6.3 Where are they now?

At the beginning of this course we asked whether active galaxies really are in a class of their own or whether most galaxies go through an active stage at some point in their lives. We can shed some light on this by looking for evidence that active galaxies evolve.

The first question is where AGNs came from. No-one knows how supermassive black holes formed and the question is intimately tied up with the origins of galaxies which is itself a vigorously debated topic. But it is likely tha
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Mountain Region of the United States
This is a general video about the mountain region of the United States. Students would benefit of having a map to help them understand where this region is located and how the rivers flow from it. (Running Time 2:56)
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1.5 Obesity

At the time of writing (2004) 20% of the adult population of the UK is classified as obese. The number of obese children has doubled since 1982, 10% of six year olds and 17% of fifteen year olds are now classified as obese. As shown in Table 4, obesity is recognized when the BMI exceeds 30 and occurs quite simply when energ
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Zero Robotics Kick Off
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Reading Rainbow: The Day Jimmy's Boa Ate the Wash
LeVar visits a pet store, sees a tarantula and a boa constrictor, and learns characteristics of each.  Kaleena Kift and Laura Hicks read the featured story of a little girl telling her mother about a school field trip to a farm and chaos that resulted when a classmate brought his pet snake to meet the farm animals.  ( 27:07)
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French Lesson - Dans la Salle de Bain (In the Bathroom), Part 1
Learn French by learning vocabulary words for items in the bathroom. As the native French speaker recites the words, the words and the appropriate images are highlighed by a red circle. There is no English spoken. Each French phrase is spoken once. For beginning to intermediate learners. This video features a picture within the picture, so the viewer may want to open the video to 'full screen' to see the smaller image.
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5.2 Cryogenic liquids and ionising radiation safety

5.2.1 Cryogenic liquids

There are a number of hazards associated with cryogenic liquids, the main one being that when accidentally released the liquid expands hugely to form a gas (600 times in the case of nitrogen). The formation of such a large volume of gas can lead to asphyxiation in confined areas.

The other main hazard is cold burns (frostbite).

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Modelaci?n de Actividades [Modeling of Activities]
Despite increasing interest in the functionality and humanization of architecture, scarcely the occupation of buildings are studied and it lacks methods to represent activities in the spaces. By this reason, it proposes a system such integrates simulation of processes and virtual modeling software, to program the behavior of tri-dimensional characters based on the probabilistic evolution of events, testing this approach in the study of emergency services of hospitals. It describes the procedure
Author(s): Alvarado, R.G., Abufarde, F.B., Moreno, P.R. and

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2.3.1 Try some yourself

1 A piece of computer software is to be developed by a team of programmers. It is estimated that a team of four people would take a year. Which of the following times is the length of time taken by three programmers?

  A 1 year
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Photography 130 panel discussion
Photography 130 panel discussion. Thursday 16 March at RMIT Gallery - exploring 130 years of photography at RMIT with Shane Hulbert, Pauline Anastasiou, John Billan, Gale Spring, and Alex Syndikas.
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The Slaves That Built the White House
(08:24)
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International Trends in Problem-based Learning Facilitator Development

Authors: 
Dr Feroza Amien