Lever an Obelisk
Investigate the mechanical advantage of the lever in this interactive activity from the NOVA Web site.
Ingredients for Life: Carbon
This video segment adapted from NOVA illustrates why carbon is at the center of life on Earth. It also asks whether carbon-based life might exist on other planets.
This illustrated essay from the NOVA Web site answers questions about irregularities in the tides.
Think Like Einstein
This interactive activity from the NOVA Web site challenges you to think like Einstein and understand how time travel might be possible.
A Year's Wage for Three Peaches: A Black Man Tells of Exploitation in the Late 19th century South
The harsh brutality of race relations in the late nineteenth-century South was sometimes best expressed through small incidents. For William Robinson, the story that best encapsulated his own experience growing up African-American in rural Georgia in the 1880s involved three peaches. He was interviewed by oral historian Charles Hardy in 1983 when Robinson was 103 years old. Apparently, some ninety-five years earlier when he was eight years old, three black boys sneaked into a peach orchard on th
"A Perfect Hailstorm of Bullets": A Black Sergeant Remembers the Battle of San Juan Hill in 1899
The best-known image of the Spanish-American War is that of Teddy Roosevelt on horseback charging with his Rough Riders up San Juan Hill in Cuba. But not only was the role of the Rough Riders exaggerated, it also displaced attention from the black soldiers who made up almost 25 percent of the U. S. force in Cuba. Indeed, the Spanish troops, who called the black soldiers "smoked Yankees," were often more respectful of the black troops than were the white officers who commanded them. Here Sergeant
A Georgia Sharecropper's Story of Forced Labor ca. 1900
At the turn of the century the group of black women most subject to sexual exploitation and abuse were those who lived under the system of quasi-slavery known as "peonage."Under contract labor laws, which existed in almost every southern state, a laborer who signed a contract and then quit his or her job could be arrested. The horrors of this system of forced labor (as well as the equally horrific system of convict labor) are detailed in this stark, turn-of-the-century personal account of life u
Newton's Third Law of Motion: Astronauts in Outer Space
In this video segment adapted from NOVA, NASA learns hard lessons from the first American attempt to do work while "walking" in space. The video also explores Newton's third law of motion.
Using online role play to teach internet safety awareness
This paper reports on an evaluation of Net-Detectives, a creative online role play activity aimed at 9–12 year olds. Net-Detectives forms part of Kidsmart, an Internet awareness programme aimed at school children. It was evaluated through a multiple method data collection using questionnaire surveys, follow up telephone interviews with teachers and observation in use in three UK schools during the summer term of 2003. All sources of data collected agreed that a number of benefits arise from p
Computer Assisted Assessment in Elementary Algebra
Experiences and points of view from the APLUSIX project about Computer Assisted Assessment in Elementary Algebra,reviewed article for online journal
Incorporating e-learning into a Local Government Authority Context: Evaluating Developers' Perspecti
In this paper, we describe the evaluation of an e-learning project. The Learning Ladder developed a number of elearning modules for local government staff on recurrent working practices. The modules feature the use of short video clips as a means to support and encourage organisational learning. We report on one part of the evaluation: namely, the qualitative analysis of data from developers. We focus on three aspects: developers perceptions of video clips for learners to reflect upon example
Virtual Maths, Shapes, Space and Measure, Sine, Cosine, and Tangent
Interactive simulation, formulae for sine, cosine and tangent
Assessing Students' Performance in
Distance Education Courses
ARCADE is a project aimed to develop an integrated software platform for authoring and delivery of Internet-based distance courses covering the university needs. Unified Modeling Language (UML) and Unified Software Development Process were applied as a basis for the project development. The Assessments and Assignments package provides computer supported instructional feedback (tests, projects, essays, problems). The IMS Question and Test Interoperability specification (QTI) defines the basic str
Insight into Practical Utilization of Knowledge Management Technologies
The focus of knowledge management (KM) has shifted in the last few years towards the ways in which knowledge is created and shared. Nevertheless, KM technologies continue to be an important issue in KM practices. The present paper focuses on the technological solutions applied in the organizations at different stages of the knowledge management life cycle. On the bases of an overview of the knowledge management tools and technologies, the paper emphasizes on the most popular KM applications foun
Jobless claims at two-year low
Signs of an improving U.S. economy is fueling hope ahead of the holidays, but a surprise drop in new home sales is a reminder the recovery remains sluggish.
Utopian Hope and Apocalyptic Religion
Editor's note: The original event recording started slightly after the beginning of the introduction by Professor Lord Meghnad Desai. Where does the utopian impulse in politics originate, and does it have a future? John Gray argues that though they often claimed to be rooted in a scientific analysis of history and society the revolutionary political movements of the past were informed by a utopian vision which derives from religion. Is the age of secular utopianism over, and if so how will relig
Garibaldi: the patriot as global hero
The Italian revolutionary leader Giuseppe Garibaldi was not only worshipped as national hero in his country but he was also a hugely popular global figure in his lifetime - an estimated 500,000 people turned out to greet him on his arrival in London in 1864. The lecture, which marks the bicentenary of Garibaldi's birth, examines the charismatic leader's emergence as global symbol in the context of nineteenth-century globalization processes, developments in mass media, and political conflicts.
Wealth Strategies: Specialized chemical M&A to heat up
Nov. 28 - Peter Hall, partner at M&A firm Valence Group, says specialized chemical companies in the renewable energy, food & nutrition, or oil & gas spaces will see a pick up in mergers in coming months.
Human Rights Day 2013: Rights of Refugees
In celebration of Human Rights Day, the Law Library of Congress hosted a panel discussion on refugee rights. Speaker Biography: Peter Roudik is director of the Global Legal Research Center at the Library of Congress. Speaker Biography: Olivia Bueno is associate director of the International Refugee Rights Initiative. Speaker Biography: Linda Rabben is a developmental editor at the US Institute of Peace in Washington, D.C. Speaker Biography: George Sadek is senior legal information analy
Office-Holders in Modern Britain: Volume 8 Foreign Office Officials 1782-1870
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