[Quora] 地球上最慢的东西是什么？

What is the slowest thing on earth?

地球上最慢的东西是什么？

原文地址：https://www.quora.com/What-is-the-slowest-thing-on-earth

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Victor Eijkhout：

Tar is a fluid, but it’s much more viscous than water. So people have started experiments to see it “drip”. Here’s the setup at Brisbane.
沥青是一种液体，但是比水更加具有黏性。所以人们开始进行试验来看看它是否会“滴”下来。下图就是在布鲁斯班的实验装置。

which was started in 1927, making it one of the longest running scientific experiments. Pitch drop experiment - Wikipedia
这个在 1927 年开始的试验成为了有史以来进行时间最长的科学试验。沥青滴漏实验- Wikipedia

Over the past 90 years nine drops have fallen:
在过去的 90 年间总共滴下了 9 滴：