LONG SHOTS.

Our artillerists have paid more attention of late years to the destructive properties of various forms of cannon² than to the question of range. It was different when first the rifling of cannon was under discussion. Then the subject which was most attentively³ considered (after accuracy of fire) was the range which might possibly be attained⁴ by various improvements in the structure of rifled cannon. Many of my readers will remember how, soon after the construction of Armstrong guns had been commenced in the Government factories, a story was spread abroad of the wonderful practice which had been made with this gun at a range of seven miles. At that tremendous range, a shot had been fired into the middle of a flock of geese, according to one version of the story; but this was presently improved upon, and we were told that a bird had been singled out of the flock by the artillerists and successfully ‘potted.’ Many believed this little narrative⁵; though some few, influenced perhaps by the consideration that a flock of geese would not be visible at a distance of seven miles, were obstinately⁶ incredulous. Presently it turned out that the Armstrong gun was incapable⁷ of throwing a shot to a distance of seven miles; so that a certain air of improbability has since attached to the narrative. Still there were not wanting those who referred to ‘Queen Anne’s pocket-pistol’—the cannon which was234 able to throw shot across the Straits of Dover; and in the fulness of their faith in that mythical⁸ piece of ordnance⁹, they refused to believe that the skill of modern artillerists was unequal to the construction of cannon even more effective.

If there are any who still believe in the powers ascribed to the far-famed ‘pocket-pistol,’ they will find their confidence in modern artillery¹⁰ largely shaken by the announcement that it is considered a great matter that one of Whitworth’s cannon should have thrown a shot to a distance of very nearly six miles and a half. Not only is this so, however, but it is well known that no piece of ordnance has ever flung a projectile¹¹ to so great a distance since first fire-arms were invented; and it may be safely predicted that men will never be able to construct a cannon which—as far as range is concerned—will do much better than this one of Mr. Whitworth’s. The greatest range which had ever before been attained fell somewhat short of six miles. The 7-inch steel gun contrived¹² by Mr. Lynall Thomas had flung a projectile weighing 175 lbs. to a distance of 10,075 yards; and, according to General Lefroy’s ‘Handbook of Artillery,’ that was the greatest range ever recorded. But Mr. Whitworth’s cannon has thrown a shot more than 1,000 yards farther.

Very few have any idea of the difficulties which oppose themselves to the attainment¹⁴ of a great range in artillery practice. It may seem, at first sight, the simplest possible matter to obtain an increase of range. Let the gun be made but strong enough to235 bear a sufficient charge, and range seems to be merely a question of the quantity of powder made use of. But in reality the matter is much more complicated. The artillerist¹ has to contrive¹³ that the whole of the powder made use of shall be burned before the shot leaves the cannon, and yet that the charge shall not explode so rapidly as to burst the cannon. If he used some forms of powder, very useful for special purposes, half the charge would be blown out without doing its share of work. On the other hand, there are some combustibles (as gun-cotton and the nitrates) which burn so fast that the gun would be likely to burst before the shot could be expelled. Then, again, the shot must fit so closely that there shall be no windage, and yet not so closely as to resist too much the action of the exploding powder. Again, there is the form of the shot to be considered. A sphere is not the solid which passes most readily through a resisting medium like the air; and yet, other projectiles¹⁵, which are best so long as they maintain a certain position, meet with a greater resistance when once they begin to move unsteadily. The conoid used in ordinary rifle practice, for example, passes much more freely through the air, point first, than an ordinary spherical¹⁶ bullet; but if the point did not travel first, as would happen but for the rifling, or even if the conoidal bullet ‘swayed about’ on its course, it would meet with more resistance than a spherical bullet. Hence the question of ‘fast or slow rifling’ has to be considered. ‘Fast rifling’ gives the greater spin, but causes more resistance to the exit of236 the shot from the barrel; with ‘slow-rifling,’ these conditions are reversed.

And then the common notion is that a cannon-ball travels in the curve called a parabola, and that artillerists have nothing to do but to calculate all about this parabola, and to deduce the range from the initial velocity¹⁷ according to some simple principles depending on the properties of the curve. All this is founded on a complete misapprehension of the true difficulties in the way of the problem. Only projectiles thrown with small velocity from the earth travel in parabolic paths. A cannon-ball follows a wholly different kind of curve. The resistance of the air, which seems to most persons a wholly insignificant¹⁸ item in the inquiry¹⁹, is so enormous in the case of a cannon-ball as to become by far the most important difficulty in the way of the practical artillerist. When a 250-lb. shot is hurled²⁰ with such force from a gun as to cover a range of six miles, the resistance of the air is about forty times the weight of the ball—that is, is equivalent to a weight of upwards²¹ of four tons. The range in such a case as this is but a small fraction of that which would be given by the ordinary parabolic theory.

