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Michael Faraday
Michael Faradayполная версия

Полная версия

Michael Faraday

Язык: Английский
Год издания: 2017
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For year after year the life of Faraday afforded no adventure and little variety, only an ever-growing skill in his favourite pursuit, higher and higher success, and ever-widening fame. But simple as were his mind and his habits, no one picture can present him as the complete man; we must try to make sketches from various points of view, and leave it to the reader's imagination to combine them.

Let us watch him on an ordinary day. After eight hours' sleep, he rises in time to breakfast at eight o'clock, goes round the Institution to see that all is in order, and descends into the laboratory, puts on a large white apron, the stains and holes in which tell of previous service, and is busy among his pieces of apparatus. The faithful Anderson, an old soldier, who always did exactly what he was told, and nothing more,5 is waiting upon him; and as thought flashes after thought through his eager – perhaps impatient – brain, he twists his wires into new shapes, and re-arranges his magnets and batteries. Then some conclusion is arrived at which lights up his face with a gleam of satisfaction, but the next minute a doubt comes across that expressive brow – may the results not be due to something else yet imperfectly conceived? – and a new experiment must be devised to answer that. In the meantime perhaps one of his little nieces has been left in his charge. She sits as quiet as a mouse with her needlework; but now and then he gives her a nod, or a kind word, and throwing a little piece of potassium on to a basin of water for her amusement, he shows her the metal bursting into purple flame, floating about in fiery eddies, and the crack of the fused globule of potash at the end. Presently there is handed to him the card of some foreign savant, who makes his pilgrimage to the famous Institution and its presiding genius; he puts down his last result on a slate, comes upstairs, and, disregarding the interruption, chats with his visitor with all cordiality and openness. Then to work again till dinner-time, at half-past two. In the afternoon he retires to his study with its plain furniture and the india-rubber tree in the window, and writes a letter full of affection to some friend, after which he goes off to the council meeting of one of the learned bodies. Then back again to the laboratory, but as evening approaches he goes upstairs to his wife and niece, and then there is a game at bagatelle or acting charades; and afterwards he will read aloud from Shakspeare or Macaulay till it is time for supper and the simple family worship which now is not liable to the interruptions that generally prevent it in the morning. And so the day closes.

Or if it be a fine summer evening, he takes a stroll with his wife and the little girl to the Zoological Gardens, and looks at all the new arrivals, but especially the monkeys, laughing at their tricks till the tears run down his cheeks.

But should it be a Friday evening, Faraday's place is in the library and theatre of the Institution, to see that all is right and ready, to say an encouraging word to the lecturer, and to welcome his friends as they arrive; then taking his seat on the front bench near the right hand of the speaker, he listens with an animated countenance to his story,6 sometimes bending forwards, and scarcely capable of keeping his fingers off the apparatus – not at all able if anything seems to be going wrong; when the discourse is over, a warm shake of the hand, with "Thank you for a pleasant hour," and "Good night" to those around him, and upstairs with his wife and some particularly congenial friends to supper. On the dining-table is abundance of good fare and good wine, and around it flows a pleasant stream of lively and intellectual conversation.

But suppose it is his own night to lecture. The subject has been carefully considered, an outline of his discourse has been written on a sheet of foolscap, with all the experiments marked and numbered, and during the morning everything has been arranged on the table in such order that his memory is assisted by it; the audience now pours in, and soon occupies all the seats, so that late comers must be content with sitting on the stairs or standing in the gangways, or at the back of the gallery. Faraday enters, and placing himself in the centre of the horse-shoe table, perfect master of himself, his apparatus, and his audience, commences a discourse which few that are present will ever forget. Here is a picture by Lady Pollock: – "It was an irresistible eloquence, which compelled attention and insisted upon sympathy. It waked the young from their visions, and the old from their dreams. There was a gleaming in his eyes which no painter could copy, and which no poet could describe. Their radiance seemed to send a strange light into the very heart of his congregation; and when he spoke, it was felt that the stir of his voice and the fervour of his words could belong only to the owner of those kindling eyes. His thought was rapid, and made itself a way in new phrases – if it found none ready made – as the mountaineer cuts steps in the most hazardous ascent with his own axe. His enthusiasm sometimes carried him to the point of ecstasy when he expatiated on the beauties of Nature, and when he lifted the veil from her deep mysteries. His body then took motion from his mind; his hair streamed out from his head; his hands were full of nervous action; his light, lithe body seemed to quiver with its eager life. His audience took fire with him, and every face was flushed. Whatever might be the after-thought or the after-pursuit, each hearer for the time shared his zeal and his delight."7

