921 | Add to Reading ListSource URL: www.pellegrino.caltech.eduLanguage: English - Date: 2011-02-15 13:15:36
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922 | Add to Reading ListSource URL: www.physics.uoguelph.caLanguage: English - Date: 2012-03-09 16:36:35
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923 | Add to Reading ListSource URL: www.ncnr.nist.govLanguage: English - Date: 2006-03-23 15:55:48
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924 | Add to Reading ListSource URL: www.colorado4h.orgLanguage: English - Date: 2005-12-21 17:43:06
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925 | Add to Reading ListSource URL: des.nh.govLanguage: English - Date: 2013-12-24 15:10:34
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926 | Add to Reading ListSource URL: www.csic.iisc.ernet.inLanguage: English - Date: 2011-03-10 13:48:21
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927 | Add to Reading ListSource URL: kidsciencechallenge.comLanguage: English - Date: 2012-08-18 04:22:33
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928 | Add to Reading ListSource URL: www.pellegrino.caltech.eduLanguage: English - Date: 2011-03-23 17:21:22
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929 | Add to Reading ListSource URL: www.materials.cmu.eduLanguage: English - Date: 2007-04-14 21:35:42
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930 | Add to Reading ListSource URL: www.cs.columbia.eduLanguage: English - Date: 2010-01-04 15:23:20
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