/bin/sh question

[Paul Goyette <paul%whooppee.com@localhost>]

Just out of curiousity, is there a reason why the following does not 
work?  It generates "Symbol =" as output...

        #! /bin/sh

        echo "value" |
          read symbol
        echo "Symbol = $symbol"

Yet it does work if you do it as follows, generating the expected output 
"Symbol = value"

        #! /bin/sh
        echo "value" |
        ( read symbol
          echo "Symbol = $symbol" )



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