Mens T-Shirts (Inches)

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From Wikipedia:

Submarine

A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which has only limited underwater capability. The term submarine most commonly refers to large crewed autonomous vessels; however, historically or more casually, submarine can also refer to medium sized or smaller vessels (midget submarines, wet subs), Remotely Operated Vehicles or robots. The word submarine was originally an adjective meaning "under the sea", and so consequently other uses such as "submarine engineering" or "submarine cable" may not actually refer to submarines at all. Submarine was shortened from the term "submarine boat", and is often further shortened to "sub".

Submarines are referred to as "boats" for historical reasons because vessels deployed from a ship are referred to as boats. The first submarines were launched in such a manner. The English term U-boat for a German submarine comes from the German word for submarine, U-Boot, itself an abbreviation for Unterseeboot ("undersea boat").

Although experimental submarines had been built before, submarine design took off during the 19th century. Submarines were first widely used in World War I, and feature in many large navies. Military usage ranges from attacking enemy ships or submarines, aircraft carrier protection, blockade running, ballistic missile submarines as part of a nuclear strike force, reconnaissance, conventional land attack (for example using a cruise missile), and covert insertion of special forces. Civilian uses for submarines include marine science, salvage, exploration and facility inspection/maintenance. Submarines can also be specialized to a function such as search and rescue, or undersea cable repair. Submarines are also used in tourism and for academic research.

Submarines have one of the largest ranges of capabilities in any vessel, ranging from small autonomous examples to one or two-person vessels operating for a few hours, to vessels which can remain submerged for 6 months such as the Russian Typhoon class. Submarines can work at greater depths than are survivable or practical for human divers. Modern deep diving submarines are derived from the bathyscaphe, which in turn was an evolution of the diving bell.

Most large submarines comprise a cylindrical body with hemispherical (and/or conical) ends and a vertical structure, usually located amidships, which houses communications and sensing devices as well as periscopes. In modern submarines this structure is the "sail" in American usage ("fin" in European usage). A "conning tower" was a feature of earlier designs: a separate pressure hull above the main body of the boat that allowed the use of shorter periscopes. There is a propeller (or pump jet) at the rear and various hydrodynamic control fins as well as ballast tanks. Smaller, deep diving and specialty submarines may deviate significantly from this traditional layout.

Ocean

An ocean (from Greek Ωκεανός, Okeanos (Oceanus)) is a large body of saline water, and a principal component of the hydrosphere. Approximately 71% of the Earth's surface (an area of some 361,000,000 square kilometres (139,000,000 sq mi)) is covered by ocean, a continuous body of water that is customarily divided into several principal oceans and smaller seas.

More than half of this area is over 3,000 metres (9,800 ft) deep. Average oceanic salinity is around 35 parts per thousand (ppt) (3.5%), and nearly all seawater has a salinity in the range of 30 to 38 ppt. Scientists estimate that 230,000 marine life forms of all types are currently known, but the total could be up to 10 times that number.

Exploration

Ocean travel by boat dates back to prehistoric times, but only in modern times has extensive underwater travel become possible.

The deepest point in the ocean is the Mariana Trench, located in the Pacific Ocean near the Northern Mariana Islands. It has a maximum depth of 10,923 metres (35,840 ft) . The British naval vessel, "Challenger II" surveyed the trench in 1951 and named the deepest part of the trench, the "Challenger Deep". In 1960, the Trieste successfully reached the bottom of the trench, manned by a crew of two men.

Much of the ocean bottom remains unexplored and unmapped. A global image of many underwater features larger than 10 kilometres (6.2 mi) was created in 1995 based on gravitational distortions of the nearby sea surface

Outlets and drains

Each of these plumbing fixtures has one or more water outlets and a drain. In some cases, the drain has a device that can be manipulated to block the drain to fill the basin of the fixture. Each fixture also has a flood rim, or level at which water will begin to overflow. Most fixtures also have an overflow, which is a conduit for water to drain away, when the regular drain is plugged, before the water actually overflows at the flood rim level. However, water closets and showers (that are not in bathtubs) usually lack this feature because their drains normally cannot be stopped.

Each fixture usually has a characteristic means of connection. Normal plumbing practice is to install a valve on each water supply line before the fixture, and this is most commonly termed a stop or "service valve". The water supply to some fixtures is cold water only (such as water closets and urinals). Most fixtures also have a hot water supply. In some occasional cases, a sink may have both a potable (drinkable) and a non-potable water supply.

Lavatories and water closets normally connect to the water supply by means of a supply, which is a tube, usually of nominal 3/8 in (U.S.) or 10 or 12 mm diameter (Europe and Middle East), which connects the water supply to the fixture, sometimes through a flexible (braided) hose. For water closets, this tube usually ends in a flat neoprene washer that tightens against the connection, while for lavatories, the supply usually ends in a conical neoprene washer. Kitchen sinks, tubs and showers usually have supply tubes built onto their valves which then are soldered or 'fast joint'ed directly onto the water supply pipes.

From Uncyclopedia:

Submarine

Nations and their significant contributions

With Diesel/electric propulsion proving viable, all future innovations in submarine weapons, engineering, or wartime tactics would no longer be carried out by indivduals but by entire teams of morons for the country which they represented. The following dubious accomplishments of man and nation are presented for your entertainment, in no particular order.

U.S.S.R:

The former Soviet Union had the world's most amazing submarines that far surpassed those of the rest of the world in all key areas. So extraordinary were they that the only way to destroy them was with a Soviet built torpedo. However, Soviet subs were so maneuverable they could elude any torpedo, Soviet or not, that was fired at it. Of course the Soviets wouldn't have any reason to fire on their own vessel, nor did her enemies even have access to Soviet built torpedoes...so where would this "magic torpedo" come from? Ironically it was found that the only torpedos in ideal targeting position were the ones sitting comfortably inside the torpedo room of the destroyed-sub-to-be. Being so close to the target, nay inside the target, they couldn't possibly miss. To trigger the destruction it wasn't necessary for this torpedo to be armed, aimed properly, or even loaded into the tube. Indeed they were quite fond of detonating spontaneously without any outside encouragement, much to the delight of the crew.

Thankfully I wasn't the captain on any of those ships, and now that we can be proud to call ourselves Russians once again, those days are behind us for good...well there was that one time...oh never mind. Did somebody mention Poland!

 

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