n them, for if it is the mirror will be sensibly divisible since divisibility is involved in the notion of figure. But since something must be reflected in them and figure cannot be, it remains that colour alone should be Sergio Ramos Trikot reflected. The colour of a bright object sometimes appears bright in the reflection, but it sometimes, either owing to the admixture of the colour of the mirror or to weakness of sight, gives rise to the appearance of another colour.
However, we must accept the account we have given of these things in the theory of sensation, and take some things for Paris Saint Germain PSG Drakt Damer granted while we explain others.
3
Let us begin by explaining the shape of the halo; why it is a circle and why it appears round the sun or the moon or one of the other stars: the Paris Saint-Germain Trikot explanation being in all these cases the same.
Sight is reflected in this way when air and vapour are condensed into a cloud and the condensed matter is uniform and consists of small parts. Hence in itself it is a sign of rain, but if it fades away, of fine weather, Damskie Koszulka if it is broken up, of wind. For if it does not fade away and is not broken up but Island Drakt Barn is allowed to attain its normal state, it is naturally a sign of rain since it shows that a process of condensation is proceeding which must, Leonardo Bonucci Trikot when it is carried to an end, result in rain. For the same reason these haloes are the darkest. It is a sign of wind when it is broken up because its breaking up is due to a wind which exists there but has not reached us. This view finds support in BVB Borussia Dortmund Drakt Barn the fact that the wind blows from the quarter in which the main division appears in the halo. Its fading away is a sign of fine weather because if the air is not yet in a state to get the better of the heat it contains and proceed to condense into water, this shows that the moist vapour has not yet separated from the dry and firelike exhalation: and this is the cause of fine Marcelo Koszulka weather.
So much for the atmospheric conditions under which the reflection takes place. The reflection is from the mist that Everton Kinder forms round the sun or the moon, and that is why the halo is not seen opposite the sun like the rainbow.
Since the reflection takes place in the same way from every point the result is necessarily a circle or a segment of a circle: for if the lines start from the same point and end Gareth Bale Trikot at the same point and are equal, the points where they form an angle will always lie on a circle.
Let AGB and AZB and ADB Gareth Bale Drakt be lines each of which goes from the point A to the point B and forms an angle. Let the lines AG, AZ, AD be equal and those at B, GB, ZB, DB Iceland Trikot equal too. (See diagram.)
Draw the line AEB. Then the triangles are equal; for their base AEB is equal. Draw perpendiculars to AEB from the angles; GE from G, ZE from Z, DE from D. Then these perpendiculars are equal, being in equal triangles. And they are all in one plane, being all at right angles to AEB and meeting at a single point E. So if you draw the line it will be a circle and E its centre. Now B is the sun, A the eye, and the circumference passing through the points GZD the cloud from which the line oflinks:
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