The deadly irony of gunpowder - Eric Rosado

توضیحات:

View full lesson: http://ed.ted.com/lessons/the-deadly-irony-of-gunpowder-eric-rosado In the mid-ninth century, Chinese chemists, hard at work on an immortal...

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eric, rosado, chemistry, zedem, media, gunpowder, ted, ted-ed, tededucation, ted, ed, history, china, fireworks, bomb, gunpowder, day

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