There are different size of Marbles --- Hahaha

kingoftheworld · 2018-03-31 16:12:18Z

There are different size of Marbles --- Hahaha简介

来源: kingoftheworld 于 2018-03-31 16:12:18 [档案] [博客] [旧帖] [给我悄悄话] 阅读数 : (2692 bytes)

回答: 非常有意思看到美国空军公布的F22和F35隐身参数由 kingoftheworld 于 2018-03-31 16:11:10

There are different size of Marbles.................

http://glassmarbles.com/size.htm

The range of the diameter for glassy marbles is from 12mm to 42mm, and according to the formula, the range of cross resection area for glassy marbles could be from 0.0001m2 to 0.0014m2..........

As for the marbles with the most common size (14.4mm and 16mm in diameter), their cross resection area shall be 0.00016m2 and 0.0002m2.....

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• 真希望原跟帖也这么科学精神一把，而不是为黑而黑一一谢认真一一谢谢一一， -青松站- ♀ (0 bytes) () 03/31/2018 postreply 16:34:20

• F-35相当于Golf Ball。直径42.67mm，横截面积0.0014平方米。 -TBz- ♂ (0 bytes) () 04/01/2018 postreply 00:19:33

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