A mechanical barometer used to measure air pressure for warnings of changing weather.

To spin out of control and capsize or nearly capsize; The turning of a boat broadside to the wind or waves, subjecting it to possible capsizing; a turning or swinging of the boat that puts the beam of the boat against the waves, creating a danger of swamp ...

The alternating motion of a boat, leaning alternately to port and starboard; the motion of a boat about its fore-and-aft axis.

To reach the end; to bring one object hard up against another, as when two blocks in a block and tackle arrangement are brought together.

A gas produced by many fruits and vegetables that accelerates the ripening and aging processes.

A pair of additional backstays temporarily rigged to provide extra support to the masts of square rigged vessels when sailing downwind.

The curved part of a ship's hull where the side and the flat bottom meet.

To keep close.

Anchor cable is caught around the fluke or an object is caught around the anchor .

Any object used to increase the drag of a boat and slow her down. Typically shaped like a parachute or cone opened underwater, drogues decrease a boat's speed in heavy weather. Also see sea anchor.

A device which operates compressors in sequence according to a programmed schedule.

Amount of time for a compressor to complete one cycle.

Pieces of plank bolted to the outer end of the bowsprit, to reeve the foretopmast stays through.

One which blows across a boat's side

A short piece of line spliced into the end of the clapper by which the bell is struck. Traditionally it is finished off with a double wall knot crowned in its end.

To capsize.

To approach something from upwind

The largest circle which can be inscribed on a sphere by a plane that cuts through the center of the sphere. On the earth, the equator is a great circle, as are all the meridians of longitude which pass through both poles. The shortest distance between tw ...

Temperature at which condesation first occurs and moisture is formed.

A sound signal device (not necessarily mechanically operated).