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Updated: June 14, 2025
How many things might have happened in a month on the shores of Newfoundland! Was it not still winter, the dangerous season of equinoxes? Are not these fishing banks the most dangerous in the world, swept by terrible gales from the North Pole? A perilous and arduous vocation was this business of fishing which Ole followed!
If additional proof of the latter were needed, it was furnished by Bradley's great discovery of the aberration of the fixed stars, an aberration depending partly on the progressive motion of light, and partly on the revolution of the earth. Bradley's discovery ranked in importance with that of the precession of the equinoxes.
Now and then, at intervals of hundreds of thousands or millions of years, the orbit becomes very elliptical; then again for long periods it may in form approach a circle. When in the state of extreme ellipticity, the precession of the equinoxes will cause the hemispheres in turn each to have their winter and summer alternately near and far from the sun.
So that, if we may place reliance on the appreciable change of climate by the precession of the equinoxes, a thousand years ago and more, when the Norwegians crossed from Scandinavia and found these Christian Irish there, the island was not the forbidding spot that it seems with the lapse of centuries to be becoming.
The development of the Copernican system did a great deal of damage to the interests of astrology, but it was not until the discovery of the precession of the equinoxes that this venerable and pretentious art received its death-blow.
In connection with Hipparchus' great discovery it may be mentioned that modern astronomers have often attempted to fix dates in history by the effects of precession of the equinoxes. At about the date when the Great Pyramid may have been built gamma Draconis was near to the pole, and must have been used as the pole-star.
There is a further complication arising from that curious phenomenon called the precession of the equinoxes, which has to be taken into account before we can sufficiently comprehend the effect of the varying eccentricity of the orbit on the earth's seasons.
Within it were seen the twelve signs of the zodiac, the twelve months of the year, with their properties, the two equinoxes, the ecliptic line, with some of the most remarkable fixed stars about the antartic pole and elsewhere, so curiously engraven that I fancied them to be the workmanship of King Necepsus, or Petosiris, the ancient mathematician.
I remember that Perry was very much excited when I told him about this Dead World, for he seemed to think that it explained the hitherto inexplicable phenomena of nutation and the precession of the equinoxes. When the two upon the lidis had come quite close to us we saw that one was a man and the other a woman.
“Almost all the greatest discoveries in Astronomy,” says the same author, “have resulted from the consideration of residual phenomena of a quantitative or numerical kind.... It was thus that the grand discovery of the precession of the equinoxes resulted as a residual phenomenon, from the imperfect explanation of the return of the seasons by the return of the sun to the same apparent place among the fixed stars.
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