On 3/7/2018 7:21 AM, Stephen wrote:
> Now, I would be surprised if people in the UK did not know that. I guess 
> I was about 15 or 16 when I was taught it at school.
> But as a rule of thumb that an inch is about the length of your thumb's 
> distal phalanx. Is good enough for children as they more resemble the 
> size of an adult of bygone years.
> 
> BTW has anyone heard or seen a ruler where feet are divided into tenths?
> Giving the impression that there are 10 "X inches" to a foot.
> I saw one once about 30 years ago.
> 
> 

I have a triangular drafting ruler that is like that.


Mike

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