Poise Converter
Convert Poise to Attostokes and more • 56 conversions
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Unit Explanations
PoiseP
Source UnitThe poise (symbol: P) is a unit of dynamic viscosity in the centimeter-gram-second (CGS) system of units. It is defined as the viscosity of a fluid that exerts a shear stress of one dyne per square centimeter when a velocity gradient of one reciprocal second is applied. In essence, one poise corresponds to a viscosity of 1 g/(cm·s). This unit is particularly useful in fields involving fluid mechanics and rheology, where the flow properties of liquids are analyzed.
Current Use
The poise is commonly used in laboratories and industries that deal with fluid properties, such as food processing, pharmaceuticals, and materials science. It is particularly relevant for measuring the viscosity of non-Newtonian fluids and biological fluids, such as blood, where understanding flow behavior is crucial. While the SI unit pascal-second is preferred in many scientific contexts, the poise remains popular in specific applications.
Fun Fact
The poise was historically significant in the study of blood flow, influencing medical research and treatments.
AttostokesaSt
Target UnitAn attostokes (aSt) is a unit of dynamic viscosity that is equal to 10^-18 stokes. It measures the resistance of a fluid to flow, specifically in terms of the force required to move one layer of fluid over another. The stokes (St) is defined as the viscosity of a fluid in which a force of one dyne per square centimeter causes a velocity of one centimeter per second. The attostokes, as a subunit, allows for the measurement of extremely low viscosities that are relevant in fields such as nanotechnology and molecular biology.
Current Use
Attostokes is primarily used in specialized areas of science and engineering, particularly where very low viscosities are important, such as in the study of biological fluids, nanofluids, and in the development of new materials. As nanotechnology advances, the ability to measure viscosity accurately at this scale becomes crucial for innovation in various fields.
Fun Fact
The attostokes allows scientists to measure viscosities that are a million times lower than those commonly encountered in everyday fluids.
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= × 1.00000How to Convert
To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.
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Poise
viscosity • Non-SI
Definition
The poise (symbol: P) is a unit of dynamic viscosity in the centimeter-gram-second (CGS) system of units. It is defined as the viscosity of a fluid that exerts a shear stress of one dyne per square centimeter when a velocity gradient of one reciprocal second is applied. In essence, one poise corresponds to a viscosity of 1 g/(cm·s). This unit is particularly useful in fields involving fluid mechanics and rheology, where the flow properties of liquids are analyzed.
History & Origin
The poise was named after the French scientist Jean Louis Marie Poiseuille, who made significant contributions to the study of fluid dynamics in the 19th century. His work focused on the flow of liquids in tubes, and he is best known for deriving Poiseuille's law, which describes the laminar flow of incompressible fluids. The term was introduced in the 19th century and has been widely used in scientific literature since then, particularly in relation to the study of blood viscosity and other biological fluids.
Etymology: The term 'poise' is derived from the surname of Jean Louis Marie Poiseuille, reflecting his foundational work in fluid dynamics.
Current Use
The poise is commonly used in laboratories and industries that deal with fluid properties, such as food processing, pharmaceuticals, and materials science. It is particularly relevant for measuring the viscosity of non-Newtonian fluids and biological fluids, such as blood, where understanding flow behavior is crucial. While the SI unit pascal-second is preferred in many scientific contexts, the poise remains popular in specific applications.
💡 Fun Facts
- •The poise was historically significant in the study of blood flow, influencing medical research and treatments.
- •One poise is equivalent to 0.1 pascal-seconds, showing the relationship between CGS and SI units.
- •The term 'centipoise' (cP) is commonly used in industries, where 1 P equals 100 cP, making it easier to express lower viscosities.
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Attostokes
viscosity • Non-SI
Definition
An attostokes (aSt) is a unit of dynamic viscosity that is equal to 10^-18 stokes. It measures the resistance of a fluid to flow, specifically in terms of the force required to move one layer of fluid over another. The stokes (St) is defined as the viscosity of a fluid in which a force of one dyne per square centimeter causes a velocity of one centimeter per second. The attostokes, as a subunit, allows for the measurement of extremely low viscosities that are relevant in fields such as nanotechnology and molecular biology.
History & Origin
The concept of viscosity dates back to the early scientific inquiries into fluid mechanics in the 17th century. The stokes was first introduced in 1851 by Sir George Gabriel Stokes to quantify the viscosity of fluids. The prefix 'atto-' was later adopted in the late 20th century to denote one quintillionth (10^-18), allowing for the measurement of extremely low viscosity fluids, particularly in modern scientific applications.
Etymology: The term 'attostokes' derives from the prefix 'atto-' which is from the Danish word 'atten' meaning 'eighteen', combined with 'stokes', named after the physicist George Gabriel Stokes.
Current Use
Attostokes is primarily used in specialized areas of science and engineering, particularly where very low viscosities are important, such as in the study of biological fluids, nanofluids, and in the development of new materials. As nanotechnology advances, the ability to measure viscosity accurately at this scale becomes crucial for innovation in various fields.
💡 Fun Facts
- •The attostokes allows scientists to measure viscosities that are a million times lower than those commonly encountered in everyday fluids.
- •Research has shown that some biological fluids can have viscosities in the range of attostokes, which is critical for understanding cellular processes.
- •The prefix 'atto-' comes from the Danish word for eighteen, indicating the exponential scale of measurements in the metric system.
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