An observer endued1 with an infinite range of vision, and placed in that unknown center around which the entire world revolves2, might have beheld4 myriads5 of atoms filling all space during the chaotic6 epoch7 of the universe. Little by little, as ages went on, a change took place; a general law of attraction manifested itself, to which the hitherto errant atoms became obedient: these atoms combined together chemically according to their affinities8, formed themselves into molecules9, and composed those nebulous masses with which the depths of the heavens are strewed11. These masses became immediately endued with a rotary12 motion around their own central point. This center, formed of indefinite molecules, began to revolve3 around its own axis13 during its gradual condensation14; then, following the immutable15 laws of mechanics, in proportion as its bulk diminished by condensation, its rotary motion became accelerated, and these two effects continuing, the result was the formation of one principal star, the center of the nebulous mass.
By attentively16 watching, the observer would then have perceived the other molecules of the mass, following the example of this central star, become likewise condensed by gradually accelerated rotation17, and gravitating round it in the shape of innumerable stars. Thus was formed the Nebulae, of which astronomers19 have reckoned up nearly 5,000.
Among these 5,000 nebulae there is one which has received the name of the Milky20 Way, and which contains eighteen millions of stars, each of which has become the center of a solar world.
If the observer had then specially21 directed his attention to one of the more humble22 and less brilliant of these stellar bodies, a star of the fourth class, that which is arrogantly23 called the Sun, all the phenomena24 to which the formation of the Universe is to be ascribed would have been successively fulfilled before his eyes. In fact, he would have perceived this sun, as yet in the gaseous25 state, and composed of moving molecules, revolving26 round its axis in order to accomplish its work of concentration. This motion, faithful to the laws of mechanics, would have been accelerated with the diminution27 of its volume; and a moment would have arrived when the centrifugal force would have overpowered the centripetal28, which causes the molecules all to tend toward the center.
Another phenomenon would now have passed before the observer’s eye, and the molecules situated29 on the plane of the equator, escaping like a stone from a sling30 of which the cord had suddenly snapped, would have formed around the sun sundry31 concentric rings resembling that of Saturn32. In their turn, again, these rings of cosmical matter, excited by a rotary motion about the central mass, would have been broken up and decomposed33 into secondary nebulosities, that is to say, into planets. Similarly he would have observed these planets throw off one or more rings each, which became the origin of the secondary bodies which we call satellites.
Thus, then, advancing from atom to molecule10, from molecule to nebulous mass, from that to principal star, from star to sun, from sun to planet, and hence to satellite, we have the whole series of transformations34 undergone by the heavenly bodies during the first days of the world.
Now, of those attendant bodies which the sun maintains in their elliptical orbits by the great law of gravitation, some few in turn possess satellites. Uranus35 has eight, Saturn eight, Jupiter four, Neptune36 possibly three, and the Earth one. This last, one of the least important of the entire solar system, we call the Moon; and it is she whom the daring genius of the Americans professed37 their intention of conquering.
The moon, by her comparative proximity38, and the constantly varying appearances produced by her several phases, has always occupied a considerable share of the attention of the inhabitants of the earth.
From the time of Thales of Miletus, in the fifth century B.C., down to that of Copernicus in the fifteenth and Tycho Brahe in the sixteenth century A.D., observations have been from time to time carried on with more or less correctness, until in the present day the altitudes of the lunar mountains have been determined39 with exactitude. Galileo explained the phenomena of the lunar light produced during certain of her phases by the existence of mountains, to which he assigned a mean altitude of 27,000 feet. After him Hevelius, an astronomer18 of Dantzic, reduced the highest elevations40 to 15,000 feet; but the calculations of Riccioli brought them up again to 21,000 feet.
At the close of the eighteenth century Herschel, armed with a powerful telescope, considerably41 reduced the preceding measurements. He assigned a height of 11,400 feet to the maximum elevations, and reduced the mean of the different altitudes to little more than 2,400 feet. But Herschel’s calculations were in their turn corrected by the observations of Halley, Nasmyth, Bianchini, Gruithuysen, and others; but it was reserved for the labors42 of Boeer and Maedler finally to solve the question. They succeeded in measuring 1,905 different elevations, of which six exceed 15,000 feet, and twenty-two exceed 14,400 feet. The highest summit of all towers to a height of 22,606 feet above the surface of the lunar disc. At the same period the examination of the moon was completed. She appeared completely riddled43 with craters44, and her essentially45 volcanic46 character was apparent at each observation. By the absence of refraction in the rays of the planets occulted by her we conclude that she is absolutely devoid47 of an atmosphere. The absence of air entails48 the absence of water. It became, therefore, manifest that the Selenites, to support life under such conditions, must possess a special organization of their own, must differ remarkably49 from the inhabitants of the earth.
At length, thanks to modern art, instruments of still higher perfection searched the moon without intermission, not leaving a single point of her surface unexplored; and notwithstanding that her diameter measures 2,150 miles, her surface equals the one-fifteenth part of that of our globe, and her bulk the one-forty-ninth part of that of the terrestrial spheroid — not one of her secrets was able to escape the eyes of the astronomers; and these skillful men of science carried to an even greater degree their prodigious50 observations.
Thus they remarked that, during full moon, the disc appeared scored in certain parts with white lines; and, during the phases, with black. On prosecuting51 the study of these with still greater precision, they succeeded in obtaining an exact account of the nature of these lines. They were long and narrow furrows52 sunk between parallel ridges53, bordering generally upon the edges of the craters. Their length varied54 between ten and 100 miles, and their width was about 1,600 yards. Astronomers called them chasms55, but they could not get any further. Whether these chasms were the dried-up beds of ancient rivers or not they were unable thoroughly56 to ascertain57.