Is it possible that he can be happier when lecturing to the juveniles? The front rows are filled with the young people; behind them are ranged older friends and many of his brother philosophers, and there is old Sir James South, who is quite deaf, poor man, but has come, as he says, because he likes to see the happy faces of the children. How perfect is the attention! Faraday, with a beaming countenance, begins with something about a candle or a kettle that most boys and girls know, then rises to what they had never thought of before, but which now is as clear as possible to their understandings. And with what delight does he watch the performances of Nature in his experiments! One could fancy that he had never seen the experiments before, and that he was about to clap his hands with boyish glee at the unexpected result! Then with serious face the lecturer makes some incidental remark that goes far beyond natural philosophy, and is a lesson for life.

Some will remember one of these occasions which forms the subject of a painting by Mr. Blaikley. Within the circle of the table stands the lecturer, and waiting behind is the trusty Anderson, while the chair is occupied by the Prince Consort, and beside him are the young Prince of Wales and his brother, the present Duke of Edinburgh; while the Rev. John Barlow and Dr. Bence Jones sit on the left of the Princes; Sir James South stands against the door, and Murchison, De La Rue, Mrs. Faraday, and others may be recognized among the eager audience.

Let us now suppose that it is a Sunday on which we are watching this prince among the aristocracy of intellect, and we will assume it to be during one of the periods of his eldership, namely between 1840 and 1844, or after 1860. The first period came to a close through his separation both from his office and from the Church itself. The reason of this is unknown except to the parties immediately concerned, but it will be readily understood how easily differences may arise in such a community as that of the Sandemanians between an original and conscientious mind and his brethren in the faith. He, however, continued to worship among his friends, and was after a while restored to the rights of membership, and eventually to the office of elder. In the morning he and his family group find their way down to the plain little meeting-house in Paul's Alley, Red-cross Street, since pulled down to make room for the Metropolitan Railway. The day's proceedings commence with a prayer meeting, during which the worshippers gradually drop in and go to their accustomed seats, Faraday taking his place on the platform devoted to the elders: then the more public service begins; one of a metrical but not rhyming version of the Psalms is sung to a quaint old tune; the Lord's Prayer and another psalm follow; he rises and reads in a slow, reverent manner the words of one of the Evangelists, with a most profound and intelligent appreciation of their meaning; or he offers an extempore prayer, expressing perfect trust and submission to God's will, with deep humility and confession of sin. It may be his turn to preach. On two sides of a card he has previously sketched out his sermon with the illustrative texts, but the congregation does not see the card, only a little Bible in his hand, the pages of which he turns quickly over, as, fresh from an earnest heart, there flows a discourse full of devout thought, clothed largely in the language of Scripture. After a loud simultaneous "Amen" has closed the service, the Church members withdraw to their common meal, the feast of charity; and in the afternoon there is another service, ending by invariable custom with the Lord's Supper. The family group do not reach home till half-past 5; then there is a quiet evening, part of which is spent by Faraday at his desk, and they retire to rest at an early hour.

Again on Wednesday evening he is among the little flock. The service is somewhat freer, for not the officers of the Church only, but the ordinary members are encouraged to express whatever thoughts occur to them, so as to edify one another. At these times, Faraday, especially when he was not an elder, very often had some word of exhortation, and the warmth of his temperament would make itself felt, for he was known in the small community as an experimental rather than a doctrinal preacher.

