4 ideas
13160 | To exist and be understood, a multitude must first be reduced to a unity [Leibniz] |
13161 | Substances are everywhere in matter, like points in a line [Leibniz] |
15710 | Bohr explained the periodic table and chemical properties of elements, using the quantum atom [Kumar] |
5470 | The idea of laws of nature arose in the Middle Ages [Hall,AR, by Ellis] |