A device for conditioning air in an interior space. A Room Air Conditioner is a unit designed for installation in the wall or window of a room to deliver conditioned air without ducts. A Unitary Air Conditioner is composed of one or more assemblies that u ...

A term from Latin meaning, "according to value."

A unit of pressure equal to 10' dyne per cm-' (101 barye), 1000 millibars. 29.53 inches of mercury.

A coating consisting of' a compound of the surface metal, produced by chemical or electrochemical treatments of the metal. Examples include chromate coatings on zinc, cadmium, magnesium, and aluminum and oxide and phosphate coatings on steel. See also chr ...

A trust which allows parents to give capital to a child and have the income from that capital.

The minimum demand experienced by a power plant.

To hold the mainsail or jib off to the side to cause the wind to blow onto the backside of the sail, used to slow a boat

(1) A cathode, usuully corrugated to give variable current densities, that is plated at low current densities to preferentially remove impurities from a plating solution. (2) A substitute cathode that is used during adjustment of operating conditions.

When, Where Ready

A rain gauge which indicates but does not record the amount of precipitation captured.

Long cylindrical bars of iron or copper, used to secure or unite the different parts of a vessel.

Where

A substance that reduces the surface tension of a liquid, thereby causing it to spread more readily on a solid surface.

A turbine in which the flow of a steam or gas is essentially parallel to the rotor axis.

An instrument for measuring electrical current in amperes.

The rear of a ship.

To remove the ballast from the a ship.

Petroleum Association of Japan

Winter North Atlantic

A counterclockwise change in wind direction. Backing winds with height are indicative of cold air advection (CAA).