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Re^2: How many colors does a rainbow have?by ambrus (Abbot) |
on May 10, 2017 at 14:30 UTC ( #1189996=note: print w/replies, xml ) | Need Help?? |
The Dinosaur Whiteboard strip 569 gives a counterexample. Chemists Ferdinand Reich and Hieronymous Richter named indium after its indigo spectral lines.
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