Open Classroom: Demography is Destiny 02-16-11 #2
Open Classroom Series 02-16-11 Demography is Destiny Demographic Change and our Public Schools John Logan
JFK50 A Friend to Latin America — Ricardo Hausmann
Harvard Kennedy School Professor Ricardo Hausmann talks about JFK's visit to Venezuela and his relationship to Latin America.
Technology breakthrough fuels laptops and phones, recharges scientist's 60-year career
This week, SiGNa Chemistry Inc. unveiled its new hydrogen cartridges, which provide energy to fuel cells designed to recharge cell phones, laptops and GPS units. The green power source is geared toward outdoor enthusiasts as well as residents of the Third World, where electricity in homes is considered a luxury.
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What Is the Function of Flowers on Plants?
The function of flowers on plants is to act as the sexual organs and regenerate for another generation. Learn how flower buds spawn seeds and continue the life cycle of the plant in this video. (01:35)
Where Does Photosynthesis Occur?
Photosynthesis occurs in all green plants, as carbon oxide and water are converted into sugars and oxygen through the chemical catalyst called chlorophyll. (02:14)
The Last Moments of the Columbia Astronauts
This ten minute video is the only video recovered after Columbia disintegrated during re-entry. It depicts the crew during their final preparations, before landing. The tape ends four minutes before the first failure. The rest of the video was destroyed. The use of this video may be limited in use for most classrooms due to its quality and subject matter. However, it does portray what happens on this flight and the risks that humans face when seeking new frontiers.
Bonaparte - Prelude to Waterloo
This 6:27 minute long video explains how, on the 26th of February, 1815, Napoleon slipped past his enemies after being forced to abdicate, and force to live in isolation on the island of Elba. Within ten months he returned to Paris, welcomed by many. This video will replay automatically.
A semaphorin code defines subpopulations of spinal motor neurons during mouse development.
In the spinal cord, motor neurons (MNs) with similar muscle targets and sensory inputs are grouped together into motor pools. To date, relatively little is known about the molecular mechanisms that control the establishment of pool-specific circuitry. Semaphorins, a large family of secreted and cell surface proteins, are important mediators of developmental processes such as axon guidance and cell migration. Here, we used mRNA in situ hybridization to study the expression patterns of semaphorins
Altruism: How to Calculate When to Be a Hero? - Animal Behavior
This course covers the principles of biology as they relate to animal behavior, with broad coverage of animal groups. Special attention will be paid to the emerging discipline of behavioral ecology.
A scorpion typical of the Mojave desert
Scorpions are common in the desert and hunt other arthropods at night. They use their stinging tail to stun prey and also to protect themselves from predators. Scorpions glow under bright light in the dark.
A rotting log
The lichen is digesting the log and will eventually turn the log into nutrient-rich soil.
Cool It: global warming and getting our priorities straight
Current policy proposals on global warming tend to focus on early and strong greenhouse gas cuts, although these will be very expensive and help very little. Lomborg suggests that we should focus on long-term, smart strategies. Bjørn Lomborg is director of the Copenhagen Consensus Centre at Copenhagen Business School. Lomborg was named as one of the 100 most influential people in the world by Time magazine in 2004. He is the author of the bestselling The Skeptical Environmentalist (CUP, 2001) w
UNICEF After Tsunami, Education & Recreation Solomon Islands
WESTERN PROVINCE, Solomon Islands, 10 July 2007 -- Young children living in the western part of the Solomon Islands have faced tough living conditions and a ...
The Future of Capitalism and Globalisation: Global Perspectives and a European Agenda
The subprime crisis and the global recession are receding. But what will be their long-term consequences? What future awaits globalization, international relations, and the market economy? What are the global trends of crisis policies and what do they mean for the post-crisis world? These fundamental questions will be addressed at an evening debate that will offer both the big global picture and the view from the new EU Commissioner for Trade.
Cities Under Siege
Cities have become the new battleground of our increasingly urban world. From the slums of the global South to the wealthy financial centres of the West, Cities Under Siege traces how political violence now operates through the sites, spaces, infrastructures and symbols of the world's rapidly expanding metropolitan areas. Drawing on a wealth of original research, Graham shows how Western and Israeli militaries and security forces now perceive all urban terrain as a real or imagined conflict zone
Can We Still Afford Europe?
With its member states cutting spending sharply, what are the prospects for the EU's budget to 2020? Will Europe be able to meet pressing global challenges? Janusz Lewandowski is European commissioner for financial programming and budget, a position he has held since February 2010. He served as Polish Minister for Privatisation in 1991, and from 1992-93. He received both his Phd (economics) and Masters degree (economics) from the University of Gdansk.
Living in the End Times
There should no longer be any doubt: global capitalism is fast approaching its terminal crisis. In his latest book, Living in the End Times, Slavoj Žižek has identified the four horsemen of this coming apocalypse: the worldwide ecological crisis; imbalances within the economic system; the biogenetic revolution; and exploding social divisions and ruptures. But, he asks, if the end of capitalism seems to many like the end of the world, how is it possible for Western society to face up to the end
Tensions at financial reform hearing
Federal Reserve Chairman Ben Bernanke and America's other top financial regulators went to Capitol Hill to answer lawmakers' questions about landmark Wall Street reform put in place after the financial crisis.