See principal stress (normal).

The total diffuse and direct insolation on a horizontal surface, averaged over a specified period of time.

The stay that the jib is hoisted on. Usually the headstay.

A type of weld cracking that usually occurs below 203

Money, in the form of notes and coins, which constitutes payment for goods at the time of.

The first closing date is one of the milestones in the process by which one company takes over.

River and Harbour Service.

A unit or measure of electricity supply or consumption of 1,000 Watts over the period of one hour; equivalent to 3,412 Btu.

Mesh is the number of openings in a square inch of screen or sieve. It is equal to the square of the number of strands of metal or plastic screening per lineal inch. Standard US mesh screen # 16 equates to a 1.19 millimeter particle diameter, mesh size #4 ...

The arithmetic wind speed over a specified time period and height above the ground (the majority of U.S. National Weather Service anemometers are at 20 feet (6.1 meters).

The period of low energy demand, as opposed to maximum, or peak, demand.

A system capable of rotating about one axis.

The sudden heave of the ship.

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 transaction on a stock exchange by a broker or institution.

Ribbon, yarn, or other lightweight material attached to rigging or sails to indicate wind action or direction. Proper use of the telltales can help sailors improve their sail trim.

Aging under conditions of time and temperature greater than those required to obtain maximum change in a certain property, so that the property is altered in the direction of the initial value.,/dd>

A lighted or unlighted fixed (non-floating) aid to navigation that serves as a signal or indication for guidance or warning. (Lights and daybeacons both constitute "beacons.")

A house built into the ground or slope of a hill, or which has most or all exterior surfaces covered with earth.

(1) The rolled up part of a sail, tied with the reef lines, that is used to reduce sail area for heavy winds; To reduce the sail area. (2) A group of rocks or coral generally at a depth shallow enough to present a hazard to navigation.