The atmospheric pressure at mean sea level either directly measured by stations at sea level or empirically determined from the station pressure and temperature by stations not at sea level. Used as a common reference for analyses of surface pressure patt ...

The center plank on a wooden deck.

An instrument for measuring differences of electric potential.

Small trading vessel also used for exploration. Three-masted, being square-rigged on the two forward masts, and having a lateen rigged mizzen mast. Christopher Colmbus' small squadron, the Santa Maria, Pinta, and Nina, were all Caravels, as were Magellan' ...

A thermal storage wall is a south-facing wall that is glazed on the outside. Solar heat strikes the glazing and is absorbed into the wall, which conducts the heat into the room over time. The walls are at least 8 in thick. Generally, the thicker the wall, ...

Small boat carried on the vessel and used in case of emergency.

The sudden heave of the ship.

Forty Foot Equivalent Units (Containers).

in United States weather observing practice, the highest "instantaneous" wind speed recorded at a station during a specified period, usually the 24-hour observation day. Therefore, a peak gust need not be a true gust of wind.

The bridge used for taking observations, or directing the handling of the ship.

The addition of dopants to a semiconductor.

A statement of the electric rate(s), terms, and conditions for electricity sale or supply.

This is an independent regulatory agency within the U.S. DOE that has jurisdiction over interstate electricity sales, wholesale electric rates, natural gas pricing, oil pipeline rates, and gas pipeline certification. It also licenses and inspects private, ...

A signboard attached to a daybeacon to convey navigational information presenting one of several standard shapes (square, triangle, rectangle) and colors (red, green, orange, yellow, or black). Daymarks usually have reflective material indicating the sha ...

Chromium plated for engineering rather than decorative applicactions.

To windward, in the direction of the eye of the wind; toward the wind; in the direction from which the wind is coming

A line used to tighten the leech of a sail, helping to create proper sail shape.

A bulkhead that will not let water pass from one side of it to the other.

A professional person qualified to give advice to clients regarding investments such as life.

A floating island of ice. Only one-ninth of the total mass of an iceberg is visible above water level.