In physics, any process in which the flux density (or power, amplitude, intensity, illuminance, etc.) of a "parallel beam" of energy decreases with increasing distance from the source. Attenuation is always due to the action of the transmitting medium its ...

The ability of a boat to keep from being moved sideways by the wind. Keels, daggerboards, centerboards, and leeboards are all used to improve a boat's lateral resistance.

Generally, an instrument designed to measure or estimate the blueness of the sky. See Linke-scale.

Also VMG. Actual boat speed after adjusting for such factors as current and leeway.

A large body of air having similar horizontal temperature and moisture characteristics.

Same as windsock.

A building energy auditing technique used to determine and/or locate air leaks in a building shell or envelope.

A charge for the maximum rate at which energy is used during peak hours of a billing period. That part of a utility service charged for on the basis of the possible demand as distinguished from the energy actually consumed.

Those elements of building used to control the interior climate.

(1) A reaction in which there is an increase in valence resulting from a loss of electrons. Contrast with reduction. (2) A corrosion reaction in which the corroded metal forms an oxide; usually applied to reaction with a gas containing elemental oxygen, s ...

Club Through Transport Club

A composite metal containing, two or more layers that have been bonded together. The bonding may have been accomplished by co-rolling, co-extrusion, welding, diffusion bonding, casting, heavy chemical deposition, heavy electroplating, or explosive claddin ...

The pressure of the steam or water in a boiler as measured; usually expressed in pounds per square inch gauge (psig).

A clause in an insurance policy which specifies items or conditions not covered.

A suitable beach, being steep and sandy, where ships could be careened for cleaning or repair.

The current flowing to or from a unit area of an electrode surface, generally expressed as amps per sq ft or milliamperes per sq ft (also milliamps per sq cm, etc).

Loss of carbon from the surface layer of a carbon-containing alloy due to reaction with one or more chemical substances in a medium that contacts the surface. See also dealloying.

A metal air-tight tank built into a boat to insure flotation even when the boat is swamped.

Tanker Sulphuric Acid.

A professional person qualified to give clients financial planning.