Pascal Converter
Convert Pascal to Picopascal and more • 57 conversions
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Unit Explanations
PascalPa
Source UnitThe pascal (Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus, and ultimate tensile strength. It is defined as one newton per square meter. In other words, it is the pressure exerted by a force of one newton acting uniformly over an area of one square meter. The pascal is a crucial unit in engineering, physics, and meteorology, providing a standard measure for atmospheric pressure, material strength, and force distribution. It allows for consistent and comparable measurements across various scientific and industrial fields.
Current Use
The pascal is widely used in various fields to measure pressure and stress. In meteorology, it is used to express atmospheric pressure, often in the form of hectopascals (hPa). In engineering, it helps evaluate the strength of materials and structures. The unit is also crucial in fluid mechanics, where it is used to determine fluid pressure in pipes and vessels. The pascal's versatility makes it a fundamental unit in both scientific research and practical applications, especially where precise pressure measurements are critical.
Fun Fact
The pascal is named after Blaise Pascal, who made significant contributions to the understanding of fluid pressure.
PicopascalpPa
Target UnitThe picopascal (pPa) is a subunit of pressure in the International System of Units (SI), defined as one trillionth (10^-12) of a pascal (Pa). The pascal, named after the French mathematician and physicist Blaise Pascal, is the SI unit of pressure, defined as one newton per square meter. The picopascal, therefore, provides a means to express extremely low pressures, which are often encountered in high-vacuum physics and certain environmental measurements, making it crucial for scientific and technical applications where precision is paramount.
Current Use
Today, the picopascal is widely used in fields requiring precise measurements of low pressure, such as in vacuum technology, meteorology, and aerospace. Instruments capable of measuring pressures in picopascals are essential for experiments in high-energy physics and for monitoring environmental conditions at altitudes where atmospheric pressure is extremely low.
Fun Fact
The picopascal is so small that it can measure pressures in conditions such as space, where traditional units would be impractical.
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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
pressure • SI Unit
Definition
The pascal (Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus, and ultimate tensile strength. It is defined as one newton per square meter. In other words, it is the pressure exerted by a force of one newton acting uniformly over an area of one square meter. The pascal is a crucial unit in engineering, physics, and meteorology, providing a standard measure for atmospheric pressure, material strength, and force distribution. It allows for consistent and comparable measurements across various scientific and industrial fields.
History & Origin
The pascal was named in honor of Blaise Pascal, a French mathematician, physicist, and inventor known for his contributions to fluid mechanics and the study of pressure. The unit was officially adopted as the SI unit for pressure in 1971, although the concept of pressure itself dates back to early scientific studies of fluids and gases. The pascal provided a standardized way to measure pressure, replacing a variety of non-standard units previously in use across different regions and industries.
Etymology: The term 'pascal' is derived from the name of Blaise Pascal.
Current Use
The pascal is widely used in various fields to measure pressure and stress. In meteorology, it is used to express atmospheric pressure, often in the form of hectopascals (hPa). In engineering, it helps evaluate the strength of materials and structures. The unit is also crucial in fluid mechanics, where it is used to determine fluid pressure in pipes and vessels. The pascal's versatility makes it a fundamental unit in both scientific research and practical applications, especially where precise pressure measurements are critical.
💡 Fun Facts
- •The pascal is named after Blaise Pascal, who made significant contributions to the understanding of fluid pressure.
- •One pascal is a very small pressure; it is equivalent to the pressure of a dollar bill lying flat on a table.
- •The human eardrum can detect pressure changes as small as 20 micropascals.
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Picopascal
pressure • Non-SI
Definition
The picopascal (pPa) is a subunit of pressure in the International System of Units (SI), defined as one trillionth (10^-12) of a pascal (Pa). The pascal, named after the French mathematician and physicist Blaise Pascal, is the SI unit of pressure, defined as one newton per square meter. The picopascal, therefore, provides a means to express extremely low pressures, which are often encountered in high-vacuum physics and certain environmental measurements, making it crucial for scientific and technical applications where precision is paramount.
History & Origin
The picopascal was introduced in the context of the metric system as a means to express very low pressure values, which became essential for modern physics and engineering. The pascal, as the base unit, was adopted in 1971 during the 14th CGPM, and subunits like the picopascal followed as the need for more precise measurements in low-pressure scenarios increased, particularly in the fields of meteorology and vacuum technology.
Etymology: The term 'pico' is derived from the Spanish word for 'small', and in scientific terminology, it denotes a factor of 10^-12. Thus, 'picopascal' directly translates to one trillionth of a pascal.
Current Use
Today, the picopascal is widely used in fields requiring precise measurements of low pressure, such as in vacuum technology, meteorology, and aerospace. Instruments capable of measuring pressures in picopascals are essential for experiments in high-energy physics and for monitoring environmental conditions at altitudes where atmospheric pressure is extremely low.
💡 Fun Facts
- •The picopascal is so small that it can measure pressures in conditions such as space, where traditional units would be impractical.
- •One picopascal is equivalent to 0.000000000001 pascals, showcasing the extreme precision required in specific scientific applications.
- •The concept of picopascal is not only used in physics but also in geosciences for measuring low ground pressure variations.
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