The Pascal, named after the French mathematician and physicist Blaise Pascal, is the SI unit of pressure. It is equivalent to one newton per square meter, symbolized as Pa. Despite its relatively recent introduction in 1971, the Pascal honors the pioneering work of Pascal in fluid mechanics and pressure, such as Pascal’s Law, which explains how pressure applied to a confined fluid is transmitted undiminished in all directions. Interestingly, a single Pascal is a tiny unit of pressure, roughly equal to the pressure exerted by a dollar bill resting flat on a table. This illustrates why everyday atmospheric pressure is typically measured in kilopascals (kPa), as one standard atmosphere is about 101.3 kPa.
The megapascal (MPa) is a unit of pressure that is often used in a variety of scientific and engineering calculations, especially in materials science. One fascinating aspect of the megapascal is how it bridges different disciplines, such as geology, where it helps measure the strength of rocks, and civil engineering, where it is crucial for understanding the stress in structures. Interestingly, 1 MPa is equivalent to the pressure exerted by a weight of about 10.2 metric tons on a single square meter, illustrating its significant impact compared to everyday pressures we encounter.
In the realm of meteorology, pressures measured in MPa can indicate catastrophic weather conditions, as atmospheric pressure is usually measured in hectorpascals due to its lower scale. Also noteworthy is the use of MPa in automotive engine performance, where it assesses combustion forces, underlying the importance of this unit in ensuring both vehicle efficiency and safety. Thus, the megapascal is vital across varied fields, reflecting the diverse applications of pressure measurement in modern technology and natural phenomena.
Pascals | Megapascals |
---|---|
0
Pa
|
0
MPa
|
1000
Pa
|
0.001
MPa
|
2000
Pa
|
0.002
MPa
|
3000
Pa
|
0.003
MPa
|
4000
Pa
|
0.004
MPa
|
5000
Pa
|
0.005
MPa
|
6000
Pa
|
0.006
MPa
|
7000
Pa
|
0.007
MPa
|
8000
Pa
|
0.008
MPa
|
9000
Pa
|
0.009
MPa
|
10000
Pa
|
0.01
MPa
|
11000
Pa
|
0.011
MPa
|
12000
Pa
|
0.012
MPa
|
13000
Pa
|
0.013
MPa
|
14000
Pa
|
0.014
MPa
|
15000
Pa
|
0.015
MPa
|
16000
Pa
|
0.016
MPa
|
17000
Pa
|
0.017
MPa
|
18000
Pa
|
0.018
MPa
|
19000
Pa
|
0.019
MPa
|
20000
Pa
|
0.02
MPa
|
21000
Pa
|
0.021
MPa
|
22000
Pa
|
0.022
MPa
|
23000
Pa
|
0.023
MPa
|
24000
Pa
|
0.024
MPa
|
25000
Pa
|
0.025
MPa
|
26000
Pa
|
0.026
MPa
|
27000
Pa
|
0.027
MPa
|
28000
Pa
|
0.028
MPa
|
29000
Pa
|
0.029
MPa
|
30000
Pa
|
0.03
MPa
|
31000
Pa
|
0.031
MPa
|
32000
Pa
|
0.032
MPa
|
33000
Pa
|
0.033
MPa
|
34000
Pa
|
0.034
MPa
|
35000
Pa
|
0.035
MPa
|
36000
Pa
|
0.036
MPa
|
37000
Pa
|
0.037
MPa
|
38000
Pa
|
0.038
MPa
|
39000
Pa
|
0.039
MPa
|
40000
Pa
|
0.04
MPa
|
41000
Pa
|
0.041
MPa
|
42000
Pa
|
0.042
MPa
|
43000
Pa
|
0.043
MPa
|
44000
Pa
|
0.044
MPa
|
45000
Pa
|
0.045
MPa
|
46000
Pa
|
0.046
MPa
|
47000
Pa
|
0.047
MPa
|
48000
Pa
|
0.048
MPa
|
49000
Pa
|
0.049
MPa
|
50000
Pa
|
0.05
MPa
|
51000
Pa
|
0.051
MPa
|
52000
Pa
|
0.052
MPa
|
53000
Pa
|
0.053
MPa
|
54000
Pa
|
0.054
MPa
|
55000
Pa
|
0.055
MPa
|
56000
Pa
|
0.056
MPa
|
57000
Pa
|
0.057
MPa
|
58000
Pa
|
0.058
MPa
|
59000
Pa
|
0.059
MPa
|
60000
Pa
|
0.06
MPa
|
61000
Pa
|
0.061
MPa
|
62000
Pa
|
0.062
MPa
|
63000
Pa
|
0.063
MPa
|
64000
Pa
|
0.064
MPa
|
65000
Pa
|
0.065
MPa
|
66000
Pa
|
0.066
MPa
|
67000
Pa
|
0.067
MPa
|
68000
Pa
|
0.068
MPa
|
69000
Pa
|
0.069
MPa
|
70000
Pa
|
0.07
MPa
|
71000
Pa
|
0.071
MPa
|
72000
Pa
|
0.072
MPa
|
73000
Pa
|
0.073
MPa
|
74000
Pa
|
0.074
MPa
|
75000
Pa
|
0.075
MPa
|
76000
Pa
|
0.076
MPa
|
77000
Pa
|
0.077
MPa
|
78000
Pa
|
0.078
MPa
|
79000
Pa
|
0.079
MPa
|
80000
Pa
|
0.08
MPa
|
81000
Pa
|
0.081
MPa
|
82000
Pa
|
0.082
MPa
|
83000
Pa
|
0.083
MPa
|
84000
Pa
|
0.084
MPa
|
85000
Pa
|
0.085
MPa
|
86000
Pa
|
0.086
MPa
|
87000
Pa
|
0.087
MPa
|
88000
Pa
|
0.088
MPa
|
89000
Pa
|
0.089
MPa
|
90000
Pa
|
0.09
MPa
|
91000
Pa
|
0.091
MPa
|
92000
Pa
|
0.092
MPa
|
93000
Pa
|
0.093
MPa
|
94000
Pa
|
0.094
MPa
|
95000
Pa
|
0.095
MPa
|
96000
Pa
|
0.096
MPa
|
97000
Pa
|
0.097
MPa
|
98000
Pa
|
0.098
MPa
|
99000
Pa
|
0.099
MPa
|
100000
Pa
|
0.1
MPa
|
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