An opening in a ship's side, provided with a glazed lid or cover for the admission of light.

National Pollution Funds Center.

These lights use an electrically heated filament to produce light in a vacuum or inert gas-filled bulb.

The price paid for goods or services at the time of a transaction; a price that has not been adjusted to account for inflation.

To attach a line to something so that it will not move.

The energy in foot pounds required to compress polytropically and to transfer one pound of a given gas from one pressure level to another.

A bond which was issued at a rating of AAA to BBB (investment grade) which has since fallen in.

A flat tray, generally made of wood but occasionally of steel, on which goods particularly those in boxes, cartons or bags, can be stacked. Its purpose is to facilitate the movement of such goods, mainly by the use of forklift trucks.

The measurement and computation of wind speeds and directions at various levels above the surface of the earth. Methods include pilot balloon observations, rabals, rawin or rawinsonde observations, radar tracking, or acoustic sounding.

International Shipping Federation

The energy in foot pounds required to compress adiabatically and to deliver one pound of a given gas from one pressure level to another.

The ratio of the minimum amount of work or energy required to perform a task to the amount actually used.

This designates the resistance of a material to heat conduction. The greater the R-value the larger the number.

"NIMH" refers to nickel metal hydride; it's an updated and better version of a NiCd battery. It has more power and doesn't need to be fully discharged regularly, unlike a NiCd battery. It operates well in digital cameras, motorized children's toys and cor ...

Is any gas or gas mixture in which one or more of the constituents is at its saturated vapor pressure. The constituent at saturation pressure may or may not be water vapor.

Coasting Service.

A seal used to prevent the leakage of fluids, and also maintain the pressure in an enclosure.

The names of battles or individual ship actions in which a warship has taken part, usually displayed in a prominent place on a ship as a source of pride in her name. Known as Battle Stars in the U.S. Navy.

The maximum stress that a material can withstand for an infinitely large number of fatigue cycles. See also fatigue strength.

The force or load that produces elongation.