As regards artillery practice in war, there are other difficulties in the attainment of a very extended range. Cannon meant for battering²² down forts cannot possibly be used in the same way that Whitworth’s was used at Shoeburyness. If the shot flung from this gun at an elevation²³ of thirty-three degrees could have been watched, it would have been found that it fell to the237 earth at a much greater angle—that is, much more nearly in a perpendicular²⁴ direction. On the ordinary parabolic theory, of course, the angle of fall would be the same as the angle of elevation, but under actual circumstances there is an important difference. If forts are to be battered²⁵ down, however, it will not serve that they should be struck from above; our artillerists must perforce keep to the old method of pounding away at the face of the forts they attack. Therefore, an elevation which is all very well for mortars—that is, when the question merely is of flinging a bomb into a town or fortress—is utterly²⁶ unsuited for ordinary artillery. With an elevation of ten degrees, Whitworth’s cannon scarcely projected the 250-lb. shot to a distance of three miles.

The progress of the modern science of gunnery certainly tends to increase the distance at which armies will engage each other. With field artillery flinging shot to a distance of two or three miles, and riflemen able to make tolerably sure practice at a distance of three-quarters of a mile, we are not likely often to hear of hand-to-hand conflicts in future warfare²⁷. The use of breech-loaders will also tend to the same effect. Hitherto we have scarcely had experience of the results which these changes are to produce on modern warfare. At Sadowa breech-loaders did not encounter breech-loaders, and it was easy for the victors in that battle to come to close quarters with their enemies. But in a battle where both sides are armed with breech-loaders, we shall probably see another sort of238 affair altogether. The bayonet will be an almost useless addition to the soldier’s arms; a charge of cavalry²⁸ upon well-armed infantry²⁹ will be almost as hopeless as the famous Balaclava charge; and the artillery on either side will have to play a game at long bowls. I venture to anticipate that the first great European war will introduce a total change into the whole system of warlike man?uvres.14

(From the Daily News, November 1868.)

1 artillerist   

炮手，炮兵，炮术家

参考例句：

• The performance that artillerist links began. 炮兵连的表演开始了。

2 cannon   

n.大炮，火炮；飞机上的机关炮

参考例句：

• The soldiers fired the cannon.士兵们开炮。
• The cannon thundered in the hills.大炮在山间轰鸣。

3 attentively   

adv.聚精会神地；周到地；谛；凝神

参考例句：

• She listened attentively while I poured out my problems. 我倾吐心中的烦恼时，她一直在注意听。 来自《简明英汉词典》
• She listened attentively and set down every word he said. 她专心听着，把他说的话一字不漏地记下来。 来自《简明英汉词典》

4 attained   

（通常经过努力）实现( attain的过去式和过去分词 )； 达到； 获得； 达到（某年龄、水平、状况）

参考例句：

• She has attained the degree of Master of Arts. 她已获得文学硕士学位。
• Lu Hsun attained a high position in the republic of letters. 鲁迅在文坛上获得崇高的地位。

5 narrative   

n.叙述，故事；adj.叙事的，故事体的

参考例句：

• He was a writer of great narrative power.他是一位颇有记述能力的作家。
• Neither author was very strong on narrative.两个作者都不是很善于讲故事。

6 obstinately   

ad.固执地，顽固地

参考例句：

• He obstinately asserted that he had done the right thing. 他硬说他做得对。
• Unemployment figures are remaining obstinately high. 失业数字仍然顽固地居高不下。

7 incapable   

adj.无能力的，不能做某事的

参考例句：

• He would be incapable of committing such a cruel deed.他不会做出这么残忍的事。
• Computers are incapable of creative thought.计算机不会创造性地思维。

8 mythical   

adj.神话的；虚构的；想像的

参考例句：

• Undeniably,he is a man of mythical status.不可否认，他是一个神话般的人物。
• Their wealth is merely mythical.他们的财富完全是虚构的。

9 ordnance   

n.大炮，军械

参考例句：

• She worked in an ordnance factory during the war.战争期间她在一家兵工厂工作。
• Shoes and clothing for the army were scarce,ordnance supplies and drugs were scarcer.军队很缺鞋和衣服，武器供应和药品就更少了。

10 artillery   

n.(军)火炮，大炮；炮兵(部队)

参考例句：

• This is a heavy artillery piece.这是一门重炮。
• The artillery has more firepower than the infantry.炮兵火力比步兵大。

11 projectile   

n.投射物，发射体；adj.向前开进的；推进的；抛掷的

参考例句：

• The vertical and horizontal motions of a projectile can be treated independently.抛射体的竖直方向和水平方向的运动能够分开来处理。
• Have you altered the plans of the projectile as the telegram suggests?你已经按照电报的要求修改炮弹图样了吗?

