How did WTC 7 Collapse? | The Complete Physics https://www.youtube.com/watch?v=KMvCWFCoVN4 视频讨论了2001年9月11日晚上,在世贸中心双塔倒塌后,附近的WTC 7号楼神秘倒塌的原因。视频指出,在主要倒塌发生之前,WTC 7的顶层出现了一个明显的V形凹陷,这是由于建筑的三根主要柱子倒塌造成的。WTC 7采用了...
So you can see that the two factors which slowed the fall of the WTC towers were both very small. The strength of the structure below the point of collapse could be expected to slow the rate of collapse by less than 1%, and the accumulation of additional mass by the falling part of ...
How did WTC 7 Collapse? | The Complete Physics https://www.youtube.com/watch?v=KMvCWFCoVN4 视频讨论了2001年9月11日晚上,在世贸中心双塔倒塌后,附近的WTC 7号楼神秘倒塌的原因。视频指出,在主要倒塌发生之前,WTC 7的顶层出现了一个明显的V形凹陷,这是由于建筑的三根主要柱子倒塌造成的。WTC 7采用了...