beam-length ratio
21J/27 — The Rod Johnstone designed J27, is an active sailboat racing class with strict class rules. 211 boats were built between 1983 and 1992. [ [http://www.sailingworld.com/sailboats/boat reviews/j27 200599.html Sailing World J/27 ] ] [… …
22Type 42 destroyer — HMS Birmingham Class overview Name: Type 42 Builders: Several different …
23USCGC Conifer (WLB-301) — The USCGC Conifer (WLB 301) was a 180 foot (55 m) seagoing buoy tender. Conifer and her sister ships, commonly referred to as one eighties , served as the backbone of the Coast Guard s Aids to Navigation fleet for over 50 years before their… …
24Mechanical advantage device — Beam balanced around a fulcrum A simple machine that exhibit mechanical advantage is called a mechanical advantage device e.g.: Lever: The beam shown is in static equilibrium around the fulcrum. This is due to the moment created by vector force A …
25optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… …
26radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …
27bridge — bridge1 bridgeable, adj. bridgeless, adj. bridgelike, adj. /brij/, n., v., bridged, bridging, adj. n. 1. a structure spanning and providing passage over a river, chasm, road, or the like. 2. a connecting, transitional, or intermediate route or… …
28Clutter (radar) — Clutter is a term used for unwanted echoes in electronic systems, particularly in reference to radars. Such echoes are typically returned from ground, sea, rain, animals/insects, chaff and atmospheric turbulences, and can cause serious… …
29motion-picture technology — Introduction the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… …
30Antenna (radio) — Whip antenna on car …
