本帖最後由 bchew 於 2012-6-20 07:53 AM 編輯
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Mushroom Cloudstvb now,tvbnow,bttvb/ h$ i5 \- R+ q. z
A mushroom cloud is a distinctive mushroom-shaped cloud of smoke, condensed water vapor, or debris resulting from a very large explosion. They are most commonly associated with nuclear explosions, but any sufficiently large blast will produce the same sort of effect.tvb now,tvbnow,bttvb0 o2 u5 m# T3 l1 P' \ Z! @9 j4 I
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Volcano eruptions and impact events can produce natural mushroom clouds.
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) E0 {' m3 m5 s5 Otvb now,tvbnow,bttvbTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。& W# W# {& x; [8 J. o( H) t5 R* L& N
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Mushroom cloud storm as a result of the sudden formation of a large mass of hot low-density gases near the ground creating a Rayleigh-Taylor instability. The mass of gas rises rapidly, resulting in turbulent vortices curling downward around its edges and drawing up a column of additional smoke and debris in the center to form its “stem”. The mass of gas eventually reaches an altitude where it is no longer less dense than the surrounding air and disperses, the debris drawn upward from the ground scattering and drifting back down.# g, E* A! y% m& r4 \* O
1 B6 D# d" F4 {" W5.39.217.76蘑菇云层 蘑菇云层具有独特的蘑菇形势，由大爆炸产生的烟雾，凝结水蒸气以及各种碎片组成。蘑菇云层往往都与核爆炸相关，生活大爆炸第三季。但如果有足够大的威力的话，其实任何稍次等级的爆炸也会产生相同效果。火山爆发以及撞击事宜发生时也能天然酿成蘑菇云层。 |
發表於 2012-6-19 09:56 PM
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發表於 2012-6-20 06:10 AM
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發表於 2012-6-20 07:26 AM
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TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。. N1 g( n0 L. F! X
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