SFworld 版 (精华区)
发信人: champaign (原野), 信区: SFworld
标 题: Under the sea 11
发信站: 哈工大紫丁香 (Thu Oct 21 21:32:03 1999), 转信
发信人: Mojun (寻找mili的mickey), 信区: SFworld
标 题: Under the sea 11
发信站: BBS 水木清华站 (Wed Feb 25 15:32:28 1998)
CHAPTER XI.
ALL BY ELECTRICITY.
"SIR," said Captain Nemo, showing me the instruments hanging on
the walls of his room, "here are the contrivances required for the
navigation of the Nautilus. Here, as in the drawing room, I have
them always under my eyes, and they indicate my position and exact
direction in the middle of the ocean. Some are known to you, such as
the thermometer, which gives the internal temperature of the Nautilus;
the barometer, which indicates the weight of the air and foretells the
changes of the weather; the hygrometer, which marks the dryness of the
atmosphere; the storm glass, the contents of which, by decomposing,
announce the approach of tempests; the compass, which guides my
course; the sextant, which shows the latitude by the altitude of the
sun; chronometers, by which I calculate the longitude; and glasses for
day and night, which I use to examine the points of the horizon,
when the Nautilus rises to the surface of the waves."
"These are the usual nautical instruments," I replied, "and I
know the use of them. But these others, no doubt, answer to the
particular requirements of the Nautilus. This dial with the movable
needle is a manometer, is it not?"
"It is actually a manometer. But by communication with the
water, whose external pressure it indicates, it gives our depth at the
same time."
"And these other instruments, the use of which I cannot guess?"
"Here, Professor, I ought to give you some explanations. Will
you be kind enough to listen to me?"
He was silent for a few moments, then he said:
"There is a powerful agent, obedient, rapid, easy, which
conforms to every use, and reigns supreme on board my vessel.
Everything is done by means of it. It lights it, warms it, and is
the soul of my mechanical apparatus. This agent is electricity."
"Electricity?" I cried in surprise.
"Yes, Sir."
"Nevertheless, Captain, you possess an extreme rapidity of
movement, which does not agree well with the power of electricity.
Until now, its dynamic force has remained under restraint, and has
only been able to produce a small amount of power."
"Professor," said Captain Nemo, "my electricity is not
everybody's. You know what sea water is composed of. In a thousand
grams are found 96 1/2 per cent of water, and about 2 2/3 per cent
of chloride of sodium; then, in a smaller quantity, chlorides of
magnesium and of potassium, bromide of magnesium, sulphate of
magnesia, sulphate and carbonate of lime. You see, then, that chloride
of sodium forms a large part of it. So it is this sodium that I
extract from sea water, and of which I compose my ingredients, I owe
all to the ocean; it produces electricity, and electricity gives heat,
light, motion, and, in a word, life to the Nautilus."
"But not the air you breathe?"
"Oh! I could manufacture the air necessary for my consumption, but
it is useless, because I go up to the surface of the water when I
please. However, if electricity does not furnish me with air to
breathe, it works at least the powerful pumps that are stored in
spacious reservoirs, and which enable me to prolong at need, and as
long as I will, my stay in the depths of the sea. It gives a uniform
and unintermittent light, which the sun does not. Now look at this
clock; it is electrical, and goes with a regularity that defies the
best chronometers. I have divided it into twenty-four hours, like
the Italian clocks, because for me there is neither night nor day, sun
nor moon, but only that factitious light that I take with me to the
bottom of the sea. Look! just now, it is ten o'clock in the morning."
"Exactly."
"Another application of electricity. This dial hanging in front of
us indicates the speed of the Nautilus. An electric thread puts it
in communication with the screw, and the needle indicates the real
speed. Look now we are spinning along with a uniform speed of
fifteen miles an hour."
"It is marvelous! and I see, Captain, you were right to make use
of this agent that takes the place of wind, water, and steam."
"We have not finished, M. Aronnax," said Captain Nemo, rising; "if
you will follow me, we will examine the stern of the Nautilus."
