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 Jalkapallokengät the windy exhalation, being warm, rises above the moister vapour, which is heavy and sinks below the other. Hence the world surrounding the earth 2018 Adidas Sneakers 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 fumid evaporation: but we must use this terminology since this element is the most 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 2018 Fendi Sneakers of fuel, so that a little motion often makes it burst into flame just as Moncler Takit Miehet smoke does: for flame is the ebullition Moncler Kengät of a dry exhalation. So whenever the circular motion stirs this stuff up in any way, it catches fire at the point at which it 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 Iceland Dame Fodboldtrøjer 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 Naisten Bayern Munchen Pelipaidat portions but continuously with the Miehet Northface Steep Tech Takki 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 Naiset Northface Softshell 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 it is like the flame from the lamp and sometimes bodies are projected by being squeezed out Moncler Naiset 2017 (like 2018 Fendi Sandals & Slides 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 downwards because the condensation which propels them inclines downwards. Thunderbolts fall downwards for the same reason: their origin is never combustion but ejection Cote d'lvoire Fodboldtrøjer 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. When it takes place at a lower level it is due to the ejection of the exhalation bylinks:
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