A metal that readily combines with oxygen at elevated temperatures to form very stable oxides, for example, titanium, zirconium, and beryllium. Reactive metals may also become embrittled by the interstitial absorption of oxygen, hydrogen, and nitrogen.

The sequence of numbers in which each number is the sum of the two preceding numbers..

A mallet used for passing serving around a line.

imposes a 50-percent tariff on maintenance and repair work done on U.S.-flag vessels in foreign shipyards. Also, U.S.-flag vessels must either be built in the United States or have been a U.S.-flag vessel for at least 3 years to be eligible to carry prefe ...

One of the 4 cardinal compass points. North is the direction toward the North Pole and is at 0

Abbreviation for "Please Authorize Delivery Against Guarantee." A request from the consignee to the shipper to allow the carrier or agent to release cargo against a guarantee, either bank or personal. Made when the consignee is unable to produce original ...

Materials with various qualities that are applied to glass windows before installation. These coatings reduce radiant heat transfer through the window and also reflects outside heat and a portion of the incoming solar energy, thus reducing heat gain. The ...

A hydrostatic principle that pressure supplied to an enclosed fluid is transmitted undiminished to every portion of the fluid and to the walls of the containing vessel.

Fidenavis S.A. (Spanish Class Society)

A protective or decorative nonmetallic coating produced in silo by chemical reaction of a metal with a chosen environment. It is often used to prepare the surface prior to the application of an organic coating.

The equipment used to sail a boat, including sails, booms and gaffs, lines and blocks, etc.

An ornamental carved and painted figure on the stem of the vessel.

The amount of work done on or by a system is equal to the amount of energy transferred to or from the system.

An item such as a nail, screw, rivet or other device used to fasten objects together.

(1) The formation at high temperatures of thick corrosion product layers on a metal surface. (2) The deposition of water-insoluble constituents on a metal surface.

General name for an instrument designed to measure the vertical component of the wind speed. See anemoclinometer.

Net Present Value

An officer who attends to the berthing, etc., of ships in a harbor.

Tightly woven cloth used for sails, awnings, covers, dodgers and biminis; slang for sails.

A small boat intended to be used only for short sails or racing.