By CLARENCE COOK

(Born 1847)

[Illustration: Thomas Alva Edison.]

As someone has called Leonardo da Vinci "the great Italian Yankee,"

because of his multifarious and ingenious suggestions in the world

of material things, so our own Edison may be called "the Yankee

Leonardo," for, with a curiosity ranging over the whole world of

nature, equal to that of the Italian, and with a fecundity of

invention no less bewildering, he unites, like Leonardo, an

imaginative and poetical vein that lifts his devices into the domain

of Art.

Yet Edison is in no respect a graceful or romantic figure such as

Leonardo was. He reminds us rather, by the weird and cosmic nature

of his speculations and inventions, of some one of the beings

created by the Norse mythologists: a nineteenth century gnome,

rough, shaggy, uncouth, wholly absorbed in his search among the

secrets of nature, and, while working always for the good of

mankind, dwelling in a world apart, and with neither time nor

inclination to mix in human affairs.

Thomas Alva Edison was born at Milan, Erie County, O., February 11,

1847. He started in life hampered by poverty, by want of teaching

and training, without friends outside his own home circle to

encourage him in pushing his fortunes, and with small opportunity,

in the little village where his lot had been cast, for bettering his

condition. On his father's side he came of sturdy Dutch stock: the

old man, who was still living in 1879 at the age of seventy-four,

reckoned among his immediate ancestors one who lived to be one

hundred and two years old, and another who reached one hundred and

three. He would appear to have been, like pioneers in general,

ready, if not obliged, to turn his hand to any employment that might

yield a living, that must be scanty at the best; and we read of him

as in turn a tailor, a nurseryman, a dealer, first in grain and then

in lumber, and an agent for the sale of farm-lands. He seems to have

been unable to do much for his boy beyond teaching him to read and

write, stimulating his taste for reading by paying him small sums of

money for every book he read through; he had no need to insist that

the reading should be done thoroughly, for it was the boy's way to

do thoroughly everything he undertook. His mother, also, helped

Thomas in learning: she was of Scotch extraction; but, though her

parents were from the old country, she herself was born in

Massachusetts, where for a time she had been a school-teacher. This,

then, with the exception of two months at the village school, was

the limit of young Edison's education--to use the conventional

term. The world was now to take him in hand, and show what it could

do with material so unpromising.

Before he was twelve years old, the boy had found a place as newsboy

on the Grand Trunk Line running to Detroit. In the intervals between

his raids upon the helpless passengers with his newspapers,

periodicals, novels, and candies, he kept up the habit of reading,

and by practice acquired a remarkably clear and finished

handwriting. His next step was to secure the sole right of selling

newspapers on the train, and he soon had four boys under him to

assist him in the work. Having then bought a lot of old type from

some printing-office, he rigged up a rude frame in one of the

baggage-cars that served as a lumber-room, and then proceeded to set

up and print a newspaper which he called the _Grand Trunk Herald_,

and sold with the other newspapers. As he had no press, he was

obliged to take off the impressions by rubbing the paper on the

inked type with his hands. In some way, a copy of this newspaper

found its way to the _London Times_, and the editor spoke of it as

the only newspaper in the world printed on a moving train. During

the fighting at Pittsburgh Landing in 1862, Edison printed off

abstracts of the telegraphic news, and posted them up at the small

country stations, thus rendering a great service to the people

anxiously waiting for news from the field. The terminus of his train

was Detroit, and here, for the first time, he had access to a

library. In his enthusiasm at finding himself in virtual possession

of such a treasure, he determined, then and there, to read the whole

library through, as it stood, using his time between trains.

Beginning at one shelf he read fifteen feet in a line, going through

each book solidly from cover to cover. In this first bout, among

other books, he read Newton's "Principia," Ure's "Scientific

Dictionary," and Burton's "Anatomy of Melancholy."

