The compression of an air actuator (air spring) below its design height.

A fabric cone attached to a metal ring and used to indicate wind direction. often at airfields.

The temperature at which a solid substance undergoes fusion, i.e. melts, changes from solid to liquid form. All substances have their characteristic melting points. For very pure substances the temperature range over which the process of fusion occurs is ...

A situation where the exercise price of a call/put option approximates to the current market price.

(1) In good condition. (2) To adjust to proper shape or size.

Ship Structure Committee

Distance at sea is measured in nautical miles, which are about 6067.12 feet, 1.15 statute miles or exactly 1852 meters. Nautical miles have the unique property that a minute of latitude is equal to one nautical mile - Measurement of speed is done in knots ...

Generic term for rapid variations in apparent position, brightness, or color of a distant luminous. object viewed through the atmosphere.

Small staysail located between the foremast and mainmast.

A device that tracks the movement of the sun; used to orient solar concentrating systems.

A measure of the electrical resistance of a material equal to the resistance of a circuit in which the potential difference of 1 volt produces a current of 1 ampere.

The test or specimen electrode in an electrochemical cell.

Having no sails up. In heavy weather the windage of the mast and other spars can still be enough to move the boat.

The direction to which a compass points. Magnetic north differs from true north because the magnetic fields of the planet are not exactly in line with the north and south poles. Observed differences between magnetic and true north is known as magnetic var ...

An instrument for determining the direction of cloud motion. There are two basic designs of nephoscope, the directvision nephoscope and the mirror nephoscope.

Sea water used for ballast, let into the double bottom, or into a water-ballast tank, or trimming tanks.

A conductor or system of conductors for radiating and/or receiving radio energy. Also called aerial.

To break loose from a mooring, anchor or docking.

The change in the measured transducer output caused by changes in ambient temperature. Usually expressed a percentage of full scale.

Costs that vary directly with the level of activity within a short time. Examples include costs of moving cargo inland on trains or trucks, stevedoring in some ports, and short-term equipment leases. For business analysis, all costs are either defined as ...