利恩说，结在分子世界中也一样很有帮助，像更强韧的编织聚合物——也许是更好的高强度合成纤维聚合物。
And Leigh says knots could be just as helpful in the molecular world — like for stronger braided polymers — maybe a better Kevlar.
“科学家们经常用图片来解释自己的想法，但现在我们正在探索分子世界，并且能够利用动画去表达和展示其中的玄机，”贝里说。
"Scientists have always done pictures to explain their ideas, but now we're discovering the molecular world and able to express and show what it's like down there," Mr. Berry said.
这些信件26年间写完，当时克里克非正式地指点世界分子生物学家建立DNA在活性细胞里的运行模式。
The letters were written during a 26-year period when Crick informally guided the progress of molecular biologists around the world in establishing how DNA operates in living cells.
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