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Science News Archive - March, 2011

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34
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66
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53
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26
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12
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9
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44
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24
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73
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29
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44
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43
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48
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52
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Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.