Phil Cook v2 wrote:
> To ask it another way how much energy is the bookshelf using to keep the 
> lump of metal from falling through it under the influence of gravity ;-)

That's really not the right way to ask the question. The right way to ask 
the question is how much more work can the lump of metal do after sitting on 
the bookshelf (or in your hand) for 30 seconds?  It hasn't anything to do 
with how much effort it takes to hold it. It has to do with the final 
resulting configuration.

-- 
Darren New, San Diego CA, USA (PST)
    C# - a language whose greatest drawback
    is that its best implementation comes
    from a company that doesn't hate Microsoft.

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