Atmosphere Technical Converter
Convert Atmosphere Technical to Pascal and more • 57 conversions
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Unit Explanations
Atmosphere (Technical)atm
Source UnitThe technical atmosphere (atm) is a unit of pressure defined as being precisely equal to 101325 pascals (Pa). It is widely used in various scientific and engineering applications, particularly in fields such as meteorology, aviation, and chemistry. The atmosphere is a convenient measure of pressure that reflects the average atmospheric pressure at sea level. It is not an SI unit, but it is accepted for use with the SI system. The unit is commonly used in calculations involving gas laws, fluid dynamics, and other applications where pressure measurement is critical.
Current Use
The technical atmosphere is primarily used in fields such as meteorology, aviation, and engineering. It serves as a reference pressure in various calculations, such as those involving the behavior of gases under different conditions. It is also used in the calibration of pressure gauges and barometers, ensuring consistency in pressure measurements across different instruments and applications.
Fun Fact
The atmosphere is defined to be equivalent to 101325 pascals, but it can also be expressed in other units, such as mmHg and bar.
PascalPa
Target 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.
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= × 1.00000How to Convert
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Atmosphere (Technical)
pressure • Non-SI
Definition
The technical atmosphere (atm) is a unit of pressure defined as being precisely equal to 101325 pascals (Pa). It is widely used in various scientific and engineering applications, particularly in fields such as meteorology, aviation, and chemistry. The atmosphere is a convenient measure of pressure that reflects the average atmospheric pressure at sea level. It is not an SI unit, but it is accepted for use with the SI system. The unit is commonly used in calculations involving gas laws, fluid dynamics, and other applications where pressure measurement is critical.
History & Origin
The concept of atmospheric pressure dates back to the work of scientists like Evangelista Torricelli in the 17th century, who demonstrated that air has weight. The atmosphere was first defined as a unit of pressure in the 19th century as scientists needed a consistent way to measure atmospheric pressure for various scientific applications.
Etymology: The term 'atmosphere' is derived from the Greek words 'atmos' meaning vapor and 'sphaira' meaning sphere, thus referring to the vaporous envelope surrounding the Earth.
Current Use
The technical atmosphere is primarily used in fields such as meteorology, aviation, and engineering. It serves as a reference pressure in various calculations, such as those involving the behavior of gases under different conditions. It is also used in the calibration of pressure gauges and barometers, ensuring consistency in pressure measurements across different instruments and applications.
💡 Fun Facts
- •The atmosphere is defined to be equivalent to 101325 pascals, but it can also be expressed in other units, such as mmHg and bar.
- •The average atmospheric pressure at sea level is equivalent to the weight of a column of mercury 760 mm high.
- •The term 'standard atmosphere' is sometimes used to refer to the technical atmosphere, helping to standardize pressure measurements across various scientific disciplines.
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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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