Oribi
An oribi is an African antelope. Some animals have developed skin colorings or markings that allow them to blend into their surroundings because they nearly match the colors or layout of their habitats.
Author(s): Gary M. Stolz

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Waterwheel Work
Students learn the history of the waterwheel and common uses for water turbines today. They explore kinetic energy by creating their own experimental waterwheel from a two-liter plastic bottle. They investigate the transformations of energy involved in turning the blades of a hydro-turbine into work, and experiment with how weight affects the rotational rate of the waterwheel. Students also discuss and explore the characteristics of hydroelectric plants.
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Spider crab
Spider crabs have a hard outer covering to protect them from predation. The legs and claws are also used for defense. Predators of the crab include many fishes, octopuses and sea otters.
Author(s): Katie Hale

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Professional Series for Educators (3)

In the third episode of our new series, we feature a selection of podcast channels from our category on educational news and items for professional educators. At our Podcast Directory for Educators, you can locate further details of all the featured podcasts, the associated website URLs, RSS feeds and iTun
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50 Mexican convicts escape
July 16 - Six people die and another 50 prisoners escape Mexican facility in U.S. border town after morning riot. Jessica Gray reports.
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Erythemal Index for August 2000 through July 2001: Full Earth
The Erythemal Index is a measure of ultraviolet radiation (UV) at ground level on the Earth. UV exists to the left of the visible spectrum and is divided into three components (UV-A, UV-B and UV-C). UV-B (290-320 wavelengths) is the most dangerous form of UV radiation that can reach ground level. Atmospheric ozone shields life at the surface from most of the harmful components of solar radiation. Chemical processes in the atmosphere can effect the level of protection provided by the ozone in the
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Le cerveau et le monde : Shining et après. Conférence d'Emmanuel Siety

Dans L’Image-temps, Gilles Deleuze voyait en Stanley Kubrick, à l’instar d’Alain Resnais, un cinéaste « de l’identité du monde et du cerveau ». En partant de Shining, nous questionnerons et prolongerons ce rapprochement en avançant trois autres noms de cinéastes explorateurs d’états limites du monde et de la conscience : David Lynch, Michael Haneke et Gus Van Sant.

Emmanuel Siety est maître de conférences en cinéma à l’université Paris 3 - Sor
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Onze zintuigen en ons oriëntatievermogen
Je ontdekt hoe we ons (kunnen) oriënteren en leert aan iemand uitleggen hoe de natuur kan helpen bij die oriëntatie
Author(s): Vlaams Ministerie Van Onderwijs En Vorming

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Haiti: Mother to Child
Living in the poorest country in the Western Hemisphere, most of Haiti's nine million people are subsistence farmers. Poverty and malnutrition are exacerbated by poor health care and a low vaccination rate.
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Two-Dimensional Vectors
Scott Starks

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Episode 106: Nothing To Eat: Famine and Its Consequences

Economic Historian Prof Cormac O Grada joins host Jennifer Cook to discuss famine, its causes and repercussions, and the human condition in times of mass food scarcity.