Sailing in the same direction as the wind with the wind coming from the stern.

A heat exchanger that transfers the heat contained in a liquid heat transfer fluid to air.

The settings on a pressure switch used to either load or unload the air compressor on a constant speed application, or start or stop the compressor on a start/stop application. The cut out pressure is also known as the maximum pressure, or the point at wh ...

A type of solar thermal collector that has tubes (pipes) that the heat transfer fluid flows through that are connected to a flat absorber plate.

A person who commits to guarantee the debts of another. For example if an individual fails to meet.

Phase Shift Keying. A form of phase modulation of a data signal performed by a modem for transmission over dedicated wire or phone lines.

See constant-level balloon.

Stability

Covered tunnels within a ship through which the tail shafts pass.

The distance the ship's side falls in towards the center line above the load water line. Opposite of flare.

In the US, an annuity which guarantees payments to an annuitant which are fixed for life or a.

The market of securities trading without the participation of brokers, thus obviating commission.

The process of payment clearance between two.

A form of steam engine where a piston moves back and forth inside a cylinder, transmitting its motion to a driving shaft by a connecting rod and crank.

The north end of the earth's axis and also called North Geographic Pole. The direction indicated by 000

A container that holds rock used as the thermal mass to store solar energy in a solar heating system.

The duct(s) of a forced air heating/cooling system through which heated or cooled air is supplied to rooms by the action of the fan of the central heating or cooling unit.

Air pressure

By international agreement, a period during which greatly increased observation of world-wide geophysical phenomena is undertaken through the co-operative effort of participating nations. July 1957-December 1958 was the first such year. However, precedent ...

Cubic feet per minute (cfm) of air required at the inlet to the distribution system.