An expression used to the crew to indicate that the boat is about to tack.

An area of low barometric pressure, with its attendant system of winds. Also called a depression or cyclone.

The structure on deck where the donkey engine is located.

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.

(1) A ruffle on the water indicating a breath of wind during a calm (2) A twisting hitch made in the bight of a rope to form two eyes, through which the hook of a tackle is passed for hoisting purposes.

A device for removing heat from a gas or liquid stream for air conditioning/cooling.

The device in an air conditioner or heat pump through which the refrigerant is circulated and releases heat to the surroundings when a fan blows outside air over the coils. This will return the hot vapor that entered the coil into a hot liquid upon exitin ...

An additional extra tax.

The standard atmosphere is defined as the pressure exerted by a column of mercury 760 mm high with a density of 13,595 g/cm

In refrigeration, an evaporating temperature of 5 degrees Fahrenheit (F), a condensing temperature of 86 degrees F., liquid temperature before expansion of 77 degrees F., and suction temperature of 12 degrees F.

The abrupt and large increase in electrical conductivity exhibited by some metals as the temperature approaches absolute zero.

Nickname for the New York Stock.

A pricing model devised by Fischer Black and Myron Scholes in 1973.

A buried item, such as junk steel or graphite rods, that serves as the anode for the cathodic protection of pipelines or other buried structures. See also deep groundbed.

The temperature to which a sample of air must be cooled, while the mixing ratio and barometric pressure remain constant, in order to attain saturation by water vapor. When this temperature is below O

The normal working pressure for an air motor (6 bar).

In a solar photovoltaic device, an n-type dopant, such as phosphorus, that puts an additional electron into an energy level very near the conduction band; this electron is easily exited into the conduction band where it increases the electrical conductivi ...

To put in place of another; i.e., when an insurance company pays a claim it is placed in the same position as the payee with regard to any rights against others.

A scheme designed to allow homeowners to 'release' cash from the value of their property. They.

A red and white vertically striped buoy used in the United States to mark the middle of a channel. Midchannel buoys may be passed by on either side.