The notes of his more formal discourses which I have had the opportunity of seeing, indicate, as might be expected from the tenets of his Church, a large acquaintance with the words of Scripture, but no knowledge of modern exegesis. They appear to have impressed different hearers in different ways. One who heard him frequently and was strongly attached to him, says that his sermons were too parenthetical and rapid in their delivery, with little variety or attractiveness; but another scientific friend, who heard him occasionally, writes: "They struck me as resembling a mosaic work of texts. At first you could hardly understand their juxtaposition and relationship, but as the well-chosen pieces were filled in, by degrees their congruity and fitness became developed, and at last an amazing sense of the power and beauty of the whole filled one's thoughts at the close of the discourse."

His first sermon as an elder was on Christ's character and example as shown in Matthew xi. 28-30: "Learn of me; for I am meek and lowly in heart." Among the latest of his sermons was one that he preached at Dundee about four years before his death. He began by telling his audience that his memory was failing, and he feared he could not quote Scripture with perfect accuracy; and then, as said one of the elders who had been present, "his face shone like the face of an angel," as he poured forth the words of loving exhortation.

When a mind is stretched in the same direction week-day and Sunday, the tension is apt to become too great. With Faraday the first symptom was loss of memory. Then his devoted wife had to hurry him off to the country for rest of brain. Once he had to give up work almost entirely for a twelvemonth. During this time he travelled in Switzerland, and extracts from his diary are given by Bence Jones. His niece, Mrs. Deacon, gives us her recollections of a month spent at Walmer: – "How I rejoiced to be allowed to go there with him! We went on the outside of the coach, in his favourite seat behind the driver. When we reached Shooter's Hill, he was full of fun about Falstaff and the men in buckram, and not a sight nor a sound of interest escaped his quick eye and ear. At Walmer we had a cottage in a field, and my uncle was delighted because a window looked directly into a blackbird's nest built in a cherry-tree. He would go many times in a day to watch the parent birds feeding their young. I remember, too, how much he was interested in the young lambs, after they were sheared at our door, vainly trying to find their own mothers. The ewes, not knowing their shorn lambs, did not make the customary signal. In those days I was eager to see the sun rise, and my uncle desired me always to call him when I was awake. So, as soon as the glow brightened over Pegwell Bay, I stole downstairs and tapped at his door, and he would rise, and a great treat it was to watch the glorious sight with him. How delightful, too, to be his companion at sunset! Once I remember well how we watched the fading light from a hill clothed with wild flowers, and how, as twilight stole on, the sounds of bells from Upper Deal broke upon our ears, and how he watched till all was grey. At such times he would be well pleased if we could repeat a few lines descriptive of his feelings." And then she tells us about their examining the flowers in the fields by the aid of "Galpin's Botany," and how with a candle he showed her a spectre on the white mist outside the window; of reading lessons that ended in laughter, and of sea-anemones and hermit crabs, with the merriment caused by their odd movements as they dragged about the unwieldy shells they tenanted. "But of all things I used to like to hear him read 'Childe Harold;' and never shall I forget the way in which he read the description of the storm on Lake Leman. He took great pleasure in Byron, and Coleridge's 'Hymn to Mont Blanc' delighted him. When anything touched his feelings as he read – and it happened not unfrequently – he would show it not only in his voice, but by tears in his eyes also."

A few days at Brighton refreshed him for his work. He was in the habit of running down there before his juvenile lectures at Christmas, and at Easter he frequently sought the same sea-breezes.

But it was not always that Faraday could run away from London when the mental tension became excessive. A shorter relaxation was procured by his taking up a novel such as "Ivanhoe," or "Jane Eyre," or "Monte Christo." He liked the stirring ones best, "a story with a thread to it." Or he would go with his wife to see Kean act, or hear Jenny Lind sing, or perhaps to witness the performance of some "Wizard of the North."

