【Digging to the Bottom】Let’s start with the concept of stress. Hurry up and take turns; those downstairs, please listen to the questions.
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This post was last edited by *nht1 on 2016-4-20 at 23:10. It invites you @654262293 @leo_0088 @XinruiHuaGong @li*nji @zhjnavy015 @1111111 @fcxh1111 @szwbuaa @geddddd to participate in 【Delving Deep】 – I pose the questions and you take it in turn; please read the questions below: 【Rules】: 1. The questions posed by those below must be related to the question posed above. 2. If the answer below needs further supplementation or you have a better answer, you can leave a comment directly on that thread; there is no need to reply on a new thread. The concept of pressure: The force acting per unit area vertically on the interface between a fluid and a solid. Ask downstairs: How is standard atmospheric pressure defined?
The vacuum gauge reads 0.1 kilograms, because that is the value of atmospheric pressure; all the air has been removed to the extreme limit