12 contrived   

adj.不自然的，做作的；虚构的

参考例句：

• There was nothing contrived or calculated about what he said.他说的话里没有任何蓄意捏造的成分。
• The plot seems contrived.情节看起来不真实。

13 contrive   

vt.谋划，策划；设法做到；设计，想出

参考例句：

• Can you contrive to be here a little earlier?你能不能早一点来？
• How could you contrive to make such a mess of things?你怎么把事情弄得一团糟呢？

14 attainment   

n.达到，到达；［常pl.］成就，造诣

参考例句：

• We congratulated her upon her attainment to so great an age.我们祝贺她高寿。
• The attainment of the success is not easy.成功的取得并不容易。

15 projectiles   

n.抛射体( projectile的名词复数 )；（炮弹、子弹等）射弹，（火箭等）自动推进的武器

参考例句：

• These differences are connected with the strong absorption of the composite projectiles. 这些差别与复杂的入射粒子的强烈吸收有关。 来自辞典例句
• Projectiles became more important because cannons could now fire balls over hundreds or yards. 抛射体变得更加重要，因为人们已能用大炮把炮弹射到几百码的距离之外。 来自辞典例句

16 spherical   

adj.球形的；球面的

参考例句：

• The Earth is a nearly spherical planet.地球是一个近似球体的行星。
• Many engineers shy away from spherical projection methods.许多工程师对球面投影法有畏难情绪。

17 velocity   

n.速度，速率

参考例句：

• Einstein's theory links energy with mass and velocity of light.爱因斯坦的理论把能量同质量和光速联系起来。
• The velocity of light is about 300000 kilometres per second.光速约为每秒300000公里。

18 insignificant   

adj.无关紧要的，可忽略的，无意义的

参考例句：

• In winter the effect was found to be insignificant.在冬季，这种作用是不明显的。
• This problem was insignificant compared to others she faced.这一问题与她面临的其他问题比较起来算不得什么。

19 inquiry   

n.打听，询问，调查，查问

参考例句：

• Many parents have been pressing for an inquiry into the problem.许多家长迫切要求调查这个问题。
• The field of inquiry has narrowed down to five persons.调查的范围已经缩小到只剩5个人了。

20 hurled   

v.猛投，用力掷( hurl的过去式和过去分词 )；大声叫骂

参考例句：

• He hurled a brick through the window. 他往窗户里扔了块砖。
• The strong wind hurled down bits of the roof. 大风把屋顶的瓦片刮了下来。 来自《简明英汉词典》

21 upwards   

adv.向上，在更高处...以上

参考例句：

• The trend of prices is still upwards.物价的趋向是仍在上涨。
• The smoke rose straight upwards.烟一直向上升。

22 battering   

n.用坏，损坏v.连续猛击( batter的现在分词 )

参考例句：

• The film took a battering from critics in the US. 该影片在美国遭遇到批评家的猛烈抨击。
• He kept battering away at the door. 他接连不断地砸门。 来自《简明英汉词典》

23 elevation   

n.高度；海拔；高地；上升；提高

参考例句：

• The house is at an elevation of 2,000 metres.那幢房子位于海拔两千米的高处。
• His elevation to the position of General Manager was announced yesterday.昨天宣布他晋升总经理职位。

24 perpendicular   

adj.垂直的，直立的；n.垂直线，垂直的位置

参考例句：

• The two lines of bones are set perpendicular to one another.这两排骨头相互垂直。
• The wall is out of the perpendicular.这墙有些倾斜。

25 battered   

adj.磨损的；v.连续猛击；磨损

参考例句：

• He drove up in a battered old car.他开着一辆又老又破的旧车。
• The world was brutally battered but it survived.这个世界遭受了惨重的创伤,但它还是生存下来了。

26 utterly   

adv.完全地，绝对地

参考例句：

• Utterly devoted to the people,he gave his life in saving his patients.他忠于人民，把毕生精力用于挽救患者的生命。
• I was utterly ravished by the way she smiled.她的微笑使我完全陶醉了。

27 warfare   

n.战争(状态)；斗争；冲突

参考例句：

• He addressed the audience on the subject of atomic warfare.他向听众演讲有关原子战争的问题。
• Their struggle consists mainly in peasant guerrilla warfare.他们的斗争主要是农民游击战。

28 cavalry   

n.骑兵；轻装甲部队

参考例句：

• We were taken in flank by a troop of cavalry. 我们翼侧受到一队骑兵的袭击。
• The enemy cavalry rode our men down. 敌人的骑兵撞倒了我们的人。

29 infantry   

n.[总称]步兵(部队)

参考例句：

• The infantry were equipped with flame throwers.步兵都装备有喷火器。
• We have less infantry than the enemy.我们的步兵比敌人少。