g down. Something analogous to this happens on the sea-shore. When the sea breaks in great waves the marks left on the sand are very thick and crooked,Nike KD 8 Męskie, but when the sea is calm they are slight and straight (because the secretion is small). As the sea is to the shore so the wind is to the cloudy air; so, when the wind drops,Chaussures Air Jordan 6 Retro Homme, this very straight and thin cloud is left,Chaussures New Balance 890, a sort of wave-mark in the air.
An earthquake sometimes coincides with an eclipse of the moon for the same reason. When the earth is on the point of being interposed,Chaussures Stan Smith Unisex, but the light and heat of the sun has not quite vanished from the air but is dying away, the wind which causes the earthquake before the eclipse, turns off into the earth,arctic parka, and calm ensues. For there often are winds before eclipses: at nightfall if the eclipse is at midnight, and at midnight if the eclipse is at dawn. They are caused by the lessening of the warmth from the moon when its sphere approaches the point at which the eclipse is going to take place. So the influence which restrained and quieted the air weakens and the air moves again and a wind rises, and does so later, the later the eclipse.
A severe earthquake does not stop at once or after a single shock,Barn Moncler Vest Norge Salg, but first the shocks go on, often for about forty days; after that,PJS Dameklær Adirondack Strøk Norge Salg, for one or even two years it gives premonitory indications in the same place. The severity of the earthquake is determined by the quantity of wind and the shape of the passages through which it flows. Where it is beaten back and cannot easily find its way out the shocks are most violent, and there it must remain in a cramped space like water that cannot escape. Any throbbing in the body does not cease suddenly or quickly,Mężczyźni Barbour Waterproof Kurtka, but by degrees according as the affection passes off. So here the agency which created the evaporation and gave it an impulse to motion clearly does not at once exhaust the whole of the material from which it forms the wind which we call an earthquake. So until the rest of this is exhausted the shocks must continue,Hertha Berlin Pas Cher, though more gently, and they must go on until there is too little of the evaporation left to have any perceptible effect on the earth at all.
Subterranean noises, too, are due to the wind; sometimes they portend earthquakes but sometimes they have been heard without any earthquake following. Just as the air gives off various sounds when it is struck,Chaussures New Balance 998, so it does when it strikes other things; for striking involves being struck and so the two cases are the same. The sound precedes the shock because sound is thinner and passes through things more readily than wind. But when the wind is too weak by reason of thinness to cause an earthquake the absence of a shock is due to its filtering through readily, though by striking hard and hollow masses of different shapes it makes various noises, so that the earth sometimes seems to ‘bellow’ as the portentmongers say.
Water has been known to burst out during an earthquake,Chaussures Nike Air Max TN Fusion. But that does not make water the cause of the earthquake,PJS Herreklær Kubuk Vest Norge Salg. The wind is the efficient cause whether it drives the water
相关的主题文章：
http://cgi.tako.ne.jp/~friends/bbs3/light.cgi?res=7180
http://markt.vaart.nl/cgi-bin/vaart/markt/classifieds.cgi
http://www.rockclimbing.com/cgi-bin/gear/search.cgi |
