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2. Fender (boating) - Wikipedia

   en.wikipedia.org/wiki/Fender_(boating)

   In boating, a fender is an air-filled ball or a device in other shape and material used to absorb the kinetic energy of a boat or vessel berthing against a jetty, quay wall or other vessel. [1] Fenders, used on all types of vessels, from cargo ships to cruise ships, ferries and personal yachts, prevent

3. Caisson (lock gate) - Wikipedia

   en.wikipedia.org/wiki/Caisson_(lock_gate)

   Most locks are closed by chevron or mitre gates rather than by caissons. These are pairs of hinged gates that form a "V" shape, with the deeper water outside the V. Water pressure thus holds them closed. These gates can be opened and closed quickly, so they are used for canal locks, to change levels, and also for most freight docks.

4. Lock (water navigation) - Wikipedia

   en.wikipedia.org/wiki/Lock_(water_navigation)

   The boat enters the lock. 8–9. The boat enters the lock. 3. The lower gates are closed. 10. The upper gates are closed. 4–5. The lock is filled with water from upstream. 11–12. The lock is emptied by draining its water downstream. 6. The upper gates are opened. 13. The lower gates are opened. 7. The boat exits the lock. 14. The boat exits ...

5. Caisson lock - Wikipedia

   en.wikipedia.org/wiki/Caisson_lock

   The caisson lock is a type of canal lock in which a narrowboat is floated into a sealed watertight box and raised or lowered between two different canal water levels. It was invented in the late 18th century as a solution to the problem posed by the excessive demand for water when conventional locks were used to raise and lower canal boats ...

6. Phoenician joint - Wikipedia

   en.wikipedia.org/wiki/Phoenician_joint

   A piece of wood called a tenon, usually taking the form of a rectangle, is inserted into each mortise to join the two planks together. The assembly is locked by driving a peg (or dowel pin or treenail) through one or more holes drilled through the mortise side wall and tenon. This technique is known as Phoenician joint when applied to shipbuilding.

7. Ordered to put his boat behind a fence, he added a mural that ...

   www.aol.com/news/ordered-put-boat-behind-fence...

   A man from the city of Seaside was ordered to cover his boat behind a 6-foot-tall fence. He complied but, in the process, took a jab at City Hall.