James Clerk Maxwell (1831 – 1879)
What could be more different than magnetism, electricity, and light? Yet, in the
nineteenth century, James Clerk Maxwell showed that these phenomena were simply
different manifestations of the same fundamental laws. He described all these, as
well as radio waves, radar, and radiant heat, by a unique and elegant system of
equations.1
by Ann Lamont, B.Sc., M.Ed.St.
First published in:
Creation
15(3):45–47
James Clerk Maxwell was born in Edinburgh, Scotland, on June 13, 1831. He was the
only child of John Clerk, an Edinburgh lawyer. Shortly after James’ birth, John
Clerk and his family moved to a country estate at Glenlair, near Edinburgh, which
he inherited from his Maxwell ancestors. At that time, John Clerk adopted the additional
surname Maxwell. The family lived a comfortable, middle-class life.
James’ early education was given by his mother, a dedicated Christian, and included
studying the Bible. James exceptional memory became apparent at this time when he
memorized all of Psalm 119. By the age of 8, James found his toys uninteresting.
He preferred to apply his great curiosity to simple scientific investigations. For
example, he used a tin plate to reflect sunlight, and made observations of the life-cycle
of the frog.
His mother taught him to see God’s scientific genius and compassionate hand in the
beauties of nature. This conviction that there was complete harmony between scientific
investigation and God’s teachings in the Bible had a great influence on James’ life
and work. Sadly, his mother died when he was still only 8. His father then engaged
a tutor for his son.
In 1841, James began formal schooling at the Edinburgh Academy. Poor health frequently
kept him absent, but his academic progress was excellent. His first scientific paper—a
mathematical analysis involving the ellipse—was published when he was only
15.
Prize for research
In 1847, James entered the University of Edinburgh and soon published two more scientific
papers. In 1850, he enrolled at Cambridge University, graduating four years later
with firstclass honours in mathematics. He was also awarded a prestigious prize
for original research in mathematically analyzing the stability of the rings around
Saturn. Maxwell concluded that Saturn’s rings could not be completely solid or fluid.
Instead they must consist of small but separate solid particles—‘a conclusion
that was corroborated more than 100 years later by the first Voyager space probe
to reach Saturn.’2
After graduating, Maxwell joined the staff at Cambridge University, lecturing on
optics and hydrostatics as well as doing research in these areas.
In 1856, he left Cambridge to return to Scotland to be near his father whose health
was failing. His father died before James began his new appointment as Professor
of Physics at Marischal College in Aberdeen. Two years later, Maxwell married Katherine
Mary Dewar, whose father was the principal of Marischal College. James and Katherine
Maxwell’s marriage was happy, but childless.
When Marischal College merged with King’s College, Aberdeen, to become the University
of Aberdeen, Maxwell unsuccessfully applied for a vacancy at the University of Edinburgh.
The successful applicant for that position was Percy Guthrie Tait, a former school-friend
of Maxwell’s. Tait, another committed Christian, also achieved considerable success
in mathematics and physics.
In 1860, Maxwell became Professor of Physics and Astronomy at King’s College in
London. Here he supervised the measurement and standardization of electrical units
for the British Association for the Advancement of Science in 1863.
In 1865, he left London and moved to the estate in Scotland which he had inherited
from his father. Here he devoted himself to his research and writing on electricity
and magnetism. In the year of Maxwell’s birth (1831), famous English physicist Michael
Faraday had invented the electric generator, which used a moving magnet to produce
electricity. He also demonstrated that an electric current produced magnetism. Faraday
was convinced that these electromagnetic forces extended into the space around the
conductor, but he was not able to complete his work in this area. However, Faraday’s
idea of a force field in the surrounding space gave rise to the wider generalization
known as field theory.
Ranked with Newton
Maxwell’s major aim in his research on electricity and magnetism was to produce
the mathematical framework underlying Faraday’s experimental results and his ideas
on field theory. The four mathematical equations Maxwell produced are ranked with
Sir Isaac Newton’s laws of motion and Albert Einstein’s theory of relativity as
the most fundamental contributions to physics.
When Maxwell calculated the speed of electromagnetic waves, he found that their
speed was virtually the same as the speed of light. He concluded that light was
another type of electromagnetic wave. Maxwell proposed that electromagnetic waves
with other wavelengths should exist as well. When German physicist Heinrich Hertz
produced the first man-made radio waves in 1887 (eight years after Maxwell’s death),
Maxwell’s electromagnetic theory was fully confirmed. (Radio waves have longer wavelengths
than visible light.)
The later discovery of X-rays was further confirmation of Maxwell’s predictions.
(X-rays are a form of electromagnetic radiation with ultra-short wavelengths.) Twentieth
century communication technology stems largely from Maxwell’s work. Radio, television,
radar and satellite communication all have their origins in his electromagnetic
theory.
During the 1850s, outstanding mathematical physicist William Thomson had been demonstrating
a common mathematical framework underlying the experimental results in various areas
of physics such as heat, mechanical motion, fluid (gas or liquid) motion, electricity
and magnetism. This constituted a significant theoretical extension of the work
done by previous scientists. Maxwell’s electromagnetic theory linking electromagnetism
with light and later with radio waves was a great contribution to this process of
unifying the theoretical framework in physics.
Maxwell gratefully acknowledged his indebtedness to Thomson who had been his mentor.
(Thomson was later known as Lord Kelvin.)
