Pascal Second Converter
Convert Pascal Second to Pound Foot Second 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.
Pound-Foot-Secondlbf·ft·s
Target UnitThe pound-foot-second (lbf·ft·s) is a unit of power in the imperial system, defined as the rate at which work is done when one pound of force is applied over a distance of one foot in one second. This unit is often used in engineering and physics to describe mechanical power, particularly in the context of engines and machinery. The pound-foot-second reflects the relationship between force, distance, and time, and serves as a practical measure for various applications, especially in the United States.
Current Use
Today, the pound-foot-second is primarily used in the United States and certain engineering fields to quantify power in machinery, engines, and structural applications. It is often referenced in specifications for motors and generators, where it provides a relatable measure for power output and efficiency. Its continued relevance in engineering education and practice ensures that it remains a vital part of the power measurement landscape.
Fun Fact
The pound-foot-second is often used interchangeably with horsepower in certain applications, where 1 horsepower equals approximately 550 lbf·ft/s.
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📐Conversion Formula
= × 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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Pound-Foot-Second
power • Non-SI
Definition
The pound-foot-second (lbf·ft·s) is a unit of power in the imperial system, defined as the rate at which work is done when one pound of force is applied over a distance of one foot in one second. This unit is often used in engineering and physics to describe mechanical power, particularly in the context of engines and machinery. The pound-foot-second reflects the relationship between force, distance, and time, and serves as a practical measure for various applications, especially in the United States.
History & Origin
The pound-foot-second system originated from the need for a practical measurement system for work and energy in mechanical contexts. Its roots can be traced back to the early days of engineering when the imperial system was widely adopted in Britain and later in the United States. The combination of pounds, feet, and seconds provides a familiar framework for engineers and technicians working in industrial environments.
Etymology: The term 'pound' comes from the Latin 'pondus', meaning weight, while 'foot' is derived from the Old English 'fōt', a traditional unit of length. 'Second' originates from the Latin 'secunda', referring to the second division of an hour in time.
Current Use
Today, the pound-foot-second is primarily used in the United States and certain engineering fields to quantify power in machinery, engines, and structural applications. It is often referenced in specifications for motors and generators, where it provides a relatable measure for power output and efficiency. Its continued relevance in engineering education and practice ensures that it remains a vital part of the power measurement landscape.
💡 Fun Facts
- •The pound-foot-second is often used interchangeably with horsepower in certain applications, where 1 horsepower equals approximately 550 lbf·ft/s.
- •Despite the global trend towards the metric system, the pound-foot-second is still widely used in the automotive industry for performance measurements.
- •The use of pound-foot-second highlights the historical influence of the British Imperial system on American engineering and manufacturing practices.
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🔗 Related Units
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Frequently Asked Questions
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To convert to , multiply your value by 1. For example, 10 equals 10 .
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The formula is: = × 1. This conversion factor is based on international standards.
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