Obama Addresses 2004 Democratic Convention
On July 27, 2004, Barack Obama, then a little-known Democratic nominee for the U.S. Senate from Illinois, delivers the keynote address at the Democratic National Convention. His speech, in which he describes his personal story of the American Dream, catapults him into the national spotlight. (2:51)
Navajo Rug (Interactive)
Explore the blending of math and art in the geometry of Navajo rugs. Identify squares and triangles in Navajo designs and combine shapes to create your own patterns.
George Washington's Precedents
This video provides insights into the many precedents that Washington set as the first president. It would be a good overview, but does not provide any insights into why he took and said some of these actions in enough detail to stand by itself.(3:05)
Anatomy of the State
Murray Rothbard was known as the state's greatest living enemy, and this is his most succinct and powerful statement on the topic, an exhibit A in how he came to wear that designation proudly. He explains what a state is and what it is not, according to his own ideological vision. His shows how it is one institution that purports to hold the right to violate all that we otherwise hold as honest and moral, and how it operates under a false cover now and always. He shows how the state wrecks f
Greeting and introducing yourself
Greeting and introducing yourself.
Responsible Conduct of Research Seminar Series: Safe Laboratory Practices
http://res.berkeley.edu/res/rcr.cfm
Food Chains and Webs
Author(s):
ISS Update - June 21, 2012
The International Space Station video update for June 21, 2012.
NASA - Aurorae from Space on Vimeo
Lately, the International Space Station has been flying through geomagnetic storms, giving astronauts an close-up view of the aurora borealis just outside their windows. These videos were taken by the crew of Expedition 30 on board the International Space Station. First, get an introduction into the beauty of aurorae.
1st Segment:
The sequence of shots was taken March 3, 2012 from 17:59:48 to 18:16:25 GMT, on a pass from eastern Kenya, near the Indian Ocean, to the South Ind
Do You Have the Strength?
In this activity, students squeeze a tennis ball to demonstrate the strength of the human heart. Working in teams, they think of ways to keep the heart beating if the natural mechanism were to fail. The goal of this activity is to get students to understand the strength and resilience of the heart.
The Beat Goes On (Activity)
In this activity, students learn about their heart rate and different ways it can be measured. Students construct a simple measurement device using clay and a toothpick, and then use this device to measure their heart rate under different circumstances (i.e., sitting, standing and jumping). Students make predictions and record data on a worksheet.
Dr. Ivor van Heerden - The inside story from one Louisiana scientist
Dr. Ivor van Heerden presented "The inside story from one Louisiana scientist" at the 2012 Public Affairs Conference: Culture of Connectivity.
As former deputy director of Louisiana State University's Hurricane Center, Dr. Ivor van Heerden was one of several experts to presciently predict the disastrous consequences — including catastrophic levee failure — upon South Louisiana.
Author of the tell-all, "The Storm: What Went Wrong In Katrina and Why — The Inside Story From One Louisiana S
Science Bulletins: Releasing a River
The network of rivers in the Sacramento--San Joaquin River Delta has a long history of human modification to fulfill residential and agricultural water needs. The Cosumnes River, which flows into the delta, is relatively unimpeded save for earthen levees erected along its banks to prevent natural flooding events from ruining nearby agricultural fields.
Scientists from University of California--Davis recently analyzed the sediment trail of a flood that broke a Cosumnes levee using airborne light
17.433 International Relations of East Asia (MIT)
The aim of this course is to introduce and analyze the international relations of East Asia. With four great powers, three nuclear weapons states, and two of the world's largest economies, East Asia is one of the most dynamic and consequential regions in world politics. This course will examine the sources of conflict and cooperation in both periods, assessing competing explanations for key events in East Asia's international relations. Readings will be drawn from international relations theory,
Skin Biopsy Device
Johns Hopkins Whiting School of Engineering Design Day project presentation.
Keynote | Windows Phone Summit Watch the on-demand video of our June 20 press event in San Francisco outlining the past and future of Windows Phone.

Sum of Eleven Solitaire
Here is a card game with variations that kids can play alone or with a partner. Students take out face cards and joker cards. A dealer lays out 9 cards and students begin to match sums of eleven with 2 cards. Students must say aloud the equation. This would be a great center game to reinforce mastery of this important skill. (3:32)
Charles Garnier, The Paris Opéra, 1860-75 - Smart History at Khan Academy
Charles Garnier, The Paris Opéra, 1860-75. The experts are Dr. Beth Harris and Dr. Steven Zucker. (04:49)
Amusement Park Physics: Interactive Game
This is a complex series of choice a student makes in design rides. The site provides feedback on the student's choice. It could be used as a group activity or individual, but the directions must be read first. Free registration may be required.
Science Bulletins: Beetle Outbreaks and Climate Change
Scientists in western Canada have long been tracking the extent of the mountain pine beetle. This native insect kills weak and old lodgepole pine trees, thus promoting healthy growth of young forests. In times of drought, beetle populations can spike, spreading to healthy pine trees. Historically, cold winters kept beetle populations under control. A new study published in the journal Nature highlights how climate change is promoting pine beetle outbreaks—and how the outbreaks are contributing













