on 16/1/04 12:37 AM, Jason Lucas at [log in to unmask] wrote:
> "Scales were not used in the original weigh locks. As boat entered the
> weigh lock, the level of water in the lock rose, and by displacement the
> boat's total weight was determined. Then the weight of the empty boat,
> which had been previously established, was subtracted to determine the
> weight of just the cargo"
Having travelled extensively on canals, I fail to see how a boat entering a
lock makes the water rise... Displaces it, yes - but the displacement
cannot, surely, make the level rise... How did they stop the water simply
moving out as the boat came in, as happens every other time a boat moves...
Maybe it is just too early in the morning.
Or maybe I have just used too many locks...