A steamship. A ship propelled by a steam engine.

A pneumatic percussive drill designed as a boring tool.

The total distribution of electromagnetic radiation emanating from the sun. The different regions of the solar spectrum are described by their wavelength range. The visible region extends from about 390 to 780 nanometers (a nanometer is one billionth of o ...

Energy that is transmitted by pressure waves in air or other materials and is the objective cause of the sensation of hearing.

In 1887 Charles Dow (as in 'The Dow Jones') developed two stock market 'averages':

The amount of precipitation falling in one day, or other specified period, that is likely to be equalled or exceeded in any given place only once in a century. That is, a precipitation amount that has a return period of 100 years.

Line attached to the bottom of the boom used to flatten the sail by pulling the boom down, and thus tightening the luff of the sail. (2) A line used for hauling down a jib or staysail.

(1) The land in general, but usually refers to that part adjacent to the water. (2) A timber used in damage control to brace bulkheads and decks. (3) One of the many wooden props by which the ribs or frames of a vessel are externally supported while build ...

To leave; to push a boat away from a pier or vessel's side.

Seaman who was born aboard a warship. As this was once considered to be one of the essentials of the perfect seaman, it has long been a complimentary term.

A window located on the roof of a structure to provide interior building spaces with natural daylight, warmth, and ventilation.

The rate (in liters or gallons per minute, cubic meters or cubic feet per second, or other quantity per time unit) Air related flows are usually expressed in CFM, SCFM, ACFM, ICFM

Any system, usually block & tackle or hydraulic, used to hold the boom down. This is useful for maintaining proper sail shape by exerting a downward pull on the boom, particularly when running or on a broad reach.

An urgent message used on a radio regarding the safety of people or property. A PAN PAN message is not used when there is an immediate threat to life or property, instead the MAYDAY call is used. PAN PAN situations may develop into MAYDAY situations. As w ...

Let the sail out by easing the sheet.

The quantity of heat that a cooling appliance is capable of removing from a room in one hour.

A short length of rope secured at one end, and used in securing or checking a running rope, e.g., deck stopper, boat fall stopper, etc.

The act of calling for freight by truck at the consignor's shipping platform.

Temporarily placed longitudinal bulkheads used to prevent bulk cargo from shifting.

Shipments loaded and sealed by shippers and not checked or verified by the carriers.