道尔顿的见解很简单：在一切物质的基部，都是极其微小而又不可还原的粒子。虽然原子微粒的概念，在希腊就有研究，但是道尔顿原子量的概念还是为化学和现代科学的发展起到了奠基的作用~~~~
❤《万物简史》推出部落节目版，戳这里订阅:http://bulo.hujiang.com/menu/6004/

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annihilate
hydrogen
Dalton
There, in a short chapter of just five pages (out of the book's more than 900), people of learning first [-1-] atoms in something approaching their modern conception. Dalton's simple insight was that at the root of all matter are exceedingly tiny, irreducible particles. "[---2---]," he wrote.
Neither the idea of atoms nor the term itself was exactly new. Both had been developed by the ancient Greeks. [---3---] He knew, for instance, that hydrogen was the lightest element, so he gave it an atomic weight of one. [---4---] By such means was he able to arrive at the relative weights of the known elements. [---5---]—oxygen's atomic weight is actually 16, not seven—[---6---]
encountered We might as well attempt to introduce a new planet into the solar system or annihilate one already in existence, as to create or destroy a particle of hydrogen Dalton's contribution was to consider the relative sizes and characters of these atoms and how they fit together. He believed also that water consisted of seven parts of oxygen to one of hydrogen, and so he gave oxygen an atomic weight of seven. He wasn't always terribly accurate but the principle was sound and formed the basis for all of modern chemistry and much of the rest of modern science.
在该书只有5页的短短的一章里（该书共有900多页），学术界人士第一次接触到了近乎现代概念的原子。道尔顿的见解很简单：在一切物质的基部，都是极其微小而又不可还原的粒子。"创造或毁灭一个氢粒子，也许就像向太阳系引进一颗新的行星或毁灭一颗业已存在的行星那样不可能。"他写道。 　　无论是原子的概念，还是"原子"这个词本身，都称不上是新鲜事。二者都是古希腊人发明的。道尔顿的贡献在于，他考虑了这些原子的相对大小和性质，以及它们的结合方法。例如，他知道氢是最轻的元素，因此他给出的原子量是1。他还认为水由七份氧和一份氢组成，因此他给氧的原子量是7。通过这种办法，他就能得出已知元素的相对重量。他并不总是十分准确--氧的原子量实际上是16，不是7，但这个原理是很合理的，成了整个现代化学以及许多其他科学的基础。