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Archaeological Radio chemistry what is this any way.—The preceding unsigned comment was added by 205.155.15.250 (talk • contribs) .
Is there a field that uses decay to achieve configurations that wouldn't be possible using the decay product, or to create something that changes over time? (For instance, creating a synthetic ruby using 51Cr, which would (possibly, not sure if the concentrations of Cr and V are similar) change to a purple sapphire over a few months) Abramul 18:25, 30 March 2007 (UTC)