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24.04J Justice (MIT)
This course explores the ideal of social justice. What makes a society just? We will approach this question by studying three opposing theories of justice—utilitarianism, libertarianism, and egalitarian liberalism—each foundational to contemporary political thought and discourse.
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2.5 Defining surfaces

In Section 2.1 we gave a provisional definition of a surface. The aim of this section is to formalise that definition. To do that, we need to specify three further requirements of a candidate topological space, beyond those given in the provisional definition.

The first requirement is that the surface should be in
Author(s): The Open University

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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

6.5 Training at high altitude

Many of the world's best endurance athletes train at high altitudes – a long way above sea level – to improve their performance. At high altitudes there is less oxygen in the air and it's believed that the body has to work harder to extract what little oxygen remains. When the athlete returns to lower altitudes, their body retains the ability to use oxygen more efficiently and their performance will have improved.

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Copyright © 2013 The Open University

Examining life at nano level / Paul Thomas

Examining life at nano level / Paul Thomas. In "Images & mirages @ nanosciences", colloque international organisé par le Laboratoire Interdisciplinaire Solidarités, Sociétés, Territoires (LISST) de l'Université Toulouse II-Le Mirail, le Centre d'Élaboration de Matériaux et d'Études Structurales (CEMES) rattaché à l'Institut de Physique du CNRS et le Laboratoire de Physique et Chimie de Nano-Objets (LPCNO) de l'INSA Toulouse. Université Toulouse II-Le M
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Heidi Klum launches new perfume
Sep. 29 - Heidi Klum adds "Shine" to her product line with release of new perfume. John Russell reports.
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Endangered Species Game
This OLogy board game is a fun-filled way to help kids understand that once a species is extinct, it's gone forever. And that there are lots of things they can do to help preserve biodiversity. The activity begins by introducing kids to the difference between endangered and extinct animals, as well as to the U.S.'s Endangered Species Act. A colorful game board is included as a printable PDF file. You'll need a pair of dice and a marker of your choosing for each player. Simple directions for asse
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2011 Duke Summer Reading Program - "Eating Animals"
A special presentation of DukeReads in Page Auditorium on campus at Duke University with author Jonathan Safran Foer, author of "Eating Animals."
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Vulvar Cancer: Often Misdiagnosed as an Abscess
Vulvar cancer is rare, with around 4,000 women in the United States diagnosed each year. Doctors often misdiagnose vulvar cancer as an abscess, but if caught early it is highly curable with little disfigurement or sexual dysfunction. Charles Levenback, M.D., and Anuja Jhingran, M.D., both professors in the Department of Gynecologic Oncology at the University of Texas MD Anderson Cancer Center, discuss the basics, diagnoses and treatment of vulvar cancer.
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The Span of a Set of Vectors
The Span of a Set of Vectors. In this video, the instructor looks at the

notion of a span of a vector set. He works in R2 just to keep things simple, but the results can be generalized! The instructor demonstrates how to justify that two vectors do in fact span all of R2.

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Egyptische Rijk : Werkblaadjes
Egypte.png

Het Egyptische rijk in een notendop.  In vijf werkblaadjes, geïlustreerd met afbeeldingen, korte teksten en kaartjes, vind je:

  • de landbouw
  • de farao
  • de samenleving
  • de …

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South Sudanese Say No Tribalism, Survey Finds
After celebrating their independence, South Sudanese began looking inward. The Pulitzer Center sat down with Traci Cook, the resident director in South Sudan for the National Democratic Institute who conducted a survey in South Sudan. Cook expressed Sudan's need for efforts regarding nation building. The main issue that was shown through Cooks survey was the negative view of tribalism. Tribalism in South Sudan creates an imbalance of power and division of the Sudanese people. The surveyed showed
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Charles Schreyvogel, primary source of Ford's cavalry charges
William Howze
This dissertation demonstrates John Ford’s use of images from a wide range of sources in many of his films. In particular, it examines Ford’s use of images based on the conventions of American […]

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The Keck Telescope
This video of the Keck Telescope on Mauna Kea, Island of Hawaii was produced to acknowledge the contributions of the W. M. Keck Foundation including its support for the National Academies' Keck Futures Initiative. 
More information can be viewed at www.kecktelescopeexhibit.org
The video, which contains original high definition footage shot by Moey Inc specifically for this project, shows the telescope in action while introducing the viewer to an overview of the research work bei

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The Paper Crane
This video includes text, narration, and pictures for the story The Paper Crane by Molly Bang. The book is part of the suggested reading material listed on the corestandards.org website for grades K-1. (04:10)

Sample performance tasks for this book include:
Students identify words and phrases within Molly Bang’s The Paper Crane that appeal to the senses and suggest the feelings of happiness experienced by the owner of the restaurant (e.g., clapped, played, love

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Radio Telescopes
The Sun and stars emits radio waves — not just visible and infrared light. In the 1930s, Karl Jansky built the first devise to "listen" to the sun, collecting radio waves from far off stars and focusing them onto a detector. This invention provided astronomers with a completely different view of the Universe — prompting the discovery of radio stars, quasars, and black holes.

This video features a model of the Algonquin Radio Observatory (ARO), located in Ontario's Algonq

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Sounds of the Universe Captured by Radio Telescopes
All of these sounds were acquired with amateur radio telescopes. (01:02)
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Python vs Alligator
The Burmese Python is taking over as one of the Florida Everglades most dangerous wild animals.  This aggressive Burmese Python takes on an alligator. (3:00)
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The Wombat
The Wombat is a Marsupial that can be found in Australia. They are quadrupeds who are herbivores and are, for the most part, nocturnal creatures that reside in mountains and forests. They are exclusively found in Australia and, one interesting fact about these furry little animals is their backwards facing pouch, which evolved in order to avoid dirt gathering while digging and burrowing. (3:06)
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Early Recognition of Development Problems
Do you know all the ways you should measure your childs growth? We naturally think of height and weight, but from birth to 5 years, your child should reach milestones in how he plays, learns, speaks and acts. A delay in any of these areas could be a sign of a developmental problem, even autism. The good news is, the earlier its recognized the more you can do to help your child reach her full potential. Early recognition of developmental disabilities such as autism is key for parents and provider
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How To Study!
This video is three minutes and has some tips about studying for a test and that includes creative thinking, the use of only music with 60 beats per minute, and is of best use for older students. The narrator promotes his own site a great deal.
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