The ability of a seaman to foretell weather by the appearance of the sky, change of wind direction, etc. was handed down in the form of proverbs. Some well known are:

An electrical current that periodically reverses its direction. Standard in US and Canada is 60 cycles per second. Europe and other countries is 50 cycles per second.

A device for applying a fine spray by compressed air.

Overhanging part of a vessel's stern. The area of the upper deck of a ship that is nearest the stern.

A crack or hole that accidentally admits a gas or lets it escape.

Standard pressure and temperature. See standard air.

A spring line from the stern of a boat to mid ships to stop forward movement

A line secured along the deck to lay hold of in heavy weather; a line thrown on board a wreck by life-saving crew; a knotted line secured to the span between life-boat davits for the use of the crew when hoisting and lowering

An electronic communications or direction finding system which uses Very High Frequency radio waves. VHF radios are the most common communications radio carried on boats, but their range is usually limited to line of sight between the transmitting and rec ...

A compressor belonging to the group of dynamic compressors. Characterized by having its flow in the axial direction.

For gauging purposes a transverse section including all longitudinal members such as plating, longitudinals and girders at the deck, side, bottom, inner bottom and longitudinal buklheads.

On square-rigged ships, a form of ceremonial salute to honor the visit of a high official. The yards were lined by men standing upon them, and there was also a man standing on the truck of each topgallant mast.

The compass points of North, East, South and West. Intercardinal or half-cardinal points are Southeast, Southwest, Northwest and Northeast

Is a measure of resistance to deformation, or reluctance to be squeezed out a bearing. Indicates the internal friction of a fluid. Viscosity in normal lubricants is reduced as temperature increases

Also known as a steaming light. The masthead light is a white light that is visible for an arc extending across the forward 225

In navigation, the angle between the point at which the sun rises and sets and the true east and west points of the horizon.

A line used to hoist or lower a sail, flag or spar. The tightness of the halyard can affect sail shape.

U.S. classification society which certifies seagoing vessels for compliance to standardized rules regarding construction and maintenance.

A movable block and tackle used on board for a variety of purposes, including the handling of cargo in holds.

Said of a line that leads from its point of attachment towards the stern of the ship.