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21st Century Science & Technology (ISSN 0895-6820) is an occasional publication by 21st Century Science Associates, 60 Sycolin Road, Suite 203, Leesburg, Va. 20175. Tel. (703) 777-6943. Address all correspondence to 21st Century, P.O. Box 16285, Washington, D.C. 20041. 21st Century is dedicated to the promotion of unending scientific progress, all directed to serve the proper common aims of mankind. Opinions expressed in articles are not necessarily those of 21st Century Science Associates or the scientific advisory board. We are not responsible for unsolicited manuscripts. www.21stcenturysciencetech.com © 2017 21st Century Science Associates |
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