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Women's Track & Field world records, as recognized by the International Association of Athletics Federations (IAAF).

Connect your classroom to the world Skype is a free and easy way for teachers to open up their classroom. Meet new people, talk to experts, share ideas and create amazing learning experiences with teachers from around the world.

An army of 1,001 volunteers set a new Guinness world record when they successfully created the largest ever human mattress domino rally. 

"http://yt.cl.nr/VSwfqaVeCWs" 850 people in New Orleans were knocked back onto mattresses in human dominoes to break the world record for the number of people taking part.

Science is part of the world all around us. On this page, you will find resources to help students connect science content to things they can see and experience. Videos, Interactive Explorations, and Interactive Videos engage students and encourage them to explore more on their own with your help.

The Cambridge IGCSE Physical Science syllabus helps learners to understand the technological world in which they live, and take an informed interest in science and scientific developments. They learn about the basic principles of Physical Science through a mix of theoretical and practical studies. Learners also develop an understanding of the scientific skills essential for further study at Cambridge International AS and A Level, skills which are useful in everyday life. As they progress, learners gain an understanding of how science is studied and practised, and become aware that the results of scientific research can have both good and bad effects on individuals, communities and the environment.

a series of short videos telling the creation stories of different cultures around the world

The Nitrous Oxide Research Program is providing world class data  on N2O emissions from different soils under different management  practices, farming systems and climates. It is identifying N2O emission reduction strategies that may benefit farmers.

Vast collection of podcasts, videos and explanations for real-world fun science. Excellent for discussion, predictions etc

"http://yt.cl.nr/8V2ncwumv9o" Col. Joseph Kittinger -1960 - set world records for highest parachuting jump (102,800 ft. or 20 miles, 31km), highest balloon jump and fastest speed (close to speed of sound) by a person through the atmosphere.

"http://yt.cl.nr/OZY8279b7BU" At 15,000 metres Prof Brian Cox experiences what a world without gravity would be like.

" Dim Lights Share a clea.nr URL: Hide Comments, Favorites, Suggested Videos, etc. There is a common perception that weight and mass are basically the same thing. This video aims to tease out the difference between mass and weight by asking people what makes a car difficult to push. The standard answer is that it is difficult to push because it's heavy. But heaviness is a measure of weight, the gravitational pull of the Earth attracting the car to Earth's center. When the car is pushed on a flat road, the force of gravity does not oppose the motion. Instead the resistance felt is an indication of the car's mass which determines its inertia. Inertia is the property of matter that means it tends to resist acceleration - the greater the mass, the less the acceleration for a given amount of force. Subscribe 109 videos 32,519 Like Add to Share Uploaded by 1veritasium on Feb 7, 2011 There is a common perception that weight and mass are basically the same thing. This video aims to tease out the difference between mass and weight by asking people what makes a car difficult to push. The standard answer is that it is difficult to push because it's heavy. But heaviness is a measure of weight, the gravitational pull of the Earth attracting the car to Earth's center. When the car is pushed on a flat road, the force of gravity does not oppose the motion. Instead the resistance felt is an indication of the car's mass which determines its inertia. Inertia is the property of matter that means it tends to resist acceleration - the greater the mass, the less the acceleration for a given amount of force. 320 likes, 14 dislikes Show more Uploader Comments ( 1veritasium ) Actually, it is the friction which is causing difficulty in moving the car. Ideally if there is no friction, whether rolling or sliding, even the slightest of the force would make the car move. You could actually be able to move the car with a push of your little finger if there is no friction at

Impossible objects, like those drawn by artist M. C. Escher, don't seem like they could exist in the real world. But Kokichi Sugihara from Meiji University in Kawasaki, Japan, is well known for building 3D versions of these structures.

The Next Generation of Digital Books Our Choice will change the way we read books. And quite possibly change the world. In this interactive app, Al Gore surveys the causes of global warming and presents groundbreaking insights and solutions already under study and underway that can help stop the unfolding disaster of global warming. Our Choice melds the vice president's narrative with photography, interactive graphics, animations, and more than an hour of engrossing documentary footage. A new, groundbreaking multi-touch interface allows you to experience that content seamlessly. Pick up and explore anything you see in the book; zoom out to the visual table of contents and quickly browse though the chapters; reach in and explore data-rich interactive graphics.

Experience WorldWide Telescope Immerse yourself in a seamless beautiful environment. From web to desktop to full dome planetarium, WorldWide Telescope (WWT) enables you to explore the universe, bringing together imagery from the best ground and space-based telescopes in the world and combining it with 3D navigation. Experience narrated guided tours from astronomers and educators featuring interesting places in the sky. You can research and import your own data and visualize it, then create a tour to share with others. A web-based version of WorldWide Telescope is also available. This version enables seamless, guided explorations of the universe from within a web browser on PC and Intel Mac OS X by using the power of Microsoft Silverlight 4.0.

"It's the dream of kids all around the world to see giant beasts walk the Earth again. Could -- and should -- that dream be realized? Hendrik Poinar gives an informative talk on the next -- really -- big thing: The quest to engineer a creature that looks very much like our furry friend, the woolly mammoth. The first step, to sequence the woolly genome, is nearly complete. And it's huge. (Filmed at TEDxDeExtinction.)"