Really, I knew already the anterior part of this submarine boat,
of which this is the exact division, starting from the ship's head:
the dining room, five yards long, separated from the library by a
water-tight partition; the library, five yards long; the large drawing
room, ten yards long, separated from the captain's room by a second
watertight partition; the said room, five yards in length; mine, two
and a half yards; and lastly, a reservoir of air, seven and a half
yards, that extended to the bows. Total length thirty-five yards, or
one hundred five feet. The partitions had doors that were shut
hermetically by means of India-rubber instruments, and they insured
the safety of the Nautilus in case of a leak.
I followed Captain Nemo through the waist, and arrived at the
center of the boat. There was a sort of well that opened between two
partitions. An iron ladder, fastened with an iron hook to the
partition, led to the upper end. I asked the captain what the ladder
was used for.
"It leads to the small boat," he said.
"What! have you a boat?" I exclaimed, in surprise.
"Of course; an excellent vessel, light and insubmersible, that
serves either as a fishing or as a pleasure boat."
"But then, when you wish to embark, you are obliged to come to the
surface of the water?"
"Not at all. This boat is attached to the upper part of the hull
of the Nautilus, and it occupies a cavity made for it. It is decked,
quite water-tight, and held together by solid bolts. This ladder leads
to a manhole made in the hull of the Nautilus, that corresponds with a
similar hole made in the side of the boat. By this double opening I
get into the small vessel. They shut the one belonging to the
Nautilus, I shut the other by means of screw pressure. I undo the
bolts, and the little boat goes up to the surface of the sea with
prodigious rapidity. I then open the panel of the bridge, carefully
shut till then; I mast it, hoist my sail, take my oars, and I'm off."
"But how do you get back on board?"
"I do not come back, M. Aronnax; the Nautilus comes to me."
"By your orders?"
"By my orders. An electric thread connects us. I telegraph to
it, and that is enough."
"Really," I said, astonished at these marvels, "nothing can be
more simple."
After having passed by the cage of the staircase that led to the
platform, I saw a cabin six feet long, in which Conseil and Ned
Land, enchanted with their repast, were devouring it with avidity.
Then a door opened into a kitchen nine feet long, situated between the
large storerooms. There electricity, better than gas itself, did all
the cooking. The streams under the furnaces gave out to the sponges of
platina a heat which was regularly kept up and distributed. They
also heated a distilling apparatus, which, by evaporation, furnished
excellent drinkable water. Near this kitchen was a bathroom
comfortable furnished, with hot and cold water taps.
Next to the kitchen was the berth room of the vessel, sixteen feet
long. But the door was shut, and I could not see the management of it,
which might have given me an idea of the number of men employed on
board the Nautilus.
At the bottom was a fourth partition that separated this office
from the engine room. A door opened, and I found myself in the
compartment where Captain Nemo- certainly an engineer of a very high
order- had arranged his locomotive machinery. This engine room,
clearly lighted, did not measure less than sixty-five feet in
length. It was divided into two parts; the first contained the
materials for producing electricity, and the second the machinery that
connected it with the screw. I examined it with great interest, in
order to understand the machinery of the Nautilus.
"You see," said the captain, "I use Bunsen's contrivances, not
Ruhmkorff's. Those would not have been powerful enough. Bunsen's are
fewer in number, but strong and large, which experience proves to be
the best. The electricity produced passes forward, where it works,
by electromagnets of great size, on a system of levers and cogwheels
that transmit the movement to the axle of the screw. This one, the
diameter of which is nineteen feet, and the thread twenty-three
feet, performs about a hundred twenty revolutions in a second."
"And you get then?"
"A speed of fifty miles an hour."
"I have seen the Nautilus maneuver before the Abraham Lincoln, and
I have my own ideas as to its speed. But this is not enough. We must
see where we go. We must be able to direct it to the right, to the
left, above, below. How do you get to the great depths, where you find
an increasing resistance, which is rated by hundreds of atmospheres?
How do you return to the surface of the ocean? And how do you maintain
yourselves in the requisite medium? Am I asking too much?
"Not at all, Professor," replied the captain, with some
hesitation; "since you may never leave this submarine boat. Come
into the saloon, it is our usual study, and there you will learn all
you want to know about the Nautilus."
--
我这样爱你到底对不对,
这问题问得我自己好累。
我宁愿流泪,也不愿意后悔
可是我最后注定还是要心碎
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