London Days: A Book of Reminiscences

by Arthur Warren

LORD KELVIN

He sat on the lower stair, near the front door of his house, making difficult calculations and strange diagrams in a little book bound in green morocco. It would be five minutes before the carriage started, and he recollected that fact just as he reached the door and had put on his overcoat. Another man, almost any other, would have idled while the five minutes passed, and most men, especially busy men, would have fussed nervously at having to wait when they were ready. But Lord Kelvin, being the busiest of men, never wasted time by fussing, and never lost it in idling. Having five minutes he would solve a problem, so he pulled the memorandum book from his coat pocket, where he always carried it, and sat on the stair and worked.

He was seventy then, but his spirits were as young as those of the youngest of his students. They say that a man is as old as his arteries. The saying might have originated with him, if it ever occurred to him that he had arteries. But I am not sure that the customary anatomy was not, in his case, reinforced by an ingenious system of electrical conductors through which a mysterious energy was driven by his dynamic mind. Like all great teachers he was ever learning. But it would be difficult to say when he began to learn, for he was only ten years old when he entered the university! And he was thoroughly equipped for entering upon his student work even at that age. At twenty-two he was appointed Professor of Natural Philosophy, and he held that professorship for the rest of his life!

Lord Kelvin was the greatest master of natural science in the nineteenth century. The twentieth century has not, thus far, produced his superior. He was born in 1824, he died in 1908. It was my privilege to know him during the last fifteen years of his life. A kinder man, one more considerate of the abysmal ignorance of the fellow creatures with whom he came into contact, could not be imagined. He was a plain Scotsman without a pose, without even a Scottish pose, and it would be difficult, maybe impossible, to find a better embodiment of life than that. Scottish he was, though born in Ireland. And his fame was associated with that of Glasgow University which had the honour of receiving him into student life and which received the greater honour of his distinguished services for a period almost as long as the psalmist allots to the life of a man.

When he was eighty-three he outlined, as, probably, he had often outlined before, the plan of a boy's education. "By the age of twelve," said he, "a boy should have learned to write his own language with accuracy and some elegance; he should have a reading knowledge of French, should be able to translate Latin and easy Greek authors, and should have some acquaintance with German. Having learned the meaning of words, a boy should study Logic. I never found that the small amount of Greek I learned was a hindrance to my acquiring some knowledge of Natural Philosophy." Some knowledge of it! There, indeed, was modesty. For who had more knowledge of natural philosophy, or so much, as Lord Kelvin?

Is it necessary to say that he was not born to baronies? Surely, that much all readers may be presumed to know, some wiseacre will remark. But if one were painting a portrait instead of writing it, nothing would be more futile than to omit the subject's nose on the presumption that the public knew he had one. William Thomson, who became Lord Kelvin, was born in Belfast, the younger of two brothers. The elder brother was James, and he became famous as a professor of engineering. He died, however, some fifteen years before his brother. James was named for his father, and that James, the father, was born on a farm near Ballynahinch, County Down. His Scotch ancestors had planted themselves in Ireland in the seventeenth and eighteenth centuries. That farmer's boy had a huge hunger for knowledge. When he was eleven or twelve years old he taught himself, having no teacher to aid him, the principles of the sundial, so that he could make dials for any latitude. Also, from books which he contrived to get, he learned the elements of mathematics. By and by he began teaching in a little school. He taught in the summers, and in the winters he studied at Glasgow University, continuing to do so for five years, and then he was appointed a teacher in the Royal Academic Institute of Belfast. When his son William had reached the age of eight, the scholarly parent was appointed to the Professorship of Mathematics at Glasgow University, a position he held for twenty years. His scientific attainments were high, and his classical scholarship was distinguished. He educated his sons himself, until each was ten, and then sent each to the university. Lord Kelvin said to me once, when we were talking of those early days: "I had a great father."

The Kelvin is a little stream that winds through the grounds of Glasgow University. When Queen Victoria bestowed a peerage upon Sir William Thomson (she had knighted him many years before that) he chose for his title the name of the little stream by whose side he had spent his fruitful and illustrious life. His had been a life of labour, but it had been congenial labour. He had contributed vastly to the sum of human knowledge; he had invented useful things, to the amazement of pedantic men who think that science should remain with scientific persons and never be applied to the wants of the world; at least, not applied by the scientific discoverer of the principles or things. But with all his theories he was a practical man, and he prospered. That day when he sat on the stair for five minutes, and concentrated the training of sixty years upon the page of a notebook, we went to White's.

Once upon a time there was a White, a James White, who, in Glasgow, made instruments of precision which found their way all over the world. And so he became the maker of various things that Sir William Thomson, afterward Lord Kelvin, had invented. When White died, or retired, or possibly before that, Kelvin acquired his business and establishment and continued the manufacture of instruments of precision, the establishment being conducted under White's name, as before, and as possibly it may be to this day. Anyhow, we went to White's, where Lord Kelvin took me into his laboratory and showed me, among other things, his "Siphon Recorder" which was very interesting, albeit very puzzling to the non-technical mind. I asked him what it did. The technical descriptions I had read were rather baffling. His answer was: "The electric current in an under-sea cable, say an Atlantic cable, is very weak and weary. This reaches out from the shore, and helps it along, and writes down what it says." It was for this invention that he was knighted in 1866. He had connected the hemispheres.

He was one of the courageous and hopeful band that laid and worked the first Atlantic cables. Submarine telegraphy had been first employed in 1850 when a line was laid across the English Channel between Dover and Calais. But the scientific camps were divided in opinion about the practicability of working across thousands of miles of ocean-bed. One faction declared it "beyond the resources of human skill." Robert Stephenson said the project could end only in failure. Of course, the moneyed men were timid. Most of them were more than timid; they were scared. Faraday had found that the transmission of signals by submarine cable, on a line from Harwich to Holland, was not instantaneous. "The line leaked," said the financial men, "and most of the electricity that was pumped into it spilled into the sea. This does not occur on land lines," they said; "we will not invest."