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Aug 11 2008, 12:52 AM EDT
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Change: with experiments andto gaininggain insights, generatinggenerate alternatives, representingrepresent ideas, checkingand check content. Part of that process is to frequently question and refine our Problem Statement. This page shows that evolution.04 Aug 2008: How do we design and validate
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Aug 10 2008, 11:54 PM EDT
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Change: elaborate on might give us insights and shorten the design path towards development of such devices). This was the process of brainstorming ... which helped us refine our problem statement Home Previous Next Contact Us
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Aug 4 2008, 5:02 PM EDT
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Change: and validate a $20, 10kg/hr millet thresher suitable for local manufacture and sale in Africa and India? 26 July 2008: 100 word "sales pitch": Like 1 million African farmers, Fatima spent 4 hours daily pounding millet in
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Aug 4 2008, 5:01 PM EDT
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Change: There were only format changes (bold, italics, etc.) in this version. See this version for details.
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Aug 4 2008, 5:00 PM EDT
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Change: Design is not a linear process. As we iterate with experiments and gaining insights, generating alternatives, representing ideas, checking content. Part of that process is to frequently question and refine our Problem Statement. This page shows that evolution.04 Aug 2008: How do we design a
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Aug 4 2008, 3:56 PM EDT
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Change: MahangarinaMahangurina thresher, her chronic back pain and calluses on her hands have disappeared. Her family can chew porridge without breaking their teeth on stones. With 2 more hours per day and more energy, she planted additional millet to sell so her daughter can attend college. The Mahangarina
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Aug 4 2008, 3:12 PM EDT
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Change: How do we design a $20, 10kg/hr millet thresher suitable for local manufacture and sale in Africa and India? 26 July 2008: 100 word "sales pitch": Like 1 million African farmers, Fatima spent 4 hours daily pounding millet
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Aug 4 2008, 3:11 PM EDT
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Change: Like 1 million African farmers, Fatima spent 4 hours daily pounding millet in a hole with a heavy stick to feed her family. Since buying
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Aug 3 2008, 2:17 PM EDT
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Change: simplicity include:manual power source, ideally without complex transmissions or linkages.Scalability to high throughput or other grains is less important (although the principles we discover and elaborate on might give us insights and shorten the design path towards development of such devices). Home Previous Next Contact Us
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Aug 1 2008, 8:12 AM EDT
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Change: There were only format changes (bold, italics, etc.) in this version. See this version for details.
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Jul 30 2008, 8:48 AM EDT
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Change: 23 July 2008: we have iterated on the problem statement and solution concept, exploring and comparing two alternatives: a ~$20/1kg thresher sold to small farmers
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Jul 23 2008, 3:52 PM EDT
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Change: There were only format changes (bold, italics, etc.) in this version. See this version for details.
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Jul 23 2008, 3:46 PM EDT
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Change: July 2008: we have iterated on the problem statement and solution concept, exploring and comparing two alternatives: a ~$20/1kg thresher sold to small farmers or
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Jul 21 2008, 9:14 AM EDT
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Change: Likely trade-offs to achieve minimal cost and simplicity include:manual power source, ideally without complex transmissions or linkages.Scalability to high throughput or other grains is less important (although the principles we discover and elaborate on might give us insights and shorten the design path towards development of such devices).
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Jul 21 2008, 8:56 AM EDT
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Change: Design and validate a radically simple, reliable, and inexpensive millet threshing (and ideally winnowing) machine, appropriate for small (<~ 1 acre) farmers. Target customersare primarily women who currently thresh and winnow small quantities of millet for their daily use or to sell a small surplus. Their capital
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Jul 19 2008, 12:40 AM EDT
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Change: Created by Jul 19 2008, 12:40 AM EDT for: no reason given
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