All this time, by hints and suggestions, Nature had been pushing the

youth toward the field he was finally to occupy almost by right of

eminent domain. As yet, telegraphy was in its infancy, and the

powers of electricity only beginning to be known. Edison had from

the first been interested in the workings of the telegraph line

along the railroad, and had made some experiments with a rude line

of his own, connecting his father's home at Port Huron--a village to

which the family had some time before removed from Milan--with the

house of a neighbor. To do this, he had to make a battery out of

odds and ends, old bottles, stove-pipe wire, and nails made out of

zinc contributed by his youthful friends, who in their zeal cut

pieces out of the zinc mats under their mothers' stoves. He had no

one to teach him telegraphy, but an accident--if accidents there

be--was unexpectedly to put him in the way of learning its secrets.

The child of the station-master was in danger from a moving train;

young Edison snatched it up and saved its life at the risk of his

own, and the grateful father rewarded him by teaching him what he

knew of telegraphy.

Armed with this rudimentary knowledge, and with what, in addition, he

had learned by practice, Edison passed the next few years of his life

in moving about over the country, seeking employment less, it would

appear, for the sake of employment than for the opportunity of

increasing his practical knowledge of the art that was to swallow up,

in his mind, all the other arts. But he seems to have succeeded almost

in spite of himself. He was so eager in his chase after knowledge that

he was continually tripping himself up. While still at his trade of

newsboy on the Grand Trunk Railroad, he had come across, at Detroit

probably, a copy of Fresenius' "Qualitative Analysis" and had become

so much interested in chemistry, that alongside his printing-press he

had fitted up a small laboratory with a chance-medley apparatus for

experiments, and one day a bottle of phosphorus was upset, and the car

taking fire was only saved by the energy of the conductor, who

promptly pitched the whole apparatus, with the printing-press to boot,

out at the door, and then gave the young Fresenius-Franklin a

thrashing. Later we hear of him, in the course of his wanderings, set

to watch a telegraph-machine in the absence of the operator, and to

prove that he was on guard he was to send the word six over the line

every half-hour. Not to be interrupted in the book he was reading, he

contrived a device that did the work automatically. In another office

he kept back messages while he was contriving a way to send them more

quickly! Disappearing from this office, he appears again in another,

this time in Memphis, Tenn. But his interest in solving the problem of

duplicate transmission proved so absorbing that he continually

neglected his duties, and on the occasion of a change of officers he

was dismissed as a useless member of the staff. At Louisville he

upsets a carboy of sulphuric acid which ruins the handsome furniture

of a broker's office on the floor below, and again finds himself

adrift in an unappreciative world. Yet he had proved himself, in spite

of all drawbacks, an adept of uncommon skill in telegraphy; and so

widespread in scientific circles was his reputation, that he was sent

for to Boston to take charge of the main New York wire. The impression

made by the records of his life at this time is, that he looked upon

all these employments merely as so many opportunities for earning his

bread while pursuing his beloved experiments, and that the

bread-earning was the least important part of the affair. No doubt, he

always meant to do his duty, but the ecstasy of invention and the

thirst for discovery carried him out of himself and made him often

oblivious of sublunary things. While in Boston he still kept up his

experiments and perfected his duplex telegraph, but it was not brought

into successful operation until 1872.

In 1871 he came to New York, and having attracted the attention of

the Stock Exchange by some ingenious suggestions put forth while

busied in repairing the machine that recorded quotations, he was

made Superintendent of the Gold and Stock Company, and brought out

his invention of the printing-telegraph, by which the fluctuations

of the stock-market in any part of the country are instantly

recorded on narrow strips of paper.

[Illustration: Thomas A. Edison--The Wizard of Menlo Park.]

The immediate success of this invention, and the great demand for

the machines, led him to establish a workshop for their manufacture

in Newark, N. J. But soon the need of still more space, and the

desire for freedom from interruption while at his work, obliged him

to give up Newark, and he found new quarters at Menlo Park, N. J.--a

bare plot of barren acres destitute of natural attraction of any

kind, unless it be--what to Edison indeed is a great charm--an

uninterrupted view of the sky; a place virtually unknown before he

planted there the rude buildings that house his wonderful

inventions; yet now a place known to scientific men all over the

world; the Mecca of many a mind seeking to wrest from Nature her

dearest secrets.

