How many megapascals is a Qian Qian?

Kilopascal pressure unit, expressed as: kPa English: kPa 1 kPa = 1000 Pa A standard atmospheric pressure = 10 1.325 kPa Other pressure unit conversion methods: 1 bar 100 000 Pa.

1 mbar

1 atmospheric pressure101325pa

1 mmhg (mmhg)

1 inch Hg 3386.38 Pa

1 m water column 9800 pa

In the international system of units, the unit of pressure is N/m2, and the pronunciation is Newton per square meter. It has a special name called Pascal, which is represented by the symbol Pa. 1 kPa = 1000 Pa, symbol 1KPa= 1000Pa About Pascal: Blaise Pascal (blaise pascal 1623- 1662), a famous French mathematician and physicist. The main contribution is the discovery of Pascal's law in physics, and the pressure unit is named after it.

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Megapascal, the unit of pressure, is called megapascal. 1 MPa = 1000000 MPa. Pascal died in August of 1662 at the age of 39. Later generations named the pressure unit "Pa" after Pascal.

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Basic introduction

character introduction

pascal's theorem

research field

Research contribution

Personality achievement

pascal

[Edit this paragraph] Basic introduction

Pa is the unit of pressure, 1Pa is 1N/m 2, and 1Pa is 1N. It is conceivable that the pressure generated by the uniform pressure on the area of1m 2. 1Pa is a very small pressure. For example, 1MPa, 1atm, 1mmHg. 1MPa is 1 ten thousand times that of 1Pa, that is, 1 MPa = 10 6 Pa, or if you like, it can be written as 1 MPa = 100000 Pa. Note that here 1mpa = 1mpa instead of 1mpa.

[Edit this paragraph] Character introduction

Pascal (Pa for short) is the unit of pressure and the name of a scientist. Pascal is a famous French mathematician, physicist, philosopher and essayist. Pascal Blaise, French mathematician, physicist and founder of modern probability theory. He put forward a law about liquid pressure, which was later called Pascal's law. The principle of intuitionism he established had an influence on some later philosophers, such as Rousseau and Bergson. 1623 June 19 was born in clermont-ferrand, Dom. Pascal had no formal school education. His mother died when he was four years old, and his father and two sisters, who were highly educated and served as government officials, were responsible for his education and training. His father is a respected mathematician. Under his careful education, Pascal was proficient in Euclidean geometry at an early age. He independently discovered the first 32 theorems of Euclid, and the order was completely correct. 12 years old, he found that "the sum of the angles in the triangle is equal to 180 degrees" and began to learn mathematics from his father. Pascal moved to Paris with his family in 163 1. Father found Pascal promising. At the age of 65,438+06, he took him to attend the academic activities of the group of mathematicians and physicists in Paris (the predecessor of the French Academy of Sciences in Paris) with love, which opened his eyes. At the age of 65,438+07, Pascal wrote the article "The Theory of Cone Section" with a high level of mathematics, which was the result of his study of De Salgues's classic works on integral projective geometry. Pascal moved to Rouen with his family in 164 1. From 1642 to 1644, Pascal invented the adder, which is the earliest calculator in the world and is now on display in the French Museum. From 16 10, he accepted religious teachings, but he still devoted himself to scientific experiments. Starting from 1653, Pascal devoted himself to the study of vacuum and hydrostatics and achieved a series of important results. 1647 returned to Paris to live. According to Torricelli's theory, he did a lot of experiments, and the experiment in 1647 caused a sensation in Paris. He himself said that the fundamental guiding ideology of his experiment is to oppose the traditional concept that "nature hates vacuum". From 1647 to 1648, he published papers on vacuum. 1648, Pascal conceived and carried out the experiment of measuring atmospheric pressure at different heights in the same area, and found that atmospheric pressure increased with the decrease of height. In recent years, Pascal made new discoveries in his experiments and made many important inventions, such as the invention of syringe and hydraulic press, and the improvement of Torricelli mercury barometer. From 1649 to 165 1, Pascal and his collaborator Pierre measured the changes of atmospheric pressure in detail at the same place, and became pioneers in weather forecasting with barometer. 165 1 year, Pascal began to summarize his experimental results. 1654, he wrote a paper on liquid balance and air weight, which was officially published in 1663. Pascal then turned to theological research, and 1655 entered Petraeus' theological center. Starting from skepticism, he thinks that perceptual and rational knowledge are unreliable, and thus draws the conclusion that faith is above everything else. Pascal family believed in Catholicism before 1646. Because of his father's illness, he came into contact with deeper religious beliefs, which had a great influence on his later life. Pascal corresponded with mathematician Fermat. Together, they solved the problem sent by an upper-class gambler and amateur philosopher. He can't figure out why he always loses money when there is some combination of three dice. In the process of solving this problem, they laid the foundation of modern probability theory. He made many contributions in his short life, especially in mathematics and physics. 1646, in order to test the theories of Italian physicists Galileo and Torricelli, he made a mercury barometer and repeated atmospheric pressure experiments on the top of clermont-ferrand overlooking Paris, paving the way for the study of fluid dynamics and hydrostatics. In the experiment, in order to improve Torricelli's pneumatic juice, he invented a syringe and a hydraulic press on the basis of Pascal's law. His research and work in vacuum further enhanced his reputation. He was weak from childhood and was plagued by illness because of overwork. However, it was during 165 1 ~ 1654 that he worked intensively in science and wrote many papers on liquid balance, air weight and density, and arithmetic triangle, and the latter paper became the basis of probability theory. During the period of 1655~ 1659, he also wrote many religious works. In his later years, he was suggested to publish the research results on wheel lines, so he was immersed in scientific interest again. However, since February of 1659, his illness has worsened, and he can't work normally, nor can he be satisfied with his pious religious life. Finally, he died in great pain. Pascal died in August of 1662 at the age of 39. Later generations named the pressure unit "Pa" after Pascal. Pascal left a famous saying to the world in his philosophical masterpiece Thought: "Man is just a reed, the most fragile thing in nature." But he is a thinking reed. The scientific community remembers Pascal's achievements. The international system of units stipulates that Pascal is the unit of "pressure" because he first put forward Pascal's law or Pascal's principle and described the essence of liquid pressure. Pascal's contribution will not be forgotten in the computer field. Pascal published by 197 1 is also to commemorate this pioneer and keep Pascal's name in the computer age.

