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Rule of Thumb - Macro Monday - Rule

A rule of thumb is a principle with broad application that is not intended to be strictly accurate or reliable for every situation. It is an easily learned and easily applied procedure for approximately calculating or recalling some value, or for making some determination

 

The term is thought to originate with carpenters who used the length of the tip of their thumbs (i.e., inches) rather than rulers for measuring things, cementing its modern use as an imprecise yet reliable and convenient standard. Another possible origin of the phrase comes from measurement, in particular in agricultural fields. The plants need a fairly precise depth to seed properly, whether planted from seed or being replanted, but the depth can sometimes be estimated using the thumb. That is, a "rule (measurement) of thumb". Macro Monday "Rule"

 

HMM everyone

 

116 pictures in 2016 85 Measuring instrument, both the tape and my thumb.

 

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Uploaded on January 25, 2016
Taken on January 24, 2016