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Scientific American

December 1, 1985

1 min read

Computer Recreations, December 1985

The search for an invisible ruler that will help radio astronomers to measure the earth

By A. K. Dewdney

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This article was originally published with the title “Computer Recreations” in Scientific American Magazine Vol. 253 No. 6 (December 1985), p. 16
doi:10.1038/scientificamerican1285-16

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