And that's all that's big enough to pass through or small enough to pass through. And if we go up even just one row on the periodic table to potassium, what we actually see is now that it's going to be too large, and, in fact, a potassium solvated with one water molecule won't go through our channel.

就是这样刚好大到它通过,或者说刚好小到它通过,即使我们再沿着周期表往下走仅仅一行到钾离子，我们看到的就将是它的个头太大了，实际上，溶解于一个水分子的单个钾离子,不能穿过我们的通道。

麻省理工公开课 - 化学原理课程节选

A casino does not have a risk that the law of large numbers will be repealed and a roulette table will be a long-term losing proposition or a craps table will be a long-term losing proposition.

一个赌场不会有,大数定理被替代,或者轮盘赌和,双骰赌博会是长期亏本买卖的风险。

耶鲁公开课 - 金融市场课程节选