This
is the first volume in a new Cambridge series, “The Evolution of Modern
Philosophy.”It is a historical
work, tracing the interaction between physics and philosophy from the scientific
revolution of the seventeenth century through general relativity and quantum
mechanics in the twentieth century.The
emphasis is on the philosophy in physics (rather than philosophizing
about physics) and, with the exceptions noted below, the focus is on scientists
(scientist-philosophers in many cases) rather than philosophers outside
of science.Most of the book is about
the conceptual and mathematical development of the core branches of physics
(mainly mechanics, but also geometry, thermodynamics, and field theory).There
are seven chapters plus three supplements giving the mathematical essentials
of vector analysis, lattice theory, and topology.
The
hero of chapter one is Galileo who, more than anyone else before Newton,
set physics on its modern path towards mathematization and away from Aristotle.Also
discussed in chapter one are Descartes, Huyghens, and Leibniz.Chapter
two is devoted to Newton (both the foundations of Newtonian mechanics and
the derivation of the law of universal gravitation) and follows the development
of analytical mechanics up to Lagrange and Hamilton.Chapter
three, appropriately entitled “Kant,” is the only chapter devoted to a
philosopher.After a brief discussion
of Leibniz, Berkeley, and Kant’s pre-critical writings, it covers the important
scientific topics in the Critique of Pure Reason (space, time, the
three Analogies) but avoids the Metaphysical Foundations of Natural
Science (referring the reader to Michael Friedman’s Kant and the
Exact Sciences).Chapter four
looks at scientific developments in three areas that proved to be important
for twentieth-century physics: non-Euclidean geometry from Lobachevsky
to Riemann, electromagnetic field theory (Maxwell), and thermal physics
(classical thermodynamics, the kinetic theory, and statistical mechanics)
from Carnot to Boltzmann. The chapter concludes, somewhat untidily, with
a section on four philosophers of science (Whewell, Peirce, Mach, and Duhem)
selected, we are told, because of their influence on philosophy of science
in the second half of the twentieth century. (For the “two great philosopher-scientists”
Helmholtz and Poincaré, the reader is referred to Torretti’s earlier
books, Philosophy of Geometry from Riemann to Poincaré, and
Relativity
and Geometry.)Chapter five covers
both the special and general theory of relativity. After a masterful exposition
of the special theory and its Minkowski spacetime representation, the usual
topics of philosophical interest are discussed; these include the conventionality
of simultaneity thesis, the twin paradox, the relativistic concept of mass,
and determinism.The rather brief
treatment of the general theory is, unavoidably,mathematically
demanding and carries the subject through to recent inflationary cosmological
models.Chapter six (also mathematically
demanding at times) examines the development and structure of quantum mechanics,
aptly praised as “one of the most elegant creations of the human spirit.”
(340)Torretti wisely ignores the
complexities of quantum field theory since the philosophical problems discussed—measurement,
the EPR paradox, the interpretation of the y-function—remain
when quantum mechanics is made Lorentz invariant; but he urges philosophers
of science to follow the lead of Michael Redhead and Paul Teller in exploring
its metaphysical ramifications.Ofspecial
note are the author’s trenchant criticisms of attempts to solve the quantum
mysteries by Bohr (complementarity), Bohm (hidden variables), Putnam (quantum
logic), and Everett (the many worlds interpretation). The book concludes
withthe author’s reflections on
issues in the philosophy of science.Torretti
defends the structuralist explication of physical theories (more familiarly
known as the semantic conception or the model-theoretic view) that informs
much of his book, arguing that it succeeds where the “received view” of
logical empiricism failed while avoiding Kuhnian incommensurability—“a
pseudoproblem that made philosophy of science the laughing stock of practicing
physicists.” (404)The chapter ends
with an attack on inductive logic: “one of the blindest alleys in twentieth-century
philosophy.” (437)
The
writing is admirably clear and the author has done a commendable job of
explaining the arguments ofhistorical
scientists while presenting their theories in a clear modern notation.Inevitably,
some of the mathematics will daunt readers whose background extends no
further than high school but the formalism is used judiciously and to good
purpose.In short, this is an excellent
book: lucid, comprehensive, and reliable.As
far as I can tell, it gets the science right and its treatment of philosophers
and the philosophical views of scientists is enlightening and, at times,
refreshingly critical.Given its
scope and level of detail, both scientific and philosophical, it has no
competitor.It is highly recommended
to anyone interested in the history or the philosophy of modern physics.
Purdue
UniversityMARTIN
CURD