| But pushing Twitter in any direction is an impossible task, because each user winnows the data stream in a radically different way. |
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| A woman winnows salvaged grain she has collected off the ground, following a food distribution in the El Meshtel camp in Darfur. |
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| Chris Waywell winnows the wheat from the chaff in this elusive subject. |
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| Super PACs have not been able to save the candidacies of Rick Perry or Scott Walker, so the traditional process that winnows the field of unfunded candidates continues apace. |
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| What's less discussed is how this mechanism naturally winnows out the artists who lack the ability, confidence or desire to publicly solicit donations. |
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