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It is based on the fact discovered by Sir David Brewster, that the light of the sky is polarised in a plane at an angle of ninety degrees from the position of the sun. It follows that by discovering that plane of polarisation, and measuring its azimuth with respect to the north, the position of the sun, although beneath the horizon, could be determined, and the apparent solar time obtained.
Thus, when the phenomenon of the polarisation of attention had taken place, all that was disorderly and fluctuating in the consciousness of the child seemed to be organizing itself into a spiritual creation, the surprising characteristics of which are reproduced in every individual.
When they had reached their greatest height, there seemed to open up in the midst of the vaporous mass a brilliant space, from which they could see the blue of heaven. The polariscope, directed towards this region, showed an internal polarisation, but, when pointed to the side where the mist still prevailed, there was no polarisation.
His teaching clearly was that the perfect individuality of Man is a Dual-Unity, the polarisation of the Infinite in the Manifest; and it requires only the recognition of this truth for the manifested element in this binary system to demonstrate its identity with the corresponding element which is not externally visible.
The former talked utter nonsense about the "harmony of nature" produced by "polarisation," alike in "rocks, plants and animals," etc. etc. etc. And Seeman objected that there was mimicry among plants, and that our theory would not explain it. Lubbock answered them both in his best manner.
The spirit of the age, that "polarisation of society" as Tarde used to call it, in a definite direction, is brought about by no cause that can be named as yet. It will remain beyond volitional control at least until we get some real insight into social physiology.
It was there that I acquired not only a good deal of rheumatism, but a great liking for our damp autumnal nature in the north of France. If, later in life, I have been charmed by Mount Hermon, and the sunheated slopes of the Anti-Lebanon, it is due to the polarisation which is the law of love and which leads us to seek out our opposites.
On the other hand, Lieutenant Campbell ascertained on the same occasion the polarisation of the coronal light in planes passing through the sun's centre, thereby showing that light to be, in whole or in part, reflected sunshine.
Since the last ascents of Gay Lussac, in 1804, already recorded, there had been a lull in ballooning enterprise in France, and no serious scientific expeditions are recorded until the year 1850, when MM. Baral and Bixio undertook some investigations respecting the upper air, which were to deal with its laws of temperature and humidity, with the proportion of carbonic acid present in it, with solar heat at different altitudes, with radiation and the polarisation of light, and certain other interesting enquiries.
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