In those early months, much of the early direction for the Kindle was set. Zehr and Parekh made the decision to explore the low-powered black-and-white display technology called E Ink that, years before, Martin Eberhard had found too primitive and expensive. It used millions of tiny microcapsules, each about the diameter of a human hair and containing positively charged white particles and negatively charged black particles suspended in a clear fluid. When a positive electric field is applied, positively charged particles move to the top of the microcapsule, making that spot appear white; when
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