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A comment on Iron Ring. Parent comment

Re:Iron Ring by saulrh on Tuesday May 07, 2013 @12:58PM (#5669194)
Diamond made out of isotopically pure carbon-14. Ring laser gyroscope. Negative-refractive-index metamaterial. A single giant LED. Nanolithography to produce structural coloration.

I've wanted a cool physics ring for quite a while.

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Re:Iron Ring by claudius on Tuesday May 07, 2013 @01:17PM (#5669340)
It also should be able to reverse the polarity of the neutron flow. Clearly, that is a key requirement.
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