On 01/10/2012 09:38, Bill Wright wrote:
John Rumm wrote:



It is quite possible to know how to undo a nut and yet not be able to
do it!

It is quite possible to know in principle how to undo a nut and yet not
be able to undo a particular one. Maybe that's where the extra knowledge
gained from experience might help.

Or a larger hammer / longer spanner ;-)


--
Cheers,

John.

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