Pattison’s Electrical Law.

If the wires can be connected in two different ways, the first one will burn the fuse.

Law of Farrell about newfangled twists and wands.

The most expensive component breaks down first.

Anxiety with equations.

1. When solving any real problem in the corresponding system of “x” equations, there are always “x + 1” unknowns.

2. The element of information that is most needed will be the least available.

3. As soon as you exhausted all opportunities and surrendered, as soon as a solution is found – simple and obvious, which immediately comes into the mind of any outsider.

4. The trouble never comes alone.

Finman’s mathematical law.

No one wants to read someone else’s formula.

Observations of von Neumann.

In mathematics, you do not start to understand different things over time. You just get used to them.

The law of productivity.

When the bosses talk about improving productivity, it never has in mind itself.

The Law of Rap.

If something is repeatedly disassembled and then collected again, in the long run it will be in duplicate.

Act Anthony.

Any fallen tool rolls into the most inaccessible corner of the workshop.


On the way to this corner, a fallen tool will certainly hit your leg first.

Ray’s rule for accuracy.

1. Measure with a micrometer.

2. Mark with chalk.

3. Cut off with an ax.

The rule of a sensible potboiler.

Save all the details.

Johnson’s Law.

Any cunning mechanical device fails at the most inopportune moment.

An annoying law.

If in the process of doing some work to remove a tool that you probably should not need anymore, an immediate need arises immediately.

Setdinger’s Law.

Any device works better if you plug it into the network.

Fadd’s Law on Action and Counteraction.

Push something hard enough – and it will certainly fall.

Anthony’s law on strength.

Do not use force – better take the hammer more.

Kahn axiom.

When nothing works, read the instructions.

Hecht’s law.

To postpone what you do not want to do, there is no better time than right now.

The Second Law of Parkinson.

Expenditures grow to match incomes.

The principle of full employment.

Workplaces create confusion and mess.

Byrne Law on Concreting.

When you pour concrete, there’s sure to be a downpour.

The second law for any work.

If you need to fasten four bolts, you can always find only three suitable nuts.

Cole’s comment.

Each new project requires a tool that you do not have.

Rules for any machinery and mechanisms.

1. After some device is dismantled, and then collected, nothing will work.

2. The last turn of any bolt or nut will tear the threads on them or cause them to burst.


Without this last turn, this bolt or nut will collapse.

Law of product testing.

An element selected at random from a group that is characterized by a reliability of 99 percent will belong to a one-percent group.

Maxim Campbell.

Hell is a place where everything is perfectly tested and nothing works.

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