||Galileo, that giant
in physical science of the early seventeenth century, died in 1642. On
Christmas day of the same year there was born in England another intellectual
giant who was destined to carry forward the work of Copernicus, Kepler,
and Galileo to a marvellous consummation through the discovery of the great
unifying law in accordance with which the planetary motions are performed.
We refer, of course, to the greatest of English physical scientists, Isaac
Newton, the Shakespeare of the scientific world. Born thus before the middle
of the seventeenth century, Newton lived beyond the first quarter of the
eighteenth (1727). For the last forty years of that period his was the
dominating scientific personality of the world. With full propriety that
time has been spoken of as the "Age of Newton."
Yet the man who was to achieve such distinction
gave no early premonition of future greatness. He was a sickly child from
birth, and a boy of little seeming promise. He was an indifferent student,
yet, on the other hand, he cared little for the common amusements of boyhood.
He early exhibited, however, a taste for mechanical contrivances, and spent
much time in devising windmills, water-clocks, sun-dials, and kites. While
other boys were interested only in having kites that would fly, Newton
- at least so the stories of a later time would have us understand - cared
more for the investigation of the seeming principles involved, or for testing
the best methods of attaching the strings, or the best materials to be
used in construction.
Meanwhile the future philosopher was acquiring
a taste for reading and study, delving into old volumes whenever he found
an opportunity. These habits convinced his relatives that it was useless
to attempt to make a farmer of the youth, as had been their intention.
He was therefore sent back to school, and in the summer of 1661 he matriculated
at Trinity College, Cambridge.
Even at college Newton seems to have shown no unusual mental capacity,
and in 1664, when examined for a scholarship by Dr. Barrow, that gentleman
is said to have formed a poor opinion of the applicant. It is said that
the knowledge of the estimate placed upon his abilities by his instructor
piqued Newton, and led him to take up in earnest the mathematical studies
in which he afterwards attained such distinction. The study of Euclid and
Descartes's "Geometry" roused in him a latent interest in mathematics,
and from that time forward his investigations were carried on with enthusiasm.
In 1667 he was elected Fellow of Trinity College, taking the degree of
M.A. the following spring.
It will thus appear that Newton's boyhood
and early manhood were passed during that troublous time in British political
annals which saw the overthrow of Charles I., the autocracy of Cromwell,
and the eventual restoration of the Stuarts. His
maturer years witnessed the overthrow of the last Stuart and the reign
of the Dutchman, William of Orange. In his old age he saw the first of
the Hanoverians mount the throne of England. Within a decade of his death
such scientific path-finders as Cavendish, Black, and Priestley were born
- men who lived on to the close of the eighteenth century. In a full sense,
then, the age of Newton bridges the gap from that early time of scientific
awakening under Kepler and Galileo to the time which we of the twentieth
century think of as essentially modern.