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Updated: May 18, 2025
Whence as regards both water-vapour and carbon-dioxide we have reason to think them in relatively greater quantity than in our own air at corresponding barometric pressure." Johnstone Stoney, it loses altogether. * "I think Professor Lowell's results are erroneous through his neglect of the heat stored in the air by its absorption of radiation both from the sun and from the surface.
We'd had time to realize that we weren't getting something for nothing. Every molecule of carbon-dioxide that crystallized out took two atoms of oxygen with it, completely out of circulation. We were also losing water-vapor, we found; normally, any one of our group knew enough science to know that the water would fall out before the carbon dioxide, but we hadn't thought of it.
"Br-r-r!" she said, full of all men's awe at the carbon-dioxide paradox. "I'm so hot I'm cold!" Miss Clarice Delehanty slid out of a shower of tulle-of-gold dancing-frock and into an Avenue gown of rough serge. The tail of a very arched eyebrow threatened, and then ran down in a black rill. "If Niagara Falls was claret lemonade, You'd see me beat it to a watery grave."
Professor Chamberlin observes that, since the absorbing rock-surface was greatly reduced in the Jurassic, the carbon-dioxide would tend to accumulate in its atmosphere, and help to explain the high temperature. But the great spread of vegetation and the rise of land in the later Jurassic and the Cretaceous would reduce this density of the atmosphere, and help to lower the temperature.
It may be noted that Mr. Lowell objects to the carbon-dioxide theory of the formation of the snow-caps, that this gas at low pressures does not liquefy, but passes at once from the solid to the gaseous state, and that only water remains liquid sufficiently long to produce the blue colour' which plays so large a part in his argument for the mild climate essential for an inhabited planet.
The first of these statements may be admitted as a fact which he is entitled to dwell upon, but the second the presence of large quantities of carbon-dioxide and aqueous vapour is a pure hypothesis unsupported by any item of scientific evidence, while in the case of aqueous vapour it is directly opposed to admitted results founded upon the molecular theory of gaseous elasticity. But, although Mr.
We have then to consider the possibility of a reduction of the quantity of carbon-dioxide in the atmosphere The inexpert reader probably has a very exaggerated idea of the fall in temperature that would be required to give Europe an Ice-Age.
Everybody who had been deriding Sharll Renner were now acclaiming him. But it was lifeless. The ships came crowding in; air-locked landing-craft full of space-armored ground-fighters went down. Screens in the command room lit as they transmitted in views. Depressions in the carbon-dioxide snow where the hundred-foot pad-feet of ships' landing-legs had pressed down.
It may be half carbon-dioxide for all we know; but a few matches will soon tell us that." Within a quarter of an hour they were again standing on the surface. Murgatroyd had orders to follow them as far as possible with the head searchlight, which, in the comparatively rarefied atmosphere, appeared to have a range of several miles.
Rick was reasonably sure the Blue Ghost appeared in a carbon-dioxide cloud, and he was beginning to have an inkling of how this was accomplished in principle, if not in specific terms. There were, after all, he reasoned, only a few ways of creating a visible image. He was going through the list of possibilities, eliminating them one by one.
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