Now and then he would pay a visit to some scene of early days. One of his near relatives tells me: "It is said that Mr. Faraday once went to the shop where his father had formerly been employed as a blacksmith, and asked to be allowed to look over the place. When he got to a part of the premises at which there was an opening into the lower workshop, he stopped and said: 'I very nearly lost my life there once. I was playing in the upper room at pitching halfpence into a pint pot close by this hole, and having succeeded at a certain distance, I stepped back to try my fortune further off, forgetting the aperture, and down I fell; and if it had not been that my father was working over an anvil fixed just below, I should have fallen on it, broken my back, and probably killed myself. As it was, my father's back just saved mine.'"

Business, as well as pleasure, sometimes took him away from home. He often joined the British Association, returning usually on Saturday, that he might be among his own people on the Lord's Day. During the meeting he would generally accept the hospitality of some friend; and it was one of these occasions that gave rise to the following jeu d'esprit: —

"'That P will change to F in the British tongue is true(Quoth Professor Phillips), though the instances are few;'An entry in my journal then I ventured thus to parody,'I this day dined with Fillips, where I hobbed and nobbed with Pharaday.'"T. T."Oxford, June 27, 1860."

At the Liverpool meeting, in 1837, he was president of the Chemical Section, and on two other occasions he was selected to deliver the evening lecture, but though repeatedly pressed to undertake the presidency of the whole body, he could not be prevailed upon to accept the office.

My first personal intercourse with him, of any extent, was at the Ipswich meeting in 1851. I watched him with all the interest of an admiring disciple, and there is deeply engraven on my memory the vivacity of his conversation, the eagerness with which he entered into some mathematico-chemical speculations of Dumas, and the playfulness with which, when we were dining together, he cut boomerangs out of card, and shot them across the table at his friends.

Professional engagements also took him not unfrequently into the country. Some of these will be described in the later sections, that treat of his mode of working and its valuable results.

To comprehend a man's life it is necessary to know not merely what he does, but also what he purposely leaves undone. There is a limit to the work that can be got out of a human body or a human brain, and he is a wise man who wastes no energy on pursuits for which he is not fitted; and he is still wiser who, from among the things that he can do well, chooses and resolutely follows the best.

Faraday took no part in any of the political or social movements of his time. To politics indeed he seems to have been really indifferent. It was during the intensely interesting period of 1814-15 that he was on the Continent with Davy, but he alludes to the taking of Paris by the allied troops simply because of its bearing on the movements of the travellers, and on March 7, 1815, he made his remarkable entry in his journal: "I heard for news that Bonaparte was again at liberty. Being no politician, I did not trouble myself much about it, though I suppose it will have a strong influence on the affairs of Europe." In later days he seems to have awaked to sufficient interest to read the debates, and to show a Conservative tendency; he became a special constable in 1848, and was disposed generally to support "the powers that be," – though that involved some perplexity at a change of Government.

It is more singular that a man of his benevolent spirit should never have taken a prominent part in any philanthropic movement. In some cases his religious views may have presented an obstacle, but this reason can hardly apply to many of those social movements in which the influence of his name, and his occasional presence and advice, would have been highly valuable. During the latter half of his life, he, as a rule, avoided serving on committees even for scientific objects, and was reluctant to hold office in the learned societies with which he was connected. I believe, however, that this arose not so much from want of interest, as from a conviction that he was ill-suited by natural temperament for joining in discussions on subjects that roused the passions of men, or for calmly weighing the different courses of action, and deciding which was the most judicious. It is remarkable how little even of his scientific work was done in conjunction with others. Neither did he spend time in rural occupations, or in literary or artistic pursuits. Beasts and birds and flowers he looked at, but it was for recreation, not for study. Music he was fond of, and occasionally he visited the Opera, but he did not allow sweet sounds to charm him away from his work. He stuck closely to his fireside, his laboratory, his lecture table, and his church. He lived where he worked, so that he had only to go downstairs to put to the test of experiment any fresh thought that flitted across his brain. He almost invariably declined dinner-parties, except at Lady Davy's, and at Mr. and Mrs. Masquerier's at Brighton, towards whom he felt under an obligation on account of former kindnesses. If he went to a soirée, he usually stayed but a short time; and even when away from home he generally refused private hospitality. Thus he was able to give almost undivided attention to the chief pursuit of his life.