The Americans, among others, hoped one day or other to determine this geological question. They also undertook to examine the true nature of that system of parallel ramparts discovered on the moon’s surface by Gruithuysen, a learned professor of Munich, who considered them to be “a system of fortifications thrown up by the Selenitic engineers.” These two points, yet obscure, as well as others, no doubt, could not be definitely settled except by direct communication with the moon.
Regarding the degree of intensity58 of its light, there was nothing more to learn on this point. It was known that it is 300,000 times weaker than that of the sun, and that its heat has no appreciable59 effect upon the thermometer. As to the phenomenon known as the “ashy light,” it is explained naturally by the effect of the transmission of the solar rays from the earth to the moon, which give the appearance of completeness to the lunar disc, while it presents itself under the crescent form during its first and last phases.
Such was the state of knowledge acquired regarding the earth’s satellite, which the Gun Club undertook to perfect in all its aspects, cosmographic, geological, political, and moral.
1 endued | |
v.授予,赋予(特性、才能等)( endue的过去式和过去分词 ) | |
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2 revolves | |
v.(使)旋转( revolve的第三人称单数 );细想 | |
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3 revolve | |
vi.(使)旋转;循环出现 | |
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4 beheld | |
v.看,注视( behold的过去式和过去分词 );瞧;看呀;(叙述中用于引出某人意外的出现)哎哟 | |
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5 myriads | |
n.无数,极大数量( myriad的名词复数 ) | |
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6 chaotic | |
adj.混沌的,一片混乱的,一团糟的 | |
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7 epoch | |
n.(新)时代;历元 | |
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8 affinities | |
n.密切关系( affinity的名词复数 );亲近;(生性)喜爱;类同 | |
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9 molecules | |
分子( molecule的名词复数 ) | |
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10 molecule | |
n.分子,克分子 | |
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11 strewed | |
v.撒在…上( strew的过去式和过去分词 );散落于;点缀;撒满 | |
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12 rotary | |
adj.(运动等)旋转的;轮转的;转动的 | |
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13 axis | |
n.轴,轴线,中心线;坐标轴,基准线 | |
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14 condensation | |
n.压缩,浓缩;凝结的水珠 | |
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15 immutable | |
adj.不可改变的,永恒的 | |
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16 attentively | |
adv.聚精会神地;周到地;谛;凝神 | |
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17 rotation | |
n.旋转;循环,轮流 | |
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18 astronomer | |
n.天文学家 | |
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19 astronomers | |
n.天文学者,天文学家( astronomer的名词复数 ) | |
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20 milky | |
adj.牛奶的,多奶的;乳白色的 | |
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21 specially | |
adv.特定地;特殊地;明确地 | |
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22 humble | |
adj.谦卑的,恭顺的;地位低下的;v.降低,贬低 | |
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23 arrogantly | |
adv.傲慢地 | |
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24 phenomena | |
n.现象 | |
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25 gaseous | |
adj.气体的,气态的 | |
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26 revolving | |
adj.旋转的,轮转式的;循环的v.(使)旋转( revolve的现在分词 );细想 | |
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27 diminution | |
n.减少;变小 | |
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28 centripetal | |
adj.向心的 | |
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29 situated | |
adj.坐落在...的,处于某种境地的 | |
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30 sling | |
vt.扔;悬挂;n.挂带;吊索,吊兜;弹弓 | |
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31 sundry | |
adj.各式各样的,种种的 | |
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32 Saturn | |
n.农神,土星 | |
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33 decomposed | |
已分解的,已腐烂的 | |
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34 transformations | |
n.变化( transformation的名词复数 );转换;转换;变换 | |
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35 Uranus | |
n.天王星 | |
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36 Neptune | |
n.海王星 | |
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37 professed | |
公开声称的,伪称的,已立誓信教的 | |
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38 proximity | |
n.接近,邻近 | |
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39 determined | |
adj.坚定的;有决心的 | |
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40 elevations | |
(水平或数量)提高( elevation的名词复数 ); 高地; 海拔; 提升 | |
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41 considerably | |
adv.极大地;相当大地;在很大程度上 | |
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42 labors | |
v.努力争取(for)( labor的第三人称单数 );苦干;详细分析;(指引擎)缓慢而困难地运转 | |
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43 riddled | |
adj.布满的;充斥的;泛滥的v.解谜,出谜题(riddle的过去分词形式) | |
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44 craters | |
n.火山口( crater的名词复数 );弹坑等 | |
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45 essentially | |
adv.本质上,实质上,基本上 | |
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46 volcanic | |
adj.火山的;象火山的;由火山引起的 | |
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47 devoid | |
adj.全无的,缺乏的 | |
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48 entails | |
使…成为必要( entail的第三人称单数 ); 需要; 限定继承; 使必需 | |
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49 remarkably | |
ad.不同寻常地,相当地 | |
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50 prodigious | |
adj.惊人的,奇妙的;异常的;巨大的;庞大的 | |
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51 prosecuting | |
检举、告发某人( prosecute的现在分词 ); 对某人提起公诉; 继续从事(某事物); 担任控方律师 | |
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52 furrows | |
n.犁沟( furrow的名词复数 );(脸上的)皱纹v.犁田,开沟( furrow的第三人称单数 ) | |
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53 ridges | |
n.脊( ridge的名词复数 );山脊;脊状突起;大气层的)高压脊 | |
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54 varied | |
adj.多样的,多变化的 | |
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55 chasms | |
裂缝( chasm的名词复数 ); 裂口; 分歧; 差别 | |
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56 thoroughly | |
adv.完全地,彻底地,十足地 | |
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57 ascertain | |
vt.发现,确定,查明,弄清 | |
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58 intensity | |
n.强烈,剧烈;强度;烈度 | |
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59 appreciable | |
adj.明显的,可见的,可估量的,可觉察的 | |
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