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This change in the convexity of the lens is only a slight one, as the difference in the focal point between rays from an object twenty feet distant and one four inches distant is only one-tenth of an inch. While this muscular action is taking place, the pupil contracts and the eyeballs converge by the action of the internal rectus muscles.
You can lower the excess of growth at the heels. "There are many designs of shoes to relieve this condition. A great deal depends on the judgment of the shoer to meet the conditions presented, depending on the degree of the convexity and strength of the sole. In some cases we use a shoe that admits of a large amount of sole room. Again, we shoe with a shoe of wide cover.
To this was presently added our exploitation of Moggs' Domestic Soap, and so he took up the Domestic Convenience Campaign that, coupled with his equatorial rotundity and a certain resolute convexity in his bearings won my uncle his Napoleonic title.
When, standing on the seashore, we see the sails of a ship on the sea horizon, her hull being hidden because it is below, the inference that this is due to the convexity of the surface is based on the idea that light moves in a straight line. If a ray of light is curved toward the surface, we should have the same appearance, although the earth might be perfectly flat.
For the situation would have been so terrible had the bullet, missing its aim, been dragged beyond the lunar disc and fallen into interplanetary space. At that moment the moon, instead of appearing flat like a disc, already showed her convexity. If the sun's rays had reached her obliquely the shadow then thrown would have made the high mountains stand out.
At that moment, the moon, instead of appearing flat like a disc, showed its convexity. If the sun's rays had struck it obliquely, the shadow thrown would have brought out the high mountains, which would have been clearly detached. The eye might have gazed into the crater's gaping abysses, and followed the capricious fissures which wound through the immense plains.
Examination and inquiry showed us no contiguous source of the message and it seemed most improbable that it had come to us from any distant part of the earth, as we had become acquainted with the difficulty or impossibility of bridging our very great distances with the resources then at human command, and with the unavoidable exigence of the earth's convexity.
The convexity of the interior is such that the centre of it is about 800 feet higher than the margin, under the walls; a protuberance which would, nevertheless, be scarcely remarked in situ, as it represents no steeper gradient than about 1 in 300 on any portion of its superficies.
"Oh for some wings, or else a balloon!" cried Servadac, as he gazed around him; and then, looking down to the rock upon which they were standing, he added, "We seem to have been transplanted to a soil strange enough in its chemical character to bewilder the savants at a museum." "And do you observe, captain," asked the count, "how the convexity of our little world curtails our view?
After this, I took the sword up and marched on the platform with it at my side. This I will say for it that, considering its size and weight, it is easily carried; for not only is there the crosspiece as hand-guard, but above this is a crescent worked in the iron, the horns extending with the convexity towards the point of the blade.
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