Science popularization: Master all concepts about stress in 5 minutes – a knowledge that will benefit you for life. . I’m lying to you; I’m a dog. . .
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Science popularization: Master all concepts about stress in 5 minutes – a knowledge that will benefit you for life. . I’m lying to you; I’m a dog. . . If anyone has anything that isn’t clear to them, please feel free to ask. . . Big brother welcomes you.
Answer: Atmospheric pressure refers to the absolute pressure generated by the weight of the surrounding atmosphere. When observing atmospheric pressure from the perspective of absolute pressure, it can be seen that the value of atmospheric pressure at any physical point in the Earth’s environment is not constant; it is always undergoing gentle fluctuations. On the ground, the daily fluctuation is usually around 200 Pa, while the annual fluctuation is around 3 kPa. Therefore, the time curve of atmospheric pressure is a wavy line, not a straight line.
Showing off one’s skills in front of an expert. Go show it off at the process plate and frame facility. It’s as if they’ve discovered a new continent just for not finishing middle school.