下一个

The chemical reaction that feeds the world - Daniel D. Dulek

3,500 观看· 11/18/13
Insider Business
Insider Business
1,390 订户
1,390
Life

View full lesson: http://ed.ted.com/lessons/the-chemical-reaction-that-feeds-the-world-daniel-d-dulek How do we grow crops quickly enough to feed the Earth s billions? It s called the Haber process, which turns the nitrogen in the air into ammonia, easily converted in soil to the nitrate plants need to survive. Though it has increased food supply worldwide, the Haber process has also taken an unforeseen toll on the environment. Daniel D. Dulek delves into the chemistry and consequences. Lesson by Daniel D. Dulek, animation by Uphill Downhill.

显示更多

 0 评论 sort   排序方式


下一个