I don't think René Descartes would have involved himself with anything so practical. He was a mathematician and philosopher, not a hydrological engineer! Should we leave the first definition to clarify a common misconception, or delete it as an error which no-one would make? Does anyone know the exact Quantum Mechanics definition of a Cartesian well, or the derived usage (long after Descartes)in a philosophical context? Dbfirs 23:07, 27 March 2007 (UTC)
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Quantum mechanics sense. Not in any of my physics sources. SemperBlotto 07:37, 28 March 2007 (UTC)