A measurement of the movement of the price of a particular stock compared with the movement of the.

An atom, or group of atoms, that has gained or lost one or more outer electrons and thus carries an electric charge. Positive ions, or cations, are deficient in outer electrons. Negative ions, or anions, have an excess of outer electrons.

The forward edge of a fore-and-aft sail

A method of winds aloft observation in which the elevation and azimuth angles of a theodolite are read while visually tracking a pilot balloon. Balloon height data is estimated from assumed balloon ascension rates.

An elevated guardrail set up at the bow of a vessel. When erected at the stern, it is called a pushpit.

A metallic pad, usually embedded in concrete, on which the compressor feet are mounted.

A type of furnace in which fuel is spread, automatically or mechanically, across the furnace grate.

A term, used by some assurance companies, as an alternative to.

An accounting term which refers to the amount a company pays in the form of interest on cash.

When the two blocks of a tackle have been drawn as close together as possible.

Old term for waking a sailor asleep on watch by throwing a bucket of cold water over him.

One complete turn of the line around a cleat, spar or another line.

A high-intensity discharge lamp type that uses mercury and several halide additives as light-producing elements. These lights have the best Color Rendition Index (CRI) of the High-Intensity Discharge lamps. They can be used for commercial interior lightin ...

A set of four twistable bayonet type shear keys used as part of a spreader to pick up a container or as part of a chassis to secure the containers.

A process used to apply photovoltaic semi-conductor material to a substrate by a physical vapor deposition process where high-energy ions are used to bombard elemental sources of semiconductor material, which eject vapors of atoms that are then deposited ...

A column of gas at standard conditions of temperature and pressure (32 degrees Fahrenheit and one atmosphere).

A craft which is operable on or above water and which has characteristics different from those of conventional displacement ships. Within the aforementioned generality, a craft which complies with either of the following characteristics: .I the weight, ...

The point (physical and/or electrical) where two distinct data processing elements meet.

Knees placed in the forward part of a vessel, across the stem, to unite the bows on each side. (See PLATE 3.)

The space provided for stowage of provisions or other materials.