Black Hebrew Israelites - Wikipedia Article
Black Hebrew Israelites (also Black Hebrews, African Hebrew Israelites, and Hebrew Israelites) are groups of people mostly of Black African ancestry situated mainly in the United States who believe they are descendants of the ancient Israelites. (17:37)

Author(s): No creator set

License information
Related content

Who's Afraid of a Big Black Hole?
This video is from the BBC. Black holes are one of the most destructive forces in the universe, capable of tearing a planet apart and swallowing an entire star. (59:07)
Author(s): No creator set

License information
Related content

Journey Through The Milky Way | | COSMOS AMAZING
Beautiful, awe-inspiring computer-animated images of a journey through space. (43:10)
Author(s): No creator set

License information
Related content

Charles Guiteau: The Unstable Assassin
In this video clip, learn more about how James Garfield, an extremely popular president, was gunned down by an extremely unstable former employee, Charles Guiteau. (04:34)
Author(s): No creator set

License information
Related content

John Wilkes Booth: The Actor/Assassin
John Wilkes Booth was born May 10, 1838 in Bel Air, Maryland. At age 17, he made his acting debut. In the 1850s, he joined the No-Nothing Party. During the Civil War, he was a Confederate secret agent. In March of 1865, his attempt to kidnap President Lincoln failed. On April 14, 1865, he assassinated Lincoln at Ford Theater. Booth was killed on April 26, 1865 in Port Royal, Virginia. In this video clip, learn more about John Wilkes Booth. (5:31)
Author(s): No creator set

License information
Related content

Journey Through Space HD
Teachers will want to preview this first. You may also wish to push the 'play' cursor to access different parts of the video. This is a slow-moving video that could be used in the following ways: as a 'teaser' to introduce students to the science of astronomy, to show students the rotation of the Earth, to show younger students the 'night' side of the Earth, and to show students the what the planet looks like at night powered by electricity. According to the producer, this is a marvelous journey
Author(s): No creator set

License information
Related content

Indira Gandhi: Betrayed by Bodyguards
In this video clip, learn more about India's first female prime minister and how she led the nation for 15 years only to be shot down by her own bodyguards. (5:12)
Author(s): No creator set

License information
Related content

A New Treatment for Acne?
For more information please visit http://www.leedsmet.ac.uk
Author(s): No creator set

License information
Related content

Johns Hopkins HCPI announcement -- Dec. 6, 2012
Johns Hopkins University President Ronald J. Daniels, at a news conference on Dec. 6, 2012, announces that the university will contribute $10 million over five years to support neighboring communities as part of the Homewood Campus Partners Initiative. For more information, see http://hub.jhu.edu/2012/12/06/homewood-community-announcement
Author(s): No creator set

License information
Related content

Breakingviews: Dear Jon
Nov 16 - Richard Beales and Breakingviews columnists discuss criticism of Jon Corzine's legacy after the collapse of MF Global and the likelihood that two overlapping U.S. regulators will ever merge.
Author(s): No creator set

License information
Related content

China's online shopping war leaves big boys bruised
Nov. 20 - About 200 million people are shopping online in China, leading to an explosion in e-retailing sites. But success is not guaranteed as competition grows increasingly cutthroat. Tara Joseph reports.
Author(s): No creator set

License information
Related content

How to Hold and Swing a Baseball Bat
Keith Stephens explains how to hold the baseball bat if you are right or left-handed and explains the steps to take while swinging a baseball bat.
(01:41)

Author(s): No creator set

License information
Related content

Topic 1: Introduction | Economics 2450A: Public Economics
Raj Chetty Fall 2012
Author(s): No creator set

License information
Related content

2 The atmospheric and ocean flows

We now know that PBDEs end up in the Arctic through their physical transport by the winds, the ocean and the rivers of the world. All three mechanisms are important, but the most rapid carrier is the wind. The basic principle of global atmospheric circulation is simple: warm air rises and cold air sinks. The warming effect of the Sun is much greater at the equator than at higher latitudes and so the air is much warmer and it rises. At high latitudes the air cools and it sinks. This drives a h
Author(s): The Open University

License information
Related content

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

1 A climate change icon

The polar bear has become an international climate change icon. But how much is known about this bear, its habitat and life? This unit will talk about the role of language, but by way of introduction how about the name of this bear? To me it is the polar bear; to a German it is an Eisbär (ice bear) and to a French person it is an ours blanc (white bear). In these three examples the bear is referred to as polar, white, or an ice bear – eminently sensible. The Latin name for th
Author(s): The Open University

License information
Related content

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

Learning outcomes

By the end of this unit you should be able to:

  • appreciate how chemical processes in the rest of the world affect the Arctic environment and the species inhabiting it;

  • recognise the physical processes that determine atmosphere and oceanic flows in the Arctic;

  • appreciate the scientific research process and the use of scientific evidence;

  • use quantitative scientific evidence to examine the link between atmospheric carbon dioxide levels a
    Author(s): The Open University

    License information
    Related content

    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

2 2 Definitions: energy, sustainability and the future

What do we mean by energy and sustainability, and what is meant by future?

The term energy has a long history but the standard scientific definition today is that energy is the capacity to do work. The term power is related to energy and its definition is power is the rate of doing work. The two are linked together by the simple formula

energy = power x time

The term sustainability is not so simple to define but there is perhaps no better
Author(s): The Open University

License information
Related content

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

1 1 Why sustainable energy matters

One of the greatest challenges facing humanity during the twenty-first century must surely be that of giving everyone on the planet access to safe, clean and sustainable energy supplies.

Throughout history, the use of energy has been central to the functioning and development of human societies. But during the nineteenth and twentieth centuries, humanity learned how to harness the highly-concentrated forms of energy contained within fossil fuels. These provided the power that drove the
Author(s): The Open University

License information
Related content

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

Introduction

This unit will facilitate your exploration of a viable way of life by identifying actions that individuals can take to reduce environmental impacts while sustaining community well-being. You will be required to develop a worked example of how to go about doing this based on your own experience. In particular, you will explore how identifying a balance between reducing environmental impacts and sustaining community well-being should be an ongoing Author(s): The Open University