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- Newsgroups: alt.quotations
- Path: sparky!uunet!uunet.ca!wildcan!sq!msb
- From: msb@sq.sq.com (Mark Brader)
- Subject: Re: Murphy's Laws and other laws
- Message-ID: <1992Dec30.112608.13316@sq.sq.com>
- Organization: SoftQuad Inc., Toronto, Canada
- References: <kencham.725224236@centi> <1hqr38INNepl@agate.berkeley.edu>
- Date: Wed, 30 Dec 92 11:26:08 GMT
- Lines: 39
-
- Perhaps it's time someone mentioned the *real* Murphy's Law.
- From the Jargon File, release 2.9.10:
-
- :Murphy's Law: prov. The correct, *original* Murphy's Law
- reads: "If there are two or more ways to do something, and one of
- those ways can result in a catastrophe, then someone will do it."
- This is a principle of defensive design, cited here because it is
- usually given in mutant forms less descriptive of the challenges of
- design for lusers. For example, you don't make a two-pin plug
- symmetrical and then label it `THIS WAY UP'; if it matters which
- way it is plugged in, then you make the design asymmetrical (see
- also the anecdote under {magic smoke}).
-
- Edward A. Murphy, Jr. was one of the engineers on the rocket-sled
- experiments that were done by the U.S. Air Force in 1949 to test
- human acceleration tolerances (USAF project MX981). One experiment
- involved a set of 16 accelerometers mounted to different parts of
- the subject's body. There were two ways each sensor could be glued
- to its mount, and somebody methodically installed all 16 the wrong
- way around. Murphy then made the original form of his
- pronouncement, which the test subject (Major John Paul Stapp)
- quoted at a news conference a few days later.
-
- Within months `Murphy's Law' had spread to various technical
- cultures connected to aerospace engineering. Before too many years
- had gone by variants had passed into the popular imagination,
- changing as they went. Most of these are variants on "Anything
- that can go wrong, will"; this is sometimes referred to as
- {Finagle's Law}. The memetic drift apparent in these mutants
- clearly demonstrates Murphy's Law acting on itself!
-
- (In other words, if there is a wrong way to quote Murphy's Law, then
- someone will quote it that way.)
- --
- Mark Brader "... There are three kinds of death in this world.
- SoftQuad Inc., Toronto There's heart death, there's brain death, and
- utzoo!sq!msb, msb@sq.com there's being off the network." -- Guy Almes
-
- This article is in the public domain, including the Jargon File excerpt.
-