[Edit this paragraph] Pascal Theorem

The following is a concrete introduction: Pascal's achievements are manifold. His contribution to mathematics and physics occupies an extremely important position in the history of science. Pascal has a deep knowledge of mathematics. In addition to his outstanding contribution to probability theory, the most prominent is the famous Pascal theorem, which he put forward in his paper on conic curves. Pascal's theorem is an important theorem in projective geometry, that is, "a conic curve inscribed with the intersection of three opposite sides of a hexagon". In the study of algebra, he published many papers about arithmetic progression and binomial coefficients, and discovered the coefficient law of binomial expansion, the famous Pascal triangle. (China called it "Yang Hui Triangle"), he and Fermat established the basis of probability theory and combinatorial theory, and obtained a series of solutions to probability theory problems. He studied the cycloid problem and obtained the general solutions of different curve areas and centers of gravity. He calculated the integrals of trigonometric functions and tangents, and introduced elliptic integrals for the first time.

[Edit this paragraph] Research field

Pascal's achievements are manifold. His contribution to mathematics and physics occupies an extremely important position in the history of science. Pascal has a deep knowledge of mathematics. In addition to his outstanding contribution to probability theory, the most prominent one is Pascal's theorem put forward in his paper on conic curves. Pascal's theorem is an important theorem in projective geometry, that is, "a conic curve inscribed with the intersection of three opposite sides of a hexagon". In the study of algebra, he published many papers about arithmetic progression and binomial coefficients, and discovered the coefficient law of binomial expansion, the famous Pascal triangle. (China called it "Yang Hui Triangle"), he and Fermat established the basis of probability theory and combinatorial theory, and obtained a series of solutions to probability theory problems. He studied the cycloid problem and obtained the general solutions of different curve areas and centers of gravity. He calculated the integrals of trigonometric functions and tangents, and introduced elliptic integrals for the first time.

