effective wind direction
31Titan (moon) — Titan Titan in 2005 by Cassini spacecraft Discovery Discovered by Christiaan Huygens …
32Geophysical MASINT — is a branch of Measurement and Signature Intelligence (MASINT) that involves phenomena transmitted through the earth (ground, water, atmosphere) and manmade structures including emitted or reflected sounds, pressure waves, vibrations, and… …
33Galley — For other uses, see Galley (disambiguation). A model of a Maltese design typical of the 16th century, the last great era of the wargalley A galley is a type of ship propelled by rowers that originated in the Mediterranean region and was used for… …
34Natural ventilation — The ventilation system of a regular earthship. Natural ventilation is the process of supplying and removing air through an indoor space without using mechanical systems. It refers to the flow of external air to an indoor space as a result of wind …
35Phoenix (spacecraft) — This article is about the Mars lander. For the Star Trek spacecraft, see Phoenix (Star Trek). For other uses, see Phoenix (disambiguation). Phoenix Mars Mission Artist s impression of the Phoenix spacecraft as it lands on Mars Operator NASA …
36Self-steering gear — is equipment used on ships and boats to maintain a chosen course without constant human action. It is also known by several other terms, such as autopilot (borrowed from aircraft and considered incorrect by some) and autohelm (technically a… …
37lighthouse — /luyt hows /, n., pl. lighthouses / how ziz/. 1. a tower or other structure displaying or flashing a very bright light for the guidance of ships in avoiding dangerous areas, in following certain routes, etc. 2. either of two cylindrical metal… …
38Odor — Aroma redirects here. For other uses, see Aroma (disambiguation). Allegory of the senses by Jan Brueghel the Elder, Museo del Prado An odor or odour is caused by one or more volatilized chemical compounds, generally at a very low concentration,… …
39Line of battle — In naval warfare, the line of battle [If the fleet is in front of the flagship it is a line ahead , if behind a line astern .] is a tactic in which the ships of the fleet form a line, end to end. Its origins are traditionally ascribed to the navy …
40Fire-control system — Note: the term fire control may also refer to means of stopping a fire, such as sprinkler systems. A fire control system is a computer, often mechanical, which is designed to assist a weapon system in hitting its target. It performs the same task …
