一次看懂化學元素的表示法

知名的物理學家費曼 (Richard Feynman 1918–1988) 曾被問到：「如果有一天人類面臨大災難，所有已知的科學都被破壞殆盡，如何只用一句話能夠包含最多的資訊給下一代的"生物"【1】？」

I (Feynman) believe it is the atomic hypothesis that all things are made of atoms — little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another.In that one sentence, you will see, there is an enormous amount of information about the world, if just a little imagination and thinking are applied. 【2】