I thought of cross-linking here this question that I had asked on physicsstackexchange.

It would be a great help if someone can answer that.

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    $\begingroup$ The question has been deleted. Can you reproduce the text? $\endgroup$ – S. Carnahan Jul 27 '13 at 22:11
  • $\begingroup$ @S.Carnahan: The OP has voluntarily deleted it, which is weird... I have flagged this as unclear what you're asking. $\endgroup$ – Abhimanyu Pallavi Sudhir Nov 6 '13 at 16:49
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    $\begingroup$ In general, it is probably a bad idea to simply provide a link without any kind of reference or information describing what is there. $\endgroup$ – Ricardo Andrade Nov 6 '13 at 17:34