Grand strategy is the collection of political and military means and ends with which a state attempts to achieve security. We will examine strategic developments in the years preceding World Wars I and II, and how those developments played themselves out in these wars. The following qu
Author(s): Posen, Barry

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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

A Brief History of the Catholic Church
A brief history of the Catholic Church from Pentecost till today in the style of "The History Channel" or "The Discovery Channel." 
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Chapel Service - Week 3 - 23 February 2016 - Gary Millar - Luke 5-6
Gary Millar Chapel Sermon
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2.2 The inventive drive

What events and ideas spurred people to come up with thousands of inventions in the last 100 years?

Ron Hickman was a do-it-yourself enthusiast who damaged a chair being used to support a piece of wood he was sawing. Instead of merely being annoyed at the accident he set about designing and building a prototype of a combined workbench and sawhorse to prevent further damage to his furniture. This became the Workmate (Author(s): The Open University

Time-based computer aided architectural research for mapping techniques in multicultural space re-de
This paper shall explore the process of research for the development of time-based computer aided applications as an alternative for mapping techniques. As part of an on going research, it was determined the necessity of implementing computer design strategies for time-based mapping due to the complexity and real-time variability of multicultural societies within its chrono-geo-ghraphical constrains for architectural space re-definitions.
Author(s): Alejandro Arismendy Echeverri

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Programkids : Programmeren in het lager onderwijs
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Op deze website vind je heel wat info over het leren programmeren in de lagere school. Je vindt er een lijst van toepassingen (software, apps en sites) die je kan gebruiken in de klas.

Op de site kan je ook heel wat lesfiches downloaden. In deze …


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Record number of Americans in poverty
Summary of business headlines: 46 million Americans in poverty, according to U.S. census; "Super Committee" gets a warning; Best Buy warns; Wall Street ends higher.
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Computational Specification of Building Requirements in theEarly Stages of Design
We have been exploring computational techniques to help building designers to specify design requirements during the early stages of design. In the past, little has been accomplished in this area either in terms of innovative computational technologies or the improvement of design performance.The prospect of improving design productivity and creating a seamless process between requirements specification and formal design are our primary motivations. This research has been conducted as partof a l
Author(s): Akin, O., Aygen, Z., Cumming, M., Donia, M., Sen,

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Antisense regulation of gene expression

The term antisense refers to the use of a nucleic acid that is complementary to the coding (i.e. ‘sense’) base sequence of a target gene. When nucleic acids that are antisense in nature are introduced into cells, they can hybridise to the complementary ‘sense’ mRNA through normal Watson-Crick base pairing. Synthetic antisense DNA chains as short as 15–17 nucleotides in length have been used to block specific gene expression by either physically blocking translation of the tar
Author(s): The Open University

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Banksecrets : Ontdek de geheimen van je bank
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Op deze site vind je de "gevaarlijke" investeringen van je bank terug.

Wanneer je naar de site gaat, heb je de mogelijkheid om je land te selecteren.

Van jouw land komt dan een lijst op het scherm met alle banken die er aanwezig …


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From Real to Cyber Reality
Human activity takes place in two planes, at two levels. Practical activity is present in one of the planes, the other level is occupied by purely cognitive activity. When observing sufficiently long sequences of practical and cognitive activities, one notices transitions between them, which prove true the suspicions of their functional relationship. Because on both of these planes of human activity there is always one and the same element present - an informative element - which on the first pl
Author(s): Asanowicz, Aleksander

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Chinese Influx at Thunderbird
Chinese enrollment soars at Thunderbird School of Global Management in Glendale, Arizona. http://www.thunderbird.edu
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Bonjour Asia! Club Med chases the new jet set
Sept. 3 - Club Med is aiming to capture the China market as tourism booms in the world's number two economy. CEO and Chairman Henri Giscard d'Estaing talks about its expansion plans on the mainland.
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