This website offers thousands of authentic NBC News videos, historic newsreels, primary source documents, photographs and more, useful for instructors, researchers and students. The content is categorized in to 40 subject areas including biology, chemistry, education, current events, finance, earth science, physics, ethics, math & statistics etc. Very engaging content and easy navigation. The...
This video shows how Agent Orange (nearly 20 million gallons of defoliant) left negative effects in a central highland of Vietnam. The most toxic component: dioxin, has been accumulated in the food chain of this area because dioxin is fat soluble. The botanist Phung Tuu Boi tried to build up "green fence" to protect people and their life-stocks entering the hot zones of dioxin, but failed because...
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