Materials

Newly Industrialized Country

National Weather Service. Administered by the U.S. Department of Commerce.

The distance between a rope's adjacent strands, giving a measure of the tightness of the lay. The shorter the distance, the harder the lay. When a line has been overused and the lay has become slack, it is said to be slack-jawed.

A mythical creature, half human and half fish.

An opening in a ship's deck for the loading and discharging of any kind of cargo.

A pump which is used to deliver air to the aquarium. The pump pushes air through silicon tubing and to air stones or other aquatic decor. They are also an essential for UGF's (undergravel filters). An air stone is placed in each clear tube. When the air b ...

A method for making sheets of polycrystalline silicon in which silicon dendrites are slowly withdrawn from a melt of silicon whereupon a web of silicon forms between the dendrites and solidifies as it rises from the melt and cools.

Is the pressure exerted by a vapor confined within a given space. The vapor may be the sole occupant of the space, or may be associated with other gases.

A galvanic cell resulting from difference in oxygen concentration between two locations; See differential aeration cell.

Metal or wooden peg inserted in gunwale of a boat for an oar to heave against when rowing without crutch or rowlock.

When compressed air is forced through a submerged perforated hose or pipe. Some applications include; ice prevention, reduction of salt intrusion, underwater basting, pneumatic breakwaters and general mixing and agitation

Level (LEVL)

Naval Sea System Command

A type of anchor with a heavy inverted mushroom shaped head. Mushroom anchors are used to anchor in mud and other soft ground.

A yard or pole extending the head or foot of the topsail beyond the topmast or gaff of a gaff-rigged boat

International Convention on Oil Pollution Preparedness,Response and Co-operation, IMO

The process of moving air (changing) into and out of an interior space either by natural or mechanically induced (forced) means.

Manufacturing Technology Program.

A type of vertical-axis wind machine that has long, thin blades in the shape of loops connected to the top and bottom of the axle; often called an "eggbeater windmill."