which rises from the moisture contained in the earth and on its surface is vapour, while that rising from the earth itself, which is dry, is like smoke. Of these the windy exhalation, England Kinder being warm, rises above the moister vapour, which is heavy and sinks Portugal Trikot below the other. Hence the world surrounding the earth is ordered as follows. First below the circular motion comes the warm and dry element, which we call fire, for there is no word fully adequate to every state of the Angel di Maria Trikot fumid evaporation: but we must use Koszulka New York Red Bulls this terminology since this element is the most Bayer Leverkusen Trikot inflammable of all bodies. Below this comes air. We must think of what we just called fire as being spread round the terrestrial sphere on the outside like a kind of fuel, so that a little motion often makes it burst into flame just as smoke does: for flame is the ebullition of a dry exhalation. So whenever the circular motion stirs this stuff up in any way, Olympique De Marseille Drakt it catches fire at the point at which it Benfica Koszulka is most inflammable. The result differs according to the disposition and quantity of the combustible material. If this is broad and long, we often see a flame burning as in a field of stubble: if it burns lengthwise only, we see what are called ‘torches’ and ‘goats’ and shooting-stars. Now when the inflammable material is longer than it is broad sometimes it seems to throw off sparks as it burns. (This happens because matter catches fire at the sides in small portions but continuously with the main body.) Then it is called a ‘goat’. When this does not happen it is a ‘torch’. But if the whole length of the exhalation is scattered in small parts and in many directions and in breadth and depth alike, we get what are called shooting-stars.
The cause of these shooting-stars is sometimes the motion which ignites the exhalation. At other times the air is condensed by cold and squeezes out and ejects the hot element; making their motion look more like that of a thing thrown than like a running fire. For the question might be raised whether the ‘shooting’ of a ‘star’ is the same thing as when you put an exhalation below a lamp and it lights the lower lamp from the flame above. For here too the flame passes wonderfully quickly and looks like a thing thrown, and not as if one thing after another caught fire. Or is a ‘star’ when it ‘shoots’ a single body that is thrown? Apparently both cases occur: sometimes Juventus Kinder it is like the flame from the lamp and sometimes bodies are projected by being squeezed out (like fruit stones from one’s fingers) and so are seen to fall into the sea and on the dry land, both by night and by day when the sky is clear. They are thrown Ajax Trikot downwards Atletico Madrid Drakt Barn because the condensation which propels them inclines downwards. Thunderbolts fall downwards for the same reason: their origin is never combustion but ejection under pressure, since naturally all heat tends upwards.
When the phenomenon is formed in the upper region it is due to the combustion of the exhalation. West Ham United Drakt When it takes place at a lower level it is due to the ejection of Survêtements the exhalation bylinks:
http://www.ticovision.com/cgi-bin/index.cgi
http://www.myip.cn/cgimage.lv
http://www13.plala.or.jp/gakuki3/cgi_bin/aska/aska.cgi |
