At last, one more — the fourth feature analytical the period of development of natural sciences consists that the Nature up to the middle of the XIX century was considered mainly invariable, ossified, out of evolution. How highly sciences in the XVII—XVIII centuries rose over antiquity physiophilosophy on volume and even on a of the got knowledge, so they conceded to it in sense of the general ideological view on the Nature.
Characteristic features of the unique comprehensive Universe have to be shown — and are shown! — in each its part. But it is especially accurate — when we deal not with some directly these more or less any — casual — terrestrial objects (very various), and with quite determined so fundamental structural elements of a matter at all possible consecutive main levels of its self-organization, starting with initial — — level.
On the first of them the general were created syncretic (, nedetalizirovanna of idea of the world as about something whole, there was a so-called physiophilosophy (Nature philosophy) which turned into a receptacle of the ideas and guesses which became to the XIII—XV rudiments of natural sciences.
The tendency to further continuous differentiation of sciences is the first and main feature of an stage of research of the Nature. This tendency remains and still very effective.
Running forward, i.e. preceding our further more statement, say, that it is possible to carry to the most impressive of such theories created by Albert Einstein (1879 — 195 for a continuous macrocosm so general theory of relativity and based on a quantum hypothesis of Max Planck (1858 — 194 and on the related quantum postulates of Niels Bohr (1885 — 196 theory of Verner Heisenberg (1901 — 197 for a discrete microcosm, and also necessary synthesis of these theories in a macro - microsymmetry of the Universe, already approved in modern cosmology.
Thus, all research of the Nature can be presented in the form of the huge network consisting of the branches and knots connecting numerous branches of physical, chemical and biological sciences visually today. So, it is asked that this such: the sum, a set somehow the coordinated sciences or actually already one uniform science — natural sciences?
Then, since the XV—XVI centuries, the analytical stage — a mental partition and allocation of particulars, to emergence and development of physics, chemistry and biology, and also a number of other, more private, natural sciences followed (along with long since the existing astronomy).