So now we know the book that you read to get your information.

Was it the "idiots and amateurs" part or the "nautical" part that attracted
your attention?


"JAXAshby" wrote in message
...
Gate:

6. A device for controlling the passage of water or gas through a dam or
conduit.

Lock:

2. A section of a waterway, such as a canal, closed off with gates, in
which
vessels in transit are raised or lowered by raising or lowering the water
level
of that section.