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View full lesson: http://ed.ted.com/lessons/how-do-hard-drives-work-kanawat-senanan
The modern hard drive is an object that can likely hold more information than your local library. But how does it store so much information in such a small space? Kanawat Senanan details the generations of engineers, material scientists, and quantum physicists who influenced the creation of this incredibly powerful and precise tool.
Lesson by Kanawat Senanan, animation by TED-Ed.