The tun is an old
English unit of
wine cask volume, holding about
954 litres, almost a
cubic metre. Etymologically it is identical to the
ton, a unit of mass or weight. Originally, it was a genuine unit of volume and measured 256
gallons (28), which is the base for the name of the
quarter of 64 corn gallons. Its later division into 210 imperial or 252 wine gallons was chosen to be evenly divisible by small integers, including seven:210 = 2 · 3 · 5 · 7252 = 2² · 3² · 7
Queen Anne’s wine gallon is 231
cubic inches (3 × 7 × 11 in³), which makes the tun based on it exactly 2² · 3³ · 7² · 11 = 58,212 in³, which is a cylinder with diameter and height of 42 in both.
See more at Wikipedia.org...
Free Download Now!