His residence in so accessible a part of London did, however, expose him to the constant invasion of callers, and his own good nature often rendered fruitless the efforts that were considerately made to restrict these within reasonable limits. Of course he suffered from the curious and the inconsiderate of the human species; and then there were those pertinacious bores, the dabblers in science. "One morning a young man called on him, and with an air of great importance confided to him the result of some original researches (so he deemed them) in electrical philosophy. 'And pray,' asked the Professor, taking down a volume of Rees' Cyclopædia, 'did you consult this or any elementary work to learn whether your discovery had been anticipated?' The young man replied in the negative. 'Then why do you come to waste my time about well-known facts, that were published forty years ago?' 'Sir,' said the visitor, 'I thought I had better bring the matter to head-quarters immediately.' 'All very well for you, but not so well for head-quarters,' replied the Professor, sharply, and set him down to read the article."

"A grave, elderly gentleman once waited upon him to submit to his notice 'a new law of physics.' The visitor requested that a jug of water and a tumbler might be brought, and then producing a cork, 'You will be pleased to observe,' said he, 'how persistently this cork clings to the side of the glass when the vessel is half filled.' 'Just so,' replied the Professor. 'But now,' resumed this great discoverer, 'mark what happens when I fill the tumbler to the brim. There! you see the cork flies to the centre – positively repelled by the sides!' 'Precisely so,' replied the amused electrician, with the air of a man who felt perfectly at home with the phenomenon, and indeed regarded it quite as an old friend. The visitor was evidently disconcerted. 'Pray how long have you known this?' he ventured to ask Faraday. 'Oh, ever since I was a boy,' was the rejoinder. Crestfallen – his discovery demolished in a moment – the poor gentleman was retiring with many apologies, when the Professor, sincerely concerned at his disappointment, comforted him by suggesting that possibly he might some day alight upon something really new."8

But there were other visitors who were right welcome to a portion of his time. One day it might be a young man, whom a few kind words and a little attention on the part of the great philosopher would send forward on the journey of life with new energy and hopes. Another day it might be some intellectual chieftain, who could meet the prince of experimenters on equal terms. But these are hardly to be regarded as interruptions; – rather as a part of his chosen work.

Here is one instance in the words of Mr. Robert Mallet. "… I was, in the years that followed, never in London without paying him a visit, and on one of those times I ventured to ask him (if not too much engaged) to let me see where he and Davy had worked together. With the most simple graciousness he brought me through the whole of the Royal Institution, Albemarle Street. Brande's furnaces, Davy's battery, the place in the laboratory where he told me he had first observed the liquefaction of chlorine, are all vividly before me – but nothing so clear or vivid as our conversation over a specimen of green (crown) glass, partially devitrified in floating opaque white spheres of radiating crystals: he touched luminously on the obscure relation of the vitreous and crystalloid states, and on the probable nature of the nuclei of the white spheres. My next visit to Faraday that I recollect was not long after my paper 'On the Dynamics of Earthquakes' had appeared in the Transactions of the Royal Irish Academy. He almost at once referred to it in terms of praise that seemed to me so far beyond my due, that even now I recall the very humble way I felt, as the thought of Faraday's own transcendent merits rushed across my mind. I ventured to ask him, had the paper engaged his attention sufficiently that I might ask him – did he consider my explanation of the before supposed vorticose shock sufficient? To my amazement he at once recited nearly word for word the paragraph in which I took some pains to put my views into a demonstrative shape, and ended with, 'It is as plain and certain as a proposition of Euclid!' And yet the subject was one pretty wide away from his own objects of study."

Often, too, if some interesting fact was exhibited to him, he would send to his brother savants some such note as this: —

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