Flotation (also spelled floatation) involves phenomena related to the relative

buoyancy Buoyancy (), or upthrust, is an upward force exerted by a fluid that opposes the weight of a partially or fully immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid. Thus the p ...

of objects. The term may also refer to: * Flotation (archaeology), a method for recovering very small artefacts from excavated sediments *

Flotation (shares) An initial public offering (IPO) or stock launch is a public offering in which shares of a company are sold to institutional investors and usually also to retail (individual) investors. An IPO is typically underwritten by one or more investment ...

, an initial public offering of stocks or shares in a company *Flotation, any material added to the

hull Hull may refer to: Structures * Chassis, of an armored fighting vehicle * Fuselage, of an aircraft * Hull (botany), the outer covering of seeds * Hull (watercraft), the body or frame of a ship * Submarine hull Mathematics * Affine hull, in affi ...

of a watercraft to keep the hull afloat *Flotation, the ability (as of a tire or snowshoes) to stay on the surface of soft ground or snow *"Floatation", a 1990 electronic music song by The Grid * Flotation process, in process engineering, a method for the separation of mixtures ** Dissolved air flotation (DAF), a water treatment process **

Froth flotation Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, wh ...

, a process for separating hydrophobic from hydrophilic materials **

Induced gas flotation Induced gas flotation (IGF) is a water treatment process that clarifies wastewaters (or other waters) by the removal of suspended matter such as oil or solids. The removal is achieved by injecting gas bubbles into the water or wastewater in a flota ...

, a water treatment process that clarifies wastewaters (or other waters) by the removal of suspended matter such as oil or solids *Flotation therapy, a technique whereby users 'float' in an

isolation tank An isolation tank, sensory deprivation tank, float tank, float pod, float cabin, flotation tank, or sensory attenuation tank is a water filled, pitch-black, light-proof, soundproof environment heated to the same temperature as the skin, developed ...

See also