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itions under which the rainbow appears,Michael Kors Väskor Sverige Online. So it is clear that the rainbow is a reflection of sight to the sun,Mulberry Tassen.So the rainbow always appears opposite the sun whereas the halo is round it. They are both reflections,Moncler Sklep, but the rainbow is distinguished by the variety of its colours. The reflection in the one case is from water which is dark and from a distance; in the other from air which is nearer and lighter in colour. White light through a dark medium or on a dark surface (it makes no difference) looks red. We know how red the flame of green wood is: this is because so much smoke is mixed with the bright white firelight: so,Celine Veske, too,foakleys.com, the sun appears red through smoke and mist. That is why in the rainbow reflection the outer circumference is red (the reflection being from small particles of water),Mackage Womens outlet jackets, but not in the case of the halo. The other colours shall be explained later. Again,mackage outlet, a condensation of this kind cannot persist in the neighbourhood of the sun: it must either turn to rain or be dissolved,Billiga Michael Kors, but opposite to the sun there is an interval during which the water is formed. If there were not this distinction haloes would be coloured like the rainbow. Actually no complete or circular halo presents this colour,Gucci Tassen, only small and fragmentary appearances called ‘rods’. But if a haze due to water or any other dark substance formed there we should have had,Canada Goose Jacka, as we maintain,Doudoune G-Star homme, a complete rainbow like that which we do find lamps. A rainbow appears round these in winter,hermes Tassen, generally with southerly winds. Persons whose eyes are moist see it most clearly because their sight is weak and easily reflected. It is due to the moistness of the air and the soot which the flame gives off and which mixes with the air and makes it a mirror,Moncler Sklep online, and to the blackness which that mirror derives from the smoky nature of the soot. The light of the lamp appears as a circle which is not white but purple. It shows the colours of the rainbow; but because the sight that is reflected is too weak and the mirror too dark,Canada Goose Herr, red is absent. The rainbow that is seen when oars are raised out of the sea involves the same relative positions as that in the sky,http://www.mackageoutletjacket.ca/, but its colour is more like that round the lamps,Kurtki Canada Goose, being purple rather than red. The reflection is from very small particles continuous with one another,sac longchamp pas cher, and in this case the particles are fully formed water. We get a rainbow,Moncler Jackor, too,Mulberry Veske, if a man sprinkles fine drops in a room turned to the sun so that the sun is shining in part of the room and throwing a shadow in the rest. Then if one man sprinkles in the room,Giubbotti Peuterey Donna, another,longchamp pas cher, standing outside,http://measurement.pl/strona/kurtkimoncler.php, sees a rainbow where the sun’s rays cease and make the shadow. Its nature and colour is like that from the oars and its cause is the same,Kurtki Parajumpers, for the sprinkling hand corresponds to the oar.
That the colours of the rainbow are those we described and how the other colours come to appear in it will be clear from the following considerations. We must recognize,Giubbotti Peuterey Uomo, as we have said,Kurtki Woolrich, and lay down: first,sac longchamp, that white colour on a black surface or seen through a black medium gives red; second,Doudoune Columbia Femme, that sig
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