来自《耶鲁大学开放课程：环境政治与法律 第1集 第1集》

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  If you thought about an aquarium
  想象一个鱼缸
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  and you fill that aquarium up,
  不管鱼缸的大小
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  regardless of its size, with softballs.
  你往鱼缸里放满垒球
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  And then you calculated the surface area of those softballs.
  接着计算这些垒球表面面积的大小
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  And then you took the softballs out
  然后你把垒球倒出来
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  and you filled the aquarium up with, say, peas.
  再放满 譬如说 豌豆
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  And you calculated the surface area of the peas,
  再计算所有这些豌豆的表面面积
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  being analogous to the finer particle size.
  好比是那些更细微的颗粒
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  You'd find a many-fold increase in the surface area of the peas
  你会发现豌豆的面积总和
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  than you would of the softballs.
  是垒球的好几倍
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  And because the carbon particles that are these core elements
  因为这些颗粒的核心成分是碳微粒
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  of particulates, because they're sticky,
  碳微粒黏性强