Has to do with the properties of air-water vapor mixtures in the atmosphere.

Machines in which axial vanes slide radially in an eccentrically mounted rotor.

The Greek god of the sea.

A coating or precipitate deposited on surfaces such as water pipes, steam boilers that are in contact with hard water. Water that contains carbonates or bicarbonates of calcium or magnesium are likely to cause scale when heated.

Ice broken into pieces, and projecting very little above sea level.

A knot widely used when making a boat fast to a post or bollard.

The pressure encountered on the return side of a system.

The operation of tarring and blacking the rigging or hull to act as a preservative against the action of salt water. the best mixture was said to be coal tar, vegetable tar, and salt water boiled together and laid on hot.

An unhandy seaman.

Wing-like retractable devices extending from the sides of the vessel to dampen down rolling in seas and produce a steadier, smoother, and more comfortable motion.

A contract term meaning both parties agree to provide something for the other.

National Electrical Manufacturers Association.

A compressor belonging to the group of displacement rotary compressors, a type of valve less displacement machine. Also referred to as "Roots blower".

Trailer on which shipping containers are carried when moved by road.

The portion of a safety/relief valve that surrounds the spring. The spring housing.

The deck chest in which the bos'n keeps his deck gear.

First voyage of a ship.

(1) A spar. Such as a pole used to position a sail (e.g., spinnaker pole or whisker pole, which serves the same purpose for a jib). (2) One of the two points around which the earth spins, known as the north and south poles.

Place where cargo leaves the care and custody of carrier.

A lift truck fitted with lifting attachments operating to one side for handling containers.