Sun-scorched by day, the temperature drops rapidly as night falls upon these elevated steppes, 7,000 feet or more above the level of the sea, and the bitter cold of the rarefied air before the dawn takes possession of the atmosphere.
The heat of the midday sun at these high elevations is succeeded at night by the bitter cold of the rarefied air, and the white drill suit we have worn must be supplemented by heavier garments.
There is a popular belief that warming the air of a room by artificial heat in the rarefied air of the uplands induces pneumonia, but it is doubtful if this has any real foundation.
As electricity passes through rarefied gases much easier than through ordinary air, regular tubes, called vacuum-tubes, are made for such study.
Reaction and periostitis suggested the radiograph after infection had rarefied the fragment, shown but very faintly on the left side of the plate.
For in the rarefied air at high altitudes there is insufficient oxygen to promote the normal oxidation of bodily tissue.
Up till now I had felt no ill-effects from the rarefied air; I had not even had a headache and my appetite was good, though I owned to feeling rather lazy and it always needed an effort to concentrate one's thoughts.
For instance, going to Mars we must use an atmosphere more and more rarefied each day, until gradually we become used to the thin air we expect to find there.
I remember the returned appetite with which I enjoyed potted meat and a tinned pudding, after the first hour of as vigorous exercise as our rarefied air would permit.
We may, therefore, suppose that these vesicles are filled in some way with rarefied air, and are so many little balloons whose height in the atmosphere varies in proportion to the density of the air they contain.
How this enclosed air should become rarefied on the formation of the tiny globule is a problem still to be solved.
For the air under pressure would give out latent heat, on the same principle as it becomes colder when rarefied in the higher regions of the atmosphere.
The heated and rarefied air is always rising and flowing from the equator towards the poles in the higher regions of the atmosphere; while in the lower, the colder air is flowing back to restore the equilibrium.
The country gentry of old time lived in a rarefied social air: dotted apart on their stations up the mountain they looked down with imperfect discrimination on the belts of thicker life below.
And so the blue form goes climbing on, burdened now with that fatal endorsement, labouring over ridge after ridge, and on each successive height the atmosphere becomes more rarefied (though the population is more numerous).
Every fluid is rarefied by heat and condensed by cold.
In inflammation, the air, at first very much rarefied by heat, loses its volume, and fixes itself suddenly.
Water, rarefied by heat, is transformed into a kind of air capable of feeding the fire like common air.
No sound of conflict reached our ears, for in the rarefied atmosphere of our great altitude no sound wave could penetrate; they were dissipated in thin air far below us.
By the end of January, 1877, we had crossed those regions of rarefied ether, which were little more than an absolute vacuum; and the Sirius was once again propelled by its motive forces alone.
I have endeavoured to show that this aetherial medium is matter, but infinitely more rarefied and infinitely more elastic, but notwithstanding its extreme rarefaction and elasticity, it possesses inertia, because it is gravitative.
The process which took place as it approached the sun is now exactly reversed, as it is now passing out of a denser into a more rarefied medium, where its motions and vibrations are less intense.
Aether is matter, though in an infinitely more rarefied and elastic form, we can now see the physical cause of the lines of force with which by his imagination he filled all space.
It is suspected the heat of the montgolfier rarefied too much the inflammable air of the other, and occasioned it to burst.
Lastly, they spoke in such a manner that the speech fell only into the interior understanding; its fluency was like that of rarefied air.
These several kinds of speech were circumstanced like different fluids--the first kind was like flowing water; the second like water of less density; the third like the atmosphere respectively; and the fourth like rarefied air.
The depth of the snow and numerous precipices are the chief obstacles; but the excessively rarefied air is another hinderance.
Here the rarefied air becomes pure, thin and perfectly transparent; but as it necessarily lacks moisture, which condenses below this region, the vegetation is neither so luxuriant nor so constantly vigorous.
Its climate is cold, and its extremely rarefied air is dangerous for lungs unaccustomed to breathe the atmosphere of such lofty regions.
The artificial application of air to lungs at varying pressure is carried out by inspiring rarefied air or compressed air and expiring into rarefied air or into compressed air.
Only inspiring compressed air, or expiring into rarefied air, can be practically applied.
He alone of created boys could joke in the rarefied air of the Head Master's schoolroom, and had power to "chase away the passing frown" with some audacious witticism for which an English boy would have been punished.
Sir Henry Cunningham's memoir of him only illustrated afresh the impossibility of transplanting to the printed page the rarefied humour of so delicate a spirit.
The atmosphere was nearly gone, so rarefied had it become, and through it Professor Jameson could view with amazing clarity without discomfort to his eyes the bloated body of the dying sun.
Surrounding the flaming sphere, many of the stars could be perceived through the earth's thin, rarefied atmosphere.
He lives in the rarefiedair of the mountain tops, above the gulfs, on the threshold of the other world which he sees in part by flashes of grace, and he remains lucid, undazzled in the blaze of light around him.
But in a dense atmosphere it requires more heat to boil water than it does in a rarefied atmosphere like that up here on the mountain.
The second explains the water that covered the earth as being rarefied or nebulous, which was afterwards condensed when the waters were gathered together.
Nor is it less absurd to say, in support of this opinion, that bodies may be rarefied infinitely, since natural bodies cannot be infinitelyrarefied or divided, but up to a certain point only.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "rarefied" in a variety of sentences. We hope that you will now be able to make sentences using this word.