No doubt, many of the inventions that have made Edison famous must

be ascribed in their conception and ripening' to various periods of

his life, but to the popular mind they are all associated with the

wizard's present home, from whence for several years the bulletins

of inventions--playful, useful, necessary, revolutionary--often as

simple in their mechanism as they are astonishing in their results,

have been given to a delighted world. Some of Edison's inventions

have a character at present of little more than picturesque

playfulness, such as the Phonograph, perhaps the most remarkable of

these minor inventions; the Aerophone, by which sounds are amplified

without loss of distinctness; the Megaphone, an instrument which,

inserted in the ear, so magnifies sounds that faint whispers may be

heard a thousand feet; the Phonometer, for measuring the force of

the soundwaves caused by the human voice; the Microtasimeter, for

measuring small variations in temperature. This has been tested for

so small a variation as 1/24000 of a degree Fahrenheit, and in 1878

was used to detect the presence of heat in the sun's corona. The

most familiar of these lesser inventions is the Phonograph by which

sounds are made self-recording and capable of being repeated. While

this curious invention--almost childish in its simplicity--is as yet

little more than a plaything, and has proved of small utility, it

makes, nevertheless, a strong appeal to the imagination when we

reflect that by its aid the voice of any human being may be

transmitted to ages far in the future, and its living tones be heard

long after he who uttered them has returned to the dust.

But, while these inventions have the charm that invests "the

fairy-tales of science," the world-wide fame of Edison rests upon

greater gifts to the world; the various improvements he has made in

the telegraph, and the perfection to which he has brought the

electric light. The invention of the telephone, by which persons are

enabled to converse with one another at very long distances, and by

which concerts, operas, and orations or sermons in one city can be

heard by an audience assembled in another, is one of the most

remarkable of Edison's achievements, and one the usefulness of which

in various directions it is easy to foresee. The idea of the

transmission of messages in opposite directions by the same wire was

one that had early occurred to Edison, but he was long in reducing

it to practice. The secret once discovered, however, he rapidly

progressed until he had brought out the sextuple telegraph, where we

believe the ability of the instrument rests at present.

The inventor next turned his mind to the study of the electric lamp,

in which he saw great possibilities. He believed that he could

produce a light that should be cheaper than gas, and also purer,

more steady, and more to be depended on. He rejected the principle

of the Voltaic arc involved in the Brush patent then in use, by

which the electric current was passed through a strip of platinum or

other metal that requires a high temperature to melt, because in

practice it was found that in fact, owing to the difficulty of

regulating the flow of the electric current, the medium did often

melt. He therefore sought for a medium that should be practically

indestructible, and believed that it would be found in pure carbon

enclosed in a vacuum. After many trials with one and another

substance, he at length found that by employing slender strips of

card-board reduced by intense heat to carbon, connecting them with

the wires leading from the machine, and enclosing them in glass

bulbs from which the air had been extracted, the desired result

could be produced. The next step to accomplish was the division of

the light, so that any number of lamps could be supplied by the same

pair of wires--a condition absolutely necessary if the invention

were to be of practical utility as applied to the lighting of

factories, public buildings, or private households, where-ever, in

short, many lights are needed. This was finally accomplished, and in

December, 1879, an exhibition was given at Menlo Park of a complete

system of lighting. This first demonstration of the possibility of

light-division created a great interest in scientific circles all

over the world, especially as scientific experts had testified

before the British House of Commons that the feat was impossible.

The Edison incandescent burner is now in use in every city, town,

and hamlet in this country, and it would seem as if it must of

necessity before long drive the costly, unhealthy, and dangerous

coal-gas out of use for illuminating purposes, although we believe a

wide field of usefulness lies before the coal-gas as a substitute

for coal in our kitchens.

Thomas Edison has received few public honors from his countrymen;

but the nature of his work has been such as to make his name a

household word throughout his native country; and not only by the

admiration excited by his genius--for it deserves no less a

name--but by the practical, every-day benefits he has conferred, he

has earned a place in the good-will and esteem of his fellows such

as seldom falls to the lot of man.

[Signature: Clarence Cook.]

Great Men and Famous Women. Vol. 6 A series of pen and pencil sketches of the lives of more than 200 of the most prominent personages in History · 第 75 / 76 题