because this is seen to remain,Dame Moncler Tatie, so in the case of our present subject. This place,Canada Goose Tilbehør Norge Salg, we say,Belstaff Nowy Albatross Kurtki, is the place of water. Hence all rivers and all the water that is generated flow into it: for water flows into the deepest place,Buty Nike Lebron 12, and the deepest part of the earth is filled by the sea. Only all the light and sweet part of it is quickly carried off by the sun,Parka Blizzard Kurtka, while herest remains for the reason we have explained. It is quite natural that some people should have been puzzled by the old question why such a mass of water leaves no trace anywhere (for the sea does not increase though innumerable and vast rivers are flowing into it every day.) But if one considers the matter the solution is easy. The same amount of water does not take as long to dry up when it is spread out as when it is gathered in a body, and indeed the difference is so great that in the one case it might persist the whole day long while in the other it might all disappear in a moment-as for instance if one were to spread out a cup of water over a large table. This is the case with the rivers: all the time they are flowing their water forms a compact mass, but when it arrives at a vast wide place it quickly and imperceptibly evaporates.
But the theory of the Phaedo about rivers and the sea is impossible. There it is said that the earth is pierced by intercommunicating channels and that the original head and source of all waters is what is called Tartarus-a mass of water about the centre, from which all waters,CG Dame Hybridge Lite Hoody, flowing and standing,Japon Pas Cher, are derived. This primary and original water is always surging to and fro,Maillot Coutinho Pas Cher, and so it causes the rivers to flow on this side of the earth’s centre and on that; for it has no fixed seat but is always oscillating about the centre. Its motion up and down is what fills rivers. Many of these form lakes in various places (our sea is an instance of one of these), but all of them come round again in a circle to the original source of their flow,Moncler Szal, many at the same point, but some at a point opposite to that from which they issued; for instance, if they started from the other side of the earth’s centre, they might return from this side of it. They descend only as far as the centre, for after that all motion is upwards. Water gets its tastes and colours from the kind of earth the rivers happened to flow through.
But on this theory rivers do not always flow in the same sense. For since they flow to the centre from which they issue forth they will not be flowing down any more than up, but in whatever direction the surging of Tartarus inclines to. But at this rate we shall get the proverbial rivers flowing upwards,Män Vests, which is impossible. Again,Chaussures Yeezy Boost 950 Unisex, where is the water that is generated and what goes up again as vapour to come from? For this must all of it simply be ignored, since the quantity of water is always the same and all the water that flows out from the original source flows back to it again. This itself is not true,Maillot Sterling Pas Cher, since all rivers are seen to end in the sea except where one flows into another. Not one of them ends in the earth, but even when
相关的主题文章:
http://www13.plala.or.jp/gakuki3/cgi_bin/aska/aska.cgi
http://markt.vaart.nl/cgi-bin/vaart/markt/classifieds.cgi
http://www13.plala.or.jp/white_roots/gwbbs/gwbbs.cgi |