[Edit this paragraph] Research contribution

In 1 and 1639, he published an excellent mathematical paper on conic curve. 2. His philosophical masterpiece Record of Thought; Pascal discovered the law of atmospheric pressure changing with height. He not only repeated Torricelli's experiment, but also verified his own inference: since atmospheric pressure is produced by the weight of air, the higher the altitude, the shorter the liquid column in the glass tube should be; 4. Letters to outsiders; 5. 164 1 year, Pascal invented the adder; 6. Paper on conic curve; 7. It is found that Pascal's law (in fluid (gas or liquid) mechanics, it means that the pressure change of a certain part of the static fluid in a closed container will be transmitted to all parts of the fluid and the wall of the container without loss, which is equal to the acting force divided by the acting area. According to Pascal's principle, if a certain pressure is exerted on one piston in the hydraulic system, the same pressure increase will be produced on the other piston. If the area of the second piston is 10 times that of the first piston, the force acting on the second piston will increase to 10 times that of the first piston, while the pressures on the two pistons are still equal. The hydraulic press is an example of Pascal's principle. It has many uses, such as hydraulic braking. 8. Pascal also found that the pressure at any point in a static fluid is equal in all directions, that is, the pressure at that point is equal in all planes passing through it, which is also called Pascal's principle (law); There is a joke in the episode of Einstein, Newton and Pascal: after death, scientists all went to heaven. One day, scientists were playing hide-and-seek, and it was Einstein's turn to arrest people. After counting 100, he found Newton standing beside him and said, "Newton, I got you." "No, you didn't catch Newton." "Then who are you?" Einstein asked. "What do you see under my feet?" Newton smiled slyly. Einstein saw that Newton's foot was a square plate with a side of one meter. "I am standing on a square meter board, and the board is Newton/square meter, so you are not catching Newton, but Pascal." Einstein called Pascal when he heard about it. Pascal smiled, bent down to pick up the board at Newton's foot and said to Einstein, "I'm Pascal now, right?" Said and threw the board out. "There is no square meter. Now, I am Newton. "

[Edit this paragraph] Character achievements

Pascal's contributions include Pascal's theorem, Pascal's triangle and Pascal's law. He is also the founder of modern probability theory. Pascal's achievements are manifold. His contribution to mathematics and physics occupies an extremely important position in the history of science. Pascal has a deep knowledge of mathematics. In addition to his outstanding contribution to probability theory, the most prominent one is Pascal's theorem put forward in his paper on conic curves. Pascal's theorem is an important theorem in projective geometry, that is, "a conic curve inscribed with the intersection of three opposite sides of a hexagon". In the study of algebra, he published many papers about arithmetic progression and binomial coefficients, and discovered the coefficient law of binomial expansion, namely Pascal Triangle. (China called it "Yang Hui Triangle"), together with Fermat, he established the foundation of probability theory and combinatorial theory, and obtained a series of methods to solve the problems of probability theory. He studied the cycloid problem and obtained the general solutions of different curve areas and centers of gravity. He calculated the integrals of trigonometric functions and tangents, and introduced elliptic integrals for the first time. In philosophy, he wrote the famous philosophical work Record of Thought, which established the principle of intuition and influenced some later philosophers, such as Jean-Jacob Rousseau and henri bergson. Pascal also invented the adder, and Pascal's contribution will not be forgotten in the computer field. The Pascal language published by 197 1 is also to commemorate this pioneer and keep Pascal's reputation in the computer age. Pascal's main contribution is still in physics. He discovered Pascal's law, that is, the pressure change of a certain part of the static fluid in a closed container will be transmitted to all parts of the fluid and the wall of the container without loss. Pressure is equal to the acting force divided by the acting area. According to Pascal's principle, if a certain pressure is exerted on one piston in the hydraulic system, the same pressure increase will be produced on the other piston. If the area of the second piston is 10 times that of the first piston, the force acting on the second piston will increase to 10 times that of the first piston, while the pressures on the two pistons are still equal. The hydraulic press is an example of Pascal's principle. It has many uses, such as hydraulic braking. Pascal wrote a famous saying in his philosophical masterpiece Record of Thought: "Man is just a reed, the most fragile thing in nature, but he is a thinking reed." The Record of Thoughts is an outstanding expression of genius's logical thinking in the form of daily language. Some daily problems, expressed in logical form, are so profound and philosophical. For example, he said, "Which is more difficult, bringing a person out of nothingness or bringing a person back from nothingness?"