Maxwell is widely acknowledged as the nineteenth century scientist whose work had
the greatest influence on twentieth century physics. His electromagnetic theory
and its associated field equations ‘paved the way for Einstein’s special theory
of relativity, which established the equivalence of mass and energy. Maxwell’s ideas
also ushered in the other major innovation of 20th century physics, the quantum
theory.’3
In 1840, English physicist James Joule had established a relationship between heat
and mechanical motion. This principle gave rise to the scientific discipline called
thermodynamics, which includes the study of the motion of gas molecules.
Speed Discoveries
In 1848, Joule became the first scientist to estimate the velocity (speed) of gas
molecules. However, Joule treated all molecules as if they travelled at the same
speed. In reality, the velocities of the molecules are not equal. They vary markedly
as a result of collisions with other molecules. By applying the methods of probability
and statistics, Maxwell worked out the most probable distribution of speeds of the
molecules. This distribution is known today as the ‘Maxwell distribution of speeds’.
As a result of his application of statistics, thermodynamics was extended into the
new field of statistical thermodynamics. Maxwell’s introduction of the idea of probability
into physics was probably his most important contribution to physics apart from
his work on electromagnetism.
Maxwell also made significant advances in the area of optics and colour vision.
His research on colour blindness was recognized when he was awarded the Rumford
Medal by the Royal Society of London. Maxwell was one of the first scientists to
demonstrate colour photography. He also undertook research relating to elastic solids
and pure geometry.
Maxwell was elected to the Royal Society in 1861, a prestigious association of scientists,
as a result of his early work on electromagnetism. In 1871, he became professor
of experimental physics at Cambridge University. Here, he supervised the planning
and construction of the Cavendish laboratory, which became a centre renowned for
significant advances in physics.
Refutes Evolutionary Thinking
Maxwell strongly opposed Darwin’s theory of evolution, which was becoming popular
at that time. He believed that the speculations involved in evolutionary thinking
contradicted scientific evidence. In a paper he presented to the British Association
for the Advancement of Science in 1873, he said:
‘No theory of evolution can be formed to account for the similarity of molecules,
for evolution necessarily implies continuous change…. The exact equality
of each molecule to all others of the same kind gives it … the essential
character of a manufactured article, and precludes the idea of its being eternal
and self-existent.’4
Maxwell was able to refute evolutionary thinking in another important way. He mathematically
disproved the nebular hypothesis proposed in 1796 by French atheist, Laplace. Laplace
suggested that the solar system began as a cloud of gas which contracted over millions
of years to produce planets and so on. Laplace claimed there was thus no need for
a Creator. This philosophy was eagerly embraced by the opponents of Christianity.
However, Maxwell demonstrated two major flaws in Laplace’s theory, and proved mathematically
that such a process could not occur. Laplace’s theory was subsequently discarded.
Maxwell was convinced that scientific investigation and the teachings of the Bible
were not only compatible but should be linked together. This was reflected in a
prayer found among his notes: ‘Almighty God, Who hast created man in Thine own image,
and made him a living soul that he might seek after Thee, and have dominion over
Thy creatures, teach us to study the works of Thy hands, that we may subdue the
earth to our use, and strengthen the reason for Thy service; so to receive Thy blessed
Word, that we may believe on Him Whom Thou hast sent, to give us the knowledge of
salvation and the remission of our sins. All of which we ask in the name of the
same Jesus Christ, our Lord.’5
Belief in Genesis and Gospel
In this prayer, Maxwell affirmed his belief in the teachings found in the Book of
Genesis—God is the Creator, who made man in His own image, and gave man control
over and responsibility for the animals. The second part of the prayer contains
the Gospel message—that Jesus Christ was sent by God to save us from our sins.
Maxwell had an extensive knowledge of the Bible, and was an elder of the church
which he helped establish near his home at Glenlair. His Christian commitment was
also very practical. He gave generously of both his time and money. He frequently
visited the sick and those confined to their homes, and he read to them and prayed
with them. He was also modest and displayed absolute integrity.
His compassion and self-sacrificing attitude were clearly evident, as J.G. Crowther
writes in a biography of Maxwell: ‘During the last years of his life, his wife was
an invalid. He nursed her personally with the most assiduous care…. When
the earlier symptoms of his own fatal disease became evident to himself, he told
no one of them for along time. As he grew worse and suffered severe pain he never
complained, except that he would not be able to continue to nurse his sick wife.’6
Maxwell died of abdominal cancer at Cambridge on November 5, 1879, aged 48. He was
greatly respected by those he had known and with whom he had worked. One of his
close colleagues wrote: ‘We his contemporaries at college, have seen in him high
powers of mind and great capacity and original views, conjoined with deep humility
before his God, reverent submission to His will, and hearty belief in the love and
atonement of that Divine Saviour Who was his portion and comforter in trouble and
sickness.’7
References
- S.L. Glashow, The Charm of Physics, American Institute of Physics, New
York N.Y., 1991, p. 239.
- Encyclopaedia Britannica, 1992, vol. 23, p. 686.
- ibid, p. 725.
- J.C. Maxwell, ‘Discourse on Molecules’, a paper presented to the British Association
at Bradford in 1873, as cited in: E.L. Williams and G. Mulfinger, Physical Science
for Christian Schools, Bob Jones University Press, Greenville, South Carolina,
1974, p. 487.
- J.C. Maxwell, in a prayer found among his notes, cited in Williams and Mulfinger
(as above), p. 487.
- J.G. Crowther, British Scientists of the Nineteenth Century, London, Routledge
and Kegan Paul, 1962, p. 313.
- G.W.H. Tayler, quoted in: L. Campbell and W. Garnett, The Life of James Clerk
Maxwell, Macmillan, London, 1882, p. 174.
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