Pascal Second Converter
Convert Pascal Second to Exastokes and more • 56 conversions
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Unit Explanations
Pascal SecondPa·s
Source UnitThe pascal second (Pa·s) is the SI unit for dynamic viscosity, representing the internal friction of fluids. It quantifies the resistance of a fluid to flow when an external force is applied. A fluid with a dynamic viscosity of one pascal second will flow under a shear stress of one pascal at a rate of one meter per second. It is a derived unit, meaning it is defined in terms of the base SI units: kilograms (kg), meters (m), and seconds (s). The pascal second is critical in fluid dynamics, engineering, and various scientific disciplines where fluid behavior is studied.
Current Use
Today, the pascal second is widely used in various industries including chemical engineering, food processing, and materials science to characterize the flow properties of fluids. It is essential in applications involving lubrication, mixing, and fluid transport where understanding viscosity is crucial for efficiency and safety.
Fun Fact
The pascal second is named after Blaise Pascal, who also has the unit of pressure named after him.
ExastokesESt
Target UnitThe exastokes (symbol: ESt) is a non-SI unit of dynamic viscosity, defined as 10^18 stokes. It measures the internal friction of fluids, indicating their resistance to flow. The stoke, the base unit for kinematic viscosity in the centimeter-gram-second (CGS) system, relates to the area a fluid will cover under the influence of gravity. Therefore, an exastokes represents an extremely high value of viscosity, typically encountered in theoretical discussions or specific high-viscosity materials.
Current Use
Today, the exastokes is primarily used in advanced scientific research and theoretical studies involving ultra-viscous materials, such as certain polymers, biofluids, and complex fluids. Its use is largely confined to academic and industrial settings where extremely high viscosity values need to be quantified, helping scientists and engineers understand fluid behavior under various conditions.
Fun Fact
The viscosity of honey can be approximately 10,000 times that of water, making it a practical example of a high-viscosity fluid.
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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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Pascal Second
viscosity • Non-SI
Definition
The pascal second (Pa·s) is the SI unit for dynamic viscosity, representing the internal friction of fluids. It quantifies the resistance of a fluid to flow when an external force is applied. A fluid with a dynamic viscosity of one pascal second will flow under a shear stress of one pascal at a rate of one meter per second. It is a derived unit, meaning it is defined in terms of the base SI units: kilograms (kg), meters (m), and seconds (s). The pascal second is critical in fluid dynamics, engineering, and various scientific disciplines where fluid behavior is studied.
History & Origin
The pascal second was introduced as part of the metric system in the late 20th century, named after Blaise Pascal, a French mathematician and physicist known for his contributions to fluid mechanics and pressure. The unit was formalized in 1971 during the 14th General Conference on Weights and Measures, which aimed to standardize units for scientific accuracy and international communication.
Etymology: The term 'pascal' is derived from the name of Blaise Pascal, while 'second' refers to the time unit in the SI system.
Current Use
Today, the pascal second is widely used in various industries including chemical engineering, food processing, and materials science to characterize the flow properties of fluids. It is essential in applications involving lubrication, mixing, and fluid transport where understanding viscosity is crucial for efficiency and safety.
💡 Fun Facts
- •The pascal second is named after Blaise Pascal, who also has the unit of pressure named after him.
- •Dynamic viscosity can change with temperature; for example, heating honey makes it flow more easily.
- •The viscosity of air is significantly lower than that of most liquids, making it easier for objects to move through it.
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Exastokes
viscosity • Non-SI
Definition
The exastokes (symbol: ESt) is a non-SI unit of dynamic viscosity, defined as 10^18 stokes. It measures the internal friction of fluids, indicating their resistance to flow. The stoke, the base unit for kinematic viscosity in the centimeter-gram-second (CGS) system, relates to the area a fluid will cover under the influence of gravity. Therefore, an exastokes represents an extremely high value of viscosity, typically encountered in theoretical discussions or specific high-viscosity materials.
History & Origin
The concept of viscosity dates back to the early study of fluid dynamics, but the term 'stokes' was introduced by the British scientist Sir George Gabriel Stokes in the 19th century. The exastokes emerged as a convenient unit for expressing extraordinarily high values of viscosity in scientific literature and research, especially in theoretical physics and engineering contexts.
Etymology: The name 'exastokes' derives from the prefix 'exa-', meaning 10^18, combined with 'stokes', named after Sir George Gabriel Stokes.
Current Use
Today, the exastokes is primarily used in advanced scientific research and theoretical studies involving ultra-viscous materials, such as certain polymers, biofluids, and complex fluids. Its use is largely confined to academic and industrial settings where extremely high viscosity values need to be quantified, helping scientists and engineers understand fluid behavior under various conditions.
💡 Fun Facts
- •The viscosity of honey can be approximately 10,000 times that of water, making it a practical example of a high-viscosity fluid.
- •In extreme conditions, such as in the interior of planets, the viscosity can reach values in the range of exastokes.
- •Certain synthetic materials can be engineered to have viscosity values that fall into the exastokes range, pushing the boundaries of traditional fluid dynamics.
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