surface of buoyancy
71Archimedes — For other uses, see Archimedes (disambiguation). Archimedes of Syracuse (Greek: Ἀρχιμήδης) …
72Argonaut (animal) — For other uses, see Argonaut. Argonauts Temporal range: Miocene – Recent …
73Demersal fish — Bluespotted ribbontail ray resting on the seafloor Demersal fish live on or near the bottom of the sea or lakes.[1] They occupy the sea floors and lake beds, which usually consist of mud, sand, gravel or rocks …
74Vent (submarine) — A vent is a valve fitted to the top of a submarine s ballast tanks for the purposes of allowing the escape of air.The vent allows air contained in the tank to escape from the top of the ballast tank and be replaced by water entering through the… …
75Rear flank downdraft — The rear flank downdraft or RFD is a region of dry air wrapping around the back of a mesocyclone in a supercell thunderstorm. These areas of descending air are thought to be essential in the production of many supercellular tornadoes. Large hail… …
76Dimensionless quantity — In dimensional analysis, a dimensionless quantity or quantity of dimension one is a quantity without an associated physical dimension. It is thus a pure number, and as such always has a dimension of 1.[1] Dimensionless quantities are widely used… …
77Buoy — A buoy is a floating device that can have many different purposes, which determine whether the buoy is anchored (stationary) or allowed to drift. The word, of Old French or Middle Dutch origin, is nowadays most commonly pronEng|ˈbɔɪ (identical… …
78Cheerio effect — In fluid mechanics, the cheerio effect is the tendency for small wettable floating objects to attract one another. The comedian and author Rich Hall called this effect cheeriomagnetization , using it as an example of a word that needed to be… …
79Airship — For other uses, see Airship (disambiguation). Dirigible redirects here. For the 1931 film, see Dirigible (film). Not to be confused with Balloon (aircraft) or Blimp. Airship …
80Fluid statics — (also called hydrostatics) is the science of fluids at rest, and is a sub field within fluid mechanics. The term usually refers to the mathematical treatment of the subject. It embraces the study of the conditions under which fluids are at rest… …
