Tube or tubes may refer to: * ''Tube'' (2003 film), a 2003 Korean film * "Tubes" (Peter Dale), performer on the Soccer AM television show * Tube (band), a Japanese rock band * Tube & Berger, the alias of dance/electronica producers Arndt Rörig and Marco Vidovic from Germany

Other media

* Tube, a freeware game for MS-DOS computers from Bullfrog Productions * ''TUBE.'', an

online magazine An online magazine is a magazine published on the Internet, through bulletin board systems and other forms of public computer networks. One of the first magazines to convert from a print magazine format to an online only magazine was the comput ...

about visual and performing arts, founded in 2012 in Sacramento, California * Series of tubes, an analogy for the Internet used by United States Senator Ted Stevens * Picture tube, term in Paint Shop Pro software for a small digital image with no background

Science, technology, and mathematics

Construction and mechanics

Tube (fluid conveyance) A tube, or tubing, is a long hollow cylinder used for moving fluids (liquids or gases) or to protect electrical or optical cables and wires. The terms "Pipe (fluid conveyance), pipe" and "tube" are almost interchangeable, although minor distin ...

, a long hollow cylinder used for moving fluids * Tube (structure), building designed to act like a hollow cylinder, cantilevered perpendicular to the ground * Inner tube, a component of vehicular tires *

Pneumatic tube Pneumatic tubes (or capsule pipelines, also known as pneumatic tube transport or PTT) are systems that propel cylindrical containers through networks of Tubing (material), tubes by Gas compressor, compressed air or by partial vacuum. They are use ...

, a method of transportation using compressed air * Shipping tube (or mailing tube) –

container A container is any receptacle or enclosure for holding a product used in storage, packaging, and transportation, including shipping. Things kept inside of a container are protected on several sides by being inside of its structure. The term ...

unit. * Structural tubing, a type of metal profile used in structural applications * An underground railway constructed in a circular tunnel by the use of a tunnelling shield

Electronics

* Tube (BBC Micro), an expansion bus on the BBC Micro computer *

Cathode-ray tube A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a phosphorescent screen. The images may represent electrical waveforms on an oscilloscope, a ...

, a component used in display devices such as televisions *

Vacuum tube A vacuum tube, electron tube, thermionic valve (British usage), or tube (North America) is a device that controls electric current flow in a high vacuum between electrodes to which an electric voltage, potential difference has been applied. It ...

, an electronic component

Mathematics

* Tube domain, in several complex variables *

Tubular neighborhood In mathematics, a tubular neighborhood of a submanifold of a smooth manifold is an open set around it resembling the normal bundle. The idea behind a tubular neighborhood can be explained in a simple example. Consider a smooth curve in the p ...

, in differential geometry *

Cylinder (geometry) A cylinder () has traditionally been a three-dimensional solid, one of the most basic of curvilinear geometric shapes. In elementary geometry, it is considered a prism with a circle as its base. A cylinder may also be defined as an infinite ...

, from elementary geometry

Other technologies

Tube (container) A tube, squeeze tube, or collapsible tube is a collapsible Packaging, package which can be used for viscous liquids such as toothpaste, artist's paint, adhesive, caulk, ointment, & ointments. Basically, a tube is a cylindrical, hollow piece with ...

, a type of packaging for pasty and viscous goods such as toothpaste *

Extension tube An extension tube, sometimes also called a closeup tube or an extension ring, is used with interchangeable lenses to increase magnification. This is most often used in macro photography. Construction The tube contains no optical elements; ...

, a tool for macro photography *

Test tube A test tube, also known as a culture tube or sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top and closed at the bottom. Test tubes are usually placed in s ...

, a piece of laboratory equipment

Other uses in science

* Eustachian tube, part of the structure of the ear * Lava tube, found in volcanic regions * Fungal tubes, mushroom structure

Transportation

* Hudson Tubes, a colloquial historical name for the PATH (rail system) * The Tube, a widely used name for the

London Underground The London Underground (also known simply as the Underground or as the Tube) is a rapid transit system serving Greater London and some parts of the adjacent home counties of Buckinghamshire, Essex and Hertfordshire in England. The Undergro ...

, a rapid transit train system *

Transbay Tube The Transbay Tube is an underwater rail tunnel that carries Bay Area Rapid Transit's four transbay lines under San Francisco Bay between the cities of San Francisco and Oakland, California, Oakland in California. The tube is long, and attaches ...

, an underwater rail tube across San Francisco Bay

Other uses

* Tube (toy), or swim ring, a toy that assists play on water * Tubes (peak), the second highest peak of the Mecsek mountain range in Hungary * Tubing (recreation), riding on an inner tube as a recreational activity * Yoplait Tubes or Go-Gurt, a brand of sweetened yogurt * A type of surf wave * Tube, Kakao Friends characters