11Instructables74,801Views19CommentsJoined June 9th, 2011

Math/Science Educator and writer with more than 30 years of experience in science and industry.

ndpmcintosh's instructables

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10K+ Views Earned a bronze medal

1+ Featured Instructable Earned a bronze medal

Contest Winner First Prize in the Launch It! Contest

Contest Winner Fourth Prize in the Scientific Method Contest

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