On 16/09/2018 09:16, ARW wrote:

Take the top left picture of this

https://www.goffsuk.com/history

Do you think you could measure the height of that ceiling with a 5m tape
measure and how long do you think it would take you? mm perfect
measurement is not required.


If +/- 0.5m is good enough I'd reckon on 2 mins (to allow for 2 attempts
as a cross-check). I might need to do it a third time if they don't
match. [From the photo I'd expect about 70 hands ]

--
Robin
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