9 Apr
2005
9 Apr
'05
3:54 p.m.
----- Original Message -----
From: "Philip Pemberton" <philpem at dsl.pipex.com>
To: <cctalk at classiccmp.org>
Sent: Friday, April 01, 2005 10:37 AM
Subject: Re: D.G. Nova update -- crapacitors strike again
Probably worth keeping Murphy's Laws in mind -
"if something can go wrong,
it
will" and "if a component fails, it will
take the most expensive or
hardest
to replace part with it".
Later.
--
Phil.
I seem to recall the following specific examples of Murphy's (sod's ) law :-
1. The more innocuous a design change appears , the further it's influence
will extend.
2. In any given computation , the figure that is most obviously correct will
be the source of error.
3. Any wire cut to length will be too short.
4. A device selected at random from a group having 99% reliability will
belong to the 1% group.
5. The probability of a dimension being omitted from a plan or drawing is
directly proportional to it's importance.
6. Interchangeable parts won't.
7. A circuit protected by a fast acting fuse will protect the fuse by
blowing first.
8. A failure will not appear until a unit has passed final inspection.
9. After the last of 16 mounting screws has been removed from an access
cover , it will be found the wrong access cover has been removed.
10. After an access cover has been secured by 16 screws , it will be found
that the gasket has been left off.
and my favourite :
11. Suggestions made by the value analysis group will increase costs and
reduce functionality.
Geoff.