Introduction to Friction
Introduction to friction - Khan Academy Presents: Correction of definition of "normal force" and an introduction to the coefficient of friction. Mr. Khan uses computer software for demonstration. (09:24)
Space School: Jupiter
This six minute contains facts and images about Jupiter. It is very well done.
Space School - Earth
A fragile blue marble floating through space, Earth may seem small, but is unlike any planet ever discovered. (06:27)
Space School - Venus
Concealed underneath the thick, fluffy clouds of Venus sits one of the most violent planets in our solar system. (04:25)
Space School - Strange Things In Space
Far beyond Earth in the endless expanses of space, mysterious objects are hiding: black holes, quasars and dark matter. (04:57)
Space School - Uranus
This is a five-minute video clip focusing on the mysteries of Uranus; the seventh planet of this Solar System.
1 107 Post Alpha Bits Cereal, 1970s
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This health education program reviews the types of muscles, how they function, and the various injuries and diseases that can harm them. This is a MedlinePlus Interactive Health Tutorial from the National Library of Medicine, designed and developed by the Patient Education Institute.
Roof Design and Construction - Quiz
Pupils will know terms relating to roof construction, understand different types of roof structure and construction, revise material.
Singapore Math: Word Problem With Cookies
Khan Academy Present a word problem with cookies (13:06) Sal Khan uses computer software and different colors for demonstration.
Singapore Math: Grade 3- Simple Word Problem
Khan Academy Presents: The sum of and difference between 2 numbers. (14:26) Sal Khan uses computer software and different colors for demonstration.
A lecture by Traian Băsescu, President of Romania (in English)
Editor's note: President Băsescu's speech is translated to English, the response and Q&A session that follow are also in English. | Traian Basescu is president of Romania. He was first elected to the post in December 2004, and was re-elected to a second 5-year term in 2009. He has previously served as mayor of Bucharest, and minister of transportation in the Ciorbea, Vasile, Isarescu, Roman and Stolojan governments. Prior to joining the government, he was a marine officer and merchant navy capt
Preventing Financial Meltdowns
In this lecture, Tim Harford, the author, radio presenter and newspaper columnist looks at the lessons we can learn from the financial crisis and how the collapse of Lehman Brothers has close parallels in disasters such as Three Mile Island and Deepwater Horizon. This lecture marks the launch of Tim Harford's new book Adapt: How Success Always Starts With Failure. Tim Harford is a member of the Financial Times editorial board. His column, "The Undercover Economist", which reveals the economic id
Is there more to happiness than pleasure or belief that life is going well? Should public policy aim at increasing happiness instead of prosperity or social justice? Andrew Clark is a CNRS research professor at the Paris School of Economics and a research associate at the Centre for Economic Performance, LSE. Antti Kauppinen is lecturer in the Department of Philosophy at Trinity College Dublin.
Sample PDF of lecture X
Sample PDF of lecture X
A New Conversation with Jack Welch
Jack Welch has never been one to pussyfoot around when it comes to discussions of leadership, and he doesn’t break from form during a lively give-and-take with MIT Sloan Dean David Schmittlein and an audience of Sloan students.
Schmittlein starts with a series of questions involving the reasons why some top corporations
The Future of Learning
Although she is committed to boosting interactive digital technology for learning, Diana Rhoten’s talk is framed by movies. Waiting for Superman is the starting point: a good demonstration of how schools are failing our children, but very unimaginative, Rhoten says, when it comes to solutions. In fact, one of the ass
Technology: Do Kids Need More or Less?
The ultimate questions for this Sandbox 2011 panel, posed by moderator Alan Gershenfeld, are “Where is technology not working? When is technology not the answer?” That’s a bold agenda for a panel of children’s media creators and a roomful of other producers in the industry, from Sesame Workshop, WGBH, 360 Kid, and elsewher
Plays Well With Others: Leadership in Online Collaboration
Amy Bruckman finds the accomplishments of such online collaborations as Wikipedia, Apache and Firefox “nothing less than astounding,” and is both eagerly seeking and hoping to foster the next creative group Internet sensation.
In her lab’s empirical studies, Bruckman has dissected different types of ensembl
4.1 The advantages
The powerful and majestic carnivores are the focus of many television documentaries. In this unit we will delve into the lives of these fearsome hunters and explore their physical adaptations and social behaviour. This is the fifth unit in the ‘Studying mammals’ series.