Its presence has also been detected in the sun and in meteoric iron.
This ended Decazes's meteoric career of greatness.
Halley's comet conforms very well, however, with a meteoric shower directed from Aquarius early in May.
Fine meteoric showers occurred in 1798 (Dec. 7), 1838 (Dec. 7), 1872 (Nov.
The meteoric occurrence has even suggested the fanciful notion that all diamonds were originally derived from meteorites.
The integration of the scattered tribes of Arabia in the 7th century by the stirring religious propaganda of Mahomet was accompanied by a meteoric rise in the intellectual powers of a hitherto obscure race.
By the operation of meteoric agencies, iron pyrites readily pass into limonite often with retention of external form; and the masses of "gozzan" or "gossan" on the outcrop of certain mineral-veins consist of rusty iron ore formed in this way, and associated with cellular quartz.
Graphitic carbon in cubic form (cliftonite) has also been found in certain meteoric " irons," for example in those from Magura in Szepes county, Hungary, and Youndegin near York in Western Australia.
The earth would intercept an amount of it proportional to the solid angle it subtends at the sun; that is to say, it would receive a deposit of meteoric matter about one-tenth of a millimetre, of density say 2, over its whole surface in the course of the year.
These fetish objects of worship were meteoric stones, which were dedicated to the gods or revered as symbols of the gods themselves (Pliny, Nat.
The full realization of the method will doubtless provide adequate data for the detailed investigation of meteoric paths.
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The most plausible view is that we have to do with sunlight reflected from meteoric particles moving round the sun within the region of the lens.
The meteoric charm of his conversation is well described in Stevenson's essay on "Talk and Talkers," under the name of Cockshot.
- his meteoric career did but colour the sky of the Jews with deeper blackness.
But the new system was unsuited to the Mahratta genius; it hampered the meteoric movements of the cavalry, which was obliged to manoeuvre in combination with the new artillery and the disciplined battalions.
This iron is considered by several of the first authorities"on the subject to be of meteoric origin,' but no evidence hitherto given seems to prove decisively that it cannot be telluric. That the nodules found were lying on gneissic rock, with no basaltic rocks in the neighbourhood, does not prove that the iron may not originate from basalt, for the nodules may have been transported by the glaciers, like other erratic blocks, and will stand erosion much longer than the basalt, which may long ago have disappeared.
Thus, it has been held that it contained stone fetishes (meteoric stones and the like) from Yahweh's original abode on Sinai or Horeb.
The explanation of the meteoric splendour of the Brunonian system in other countries seems to be as follows.
Historical records were searched for references to past meteoric displays, and these were tabulated and compared.
Thus the August Perseids, the returns of which have been witnessed more frequently than those of any other meteoric stream have had their radiant point fixed on more than 250 occasions.
Historical records supply the following dates of abundant meteoric displays: - These showers occurred at intervals of about one-third of a century, while the day moved along the calendar at the rate of one month in a thousand years.
Biela's comet of 1826, which had a period of 6.7 years, presented a significant resemblance of orbit with that of the meteors, but the comet has not been seen since 1852 and has probably been resolved into the meteoric stream of Andromedids.
But there are really few comets which pass sufficiently near the earth to give rise to a meteoric shower.
Meteoric observation has depended upon rough and hurried eye estimates in past years, but the importance of attaining greater accuracy by means of photography has been recognized.
Amongst the foreign material found embedded in the red clay are globules of meteoric iron, which are sometimes very abundant.
This fact, together with the extraordinarily rare occurrence of such remains and meteoric particles in globigerina ooze, although there is no reason to suppose that at any one time they are unequally distributed over the ocean floor, can only be explained on the assumption that the rate of formation of the epilophic deposits through the accumulation of pelagic shells falling from the surface is rapid enough to bury the slowgathering material which remains uncovered on the spaces where the red clay is forming at an almost infinitely slower rate.
The graphite found in granite and in veins in gneiss, as well as that contained in meteoric irons, cannot have had such an origin.
13 seq., 23-27, 30, &c.) and besides these the baetylia (meteoric stones) which were regarded as symbols of the gods.
On exposure to meteoric influences pyrites commonly becomes brown, by formation of ferric hydrate or limonite, whence the change is called "limonitization."
The meteoric iron of Arizona, some of which contains diamond, is actually found in and about a huge crater which is supposed by some to have been formed by an immense meteorite penetrating the earth's crust.
The collision theory supposes that the outburst is the result of a collision between two stars or between a star and a swarm of meteoric or nebulous matter.
The combined nitrogen of dead organisms, broken down to ammonia by putrefactive bacteria, the ammonia of urea and the results of the fixation of free nitrogen, together with traces of nitrogen salts due to meteoric activity, are thus seen to undergo various vicissitudes in the soil, rivers and surface of the globe generally.
Von Helmholtz independently raised and discussed the possibility of such an origin of terrestrial life, laying stress on the presence of hydrocarbons in meteoric stones and on the indications of their presence revealed by the spectra of the tails of comets.
The fall of meteoric matter into the sun must be a certain source of energy; if considerable, this external supply would retard the sun's contraction and so increase its estimated age, but to bring about a reconciliation with geological theory, very nearly the whole amount must be thus supplied.
The black stone is a small dark mass a span long, with an aspect suggesting volcanic or meteoric origin, fixed at such a height that it can be conveniently kissed by a person of middle size.
Hall also reaches the interesting conclusion that the plane in question seems to lie near the invariable plane of the solar system, a result which might be expected if the light proceeded from a swarm of independent meteoric particles moving around the sun.
Small rounded spherules of iron, believed by some to be meteoric dust, have also been obtained in some numbers.