11 Oct
2018
11 Oct
'18
1:53 p.m.
Just to throw some unconnected trivia into the debate I learnt a few days ago that 'Rule of thumb' refers to a miller checking the setting of the grindstones by rubbing the ground grain between thumb and forefinger. Thought you might like to know that 😊
John Weller 01380 723235 07976 393631 “Rule of thumb” is not the same as “arbitrary”.
The former is based upon experience and observation. The latter is pulled out of thin air.