Poise Converter
Convert Poise to Attopoise 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.
AttopoiseaP
Target UnitThe attopoise (symbol: aP) is a subunit of viscosity in the centimeter-gram-second (CGS) system, specifically representing dynamic viscosity. One attopoise is equal to 10^-18 poise, which can be understood as the viscosity of a fluid that offers a resistance of 1 dyne to a shear stress of 1 dyne per square centimeter. It is a very small measure, useful for quantifying extremely low viscosities found in certain nanofluids and other specialized applications in the field of fluid dynamics.
Current Use
Today, the attopoise is primarily used in scientific research, particularly in the fields of nanotechnology, molecular biology, and advanced fluid mechanics. It enables researchers to describe and quantify the viscosity of extremely thin films, nanofluids, and other complex fluids where traditional units would be inadequate. Industries such as pharmaceuticals, materials science, and nanotechnology utilize the attopoise in their research and applications.
Fun Fact
The attopoise is one of the smallest units of viscosity used in scientific measurements.
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= × 1.00000How to Convert
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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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Attopoise
viscosity • Non-SI
Definition
The attopoise (symbol: aP) is a subunit of viscosity in the centimeter-gram-second (CGS) system, specifically representing dynamic viscosity. One attopoise is equal to 10^-18 poise, which can be understood as the viscosity of a fluid that offers a resistance of 1 dyne to a shear stress of 1 dyne per square centimeter. It is a very small measure, useful for quantifying extremely low viscosities found in certain nanofluids and other specialized applications in the field of fluid dynamics.
History & Origin
The attopoise was introduced in the context of modern measurements of viscosity, particularly to describe extremely low viscosities encountered in advanced materials and nanotechnology. Its definition helps to quantify the behavior of fluids at the nanoscale, where conventional viscosity measures become impractical. The term reflects the trend toward using metric prefixes to create smaller units for precise scientific applications.
Etymology: The term 'attopoise' is derived from the prefix 'atto-' meaning 10^-18, combined with 'poise', which is named after the French physicist Jean Léonard Marie Poiseuille, who studied the flow of liquids.
Current Use
Today, the attopoise is primarily used in scientific research, particularly in the fields of nanotechnology, molecular biology, and advanced fluid mechanics. It enables researchers to describe and quantify the viscosity of extremely thin films, nanofluids, and other complex fluids where traditional units would be inadequate. Industries such as pharmaceuticals, materials science, and nanotechnology utilize the attopoise in their research and applications.
💡 Fun Facts
- •The attopoise is one of the smallest units of viscosity used in scientific measurements.
- •Fluid dynamics at the nanoscale can behave very differently than at larger scales, necessitating the use of such small units.
- •The introduction of metric prefixes has allowed for a more standardized approach to measuring extremely small quantities across various scientific disciplines.
📏 Real-World Examples
🔗 Related Units
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