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Updated: June 18, 2025
There are, of course, many other special appliances which make up the sum total of a modern submarine's equipment. Electricity is used for illuminating all parts of the boat. Heat is supplied in the same manner; this is a very essential feature because the temperature of a submarine, after a certain period of submergence, becomes uncomfortably low. Electricity is also used for cooking purposes.
They reached the surface after about two hours of submergence. It was dark by the time the merchant submarine was approaching the three-mile limit. Outside of it hostile warships were lying in wait. That the Deutschland escaped them well illustrates the fact that submarines may be kept by various means from entering a bay or a harbour, but that to blockade their exit is practically impossible.
In the first place, the submergence of the old pagan world, with its practice and, to some extent, ideal of sexual indulgence, removed the foil which had given grace and delicacy to the tender freedom of the young Christians.
The coastal plain of the Atlantic states may be regarded as the emerged inner margin of this shelf, and borings made along the coast probe it to the depth of as much as three thousand feet without finding the bottom of ancient offshore deposits. Continental shelves may also be due in part to a submergence of the outer margin of a continental plateau and to marine abrasion.
It may, however, be contended that the parallel roads were produced when the general crust of ice first gave place to a period of separate glaciers, and that no period of deep submergence ever intervened in Lochaber after the time of the lakes.
This sheet of land-ice sliding down to lower levels, ground down and polished the subjacent rocks, sweeping off nearly all superficial deposits of older date, and leaving only till and boulders in their place. To this continental state succeeded a period of depression and partial submergence.
No doubt, the relations of sea and land have been much as they are during historical time; but it is at the same time past all doubt, that the last great geological event, in respect of most countries known, was a submergence which produced the marine alluvial deposits; and when we find that Scandinavia is slowly but steadily rising in some parts at this moment, and that a thousand miles of the west coast of South America rose four feet in a single night only thirty years ago, we cannot feel quite assured, that the agencies which produced that submergence, and the subsequent re-emergence, are at an end.
The ventilation was excellent, and her officers declared that they could stand twenty-four hours continuous submergence without discomfort, after that for six hours it was uncomfortable, and thereafter intolerable because of the exudation of moisture or sweating from every part. At such times all below have to wear leather suits. The food was varied and cooked on an electric stove.
As quietly therefore as he could, he got through the opening and into the water, amongst the lilies, where, much impeded by their tangling roots, which caused him many a submergence, but with a moon in her second quarter over his head to light him, he swam gently along.
She had accepted this submergence as philosophically as all her other trials, and now, in extreme old age, was rewarded by presenting to her mirror an almost unwrinkled expanse of firm pink and white flesh, in the centre of which the traces of a small face survived as if awaiting excavation.
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