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Scientific American

October 1, 1980

1 min read

The Amateur Scientist, October 1980

A home made mercury-vapor ion laser that emits both green and red-orange

By Jearl Walker

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This article was originally published with the title “The Amateur Scientist” in Scientific American Magazine Vol. 243 No. 4 (October 1980), p. 204
doi:10.1038/scientificamerican1080-204

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