040-100304 In the Treasure Corner - The Halo Effect

Nobody knows quite what it is, but most every treasure hunter has experienced it at one time or another. I'm talking about what is called, for want of a better term, the Halo Effect. In a nutshell:  You get a good beep, you dig, but nothing is there.  You swing your loop over the hole, and the beep is gone.  But if you dig a bit deeper, you find a coin. What happened?   This program discusses the controversial "Halo Effect".  For a more detailed discussion of the science behind this phenomenon, read this discussion thread: http://tinyurl.com/ykdwn95

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