Fun page: Murphy's Laws
You may have heard of Murphy's Law as "Anything that can go wrong, will." There is much more to it than that. Here's just a sample:
The Contributions of Edsel Murphy to the
Understanding of the Behaviour of Inanimate Objects
by D.L. Klipstein in EEE Magazine, in the 1960s
Calculations
- In any given miscalculation, the fault will never be placed if more than one person is involved.
- Any error that can creep in will. It will be in the direction that will do the most damage to the calculation.
- A decimal will always be misplaced.
- In a calculation with multiple plus-minus errors, the total error will be the sum of all errors adding in the same direction.
Specifications
- Specified environmental conditions will always be exceeded.
- Any safety factor set as a result of practical experience will be exceeded.
- Murphy's Law supersedes Ohm's.
Production
- Any component cut to length will be too short.
- The availability of a component is inversely proportional to the need for that component.
- If a project requires n components, there will be n-1 in stock.
- Interchangeable parts won't.
- Components that must not and cannot be assembled improperly will be.
- A component protected by a fast-acting fuse will protect the fuse by blowing first.
- After the last of 16 mounting screws has been removed from an access cover, it will be discovered that the wrong access cover has been removed.
- After an access cover has been secured by 16 hold-down screws, it will be discovered that the gasket has been omitted.
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