178
REVIEW
OF WEYRAUCH
I
Doc. 30
Review
of
J. J.
WEYRAUCH,
An
Outline
of
the
Theory
of
Heat.
With
Numerous Examples
and
Applications.
Part
1
(Grundriss
der
Warmetheorie.
Mit
zahlreichen
Beispielen und
Anwendungen.
Stuttgart:
K.
Wittwer,
1905.
131
pp.)
[Beiblatter
zu
den
Annalen
der
Physik
29 (1905):
1152]
This
book
is
based
on
lectures the author
gave
at
the
Stuttgart
Techni-
cal University
and
contains
in the
main
the
theory
of
the
basic laws
of
thermodynamics
and, subsequent to
that, in
a
clear
and
comprehensive presen-
tation,
the theories of the various heat
engines. The book
is
very
well
suited for
private
study
since
much
care
has been devoted
to
the didactic
aspects
in order
to
accomplish
the
above
purpose.
In
order
to
present
the
theory
in
a
compact
and
clear
form,
as
well
as
to
impress
the abstract results
obtained
upon
the reader's
mind
as
vividly
as
possible,
numerous
examples
and
problems
are
inserted
between
the theoretical
presentations, which
are by no
means
restricted
to
applications
important to
the
engineer.
Many
examples
are
taken
from
the
history of
the
theory
of
heat, especially
the trains
of
thought
of Robert
Mayer
are
presented
in
detail;
the
workings
and
ways
of functioning
[1]
of
"human engines"
are
also
subjected
to
a
detailed consideration
and
compared
with artificial heat
engines. The
seven
sections of the book's first half
under
consideration
are
titled
as
follows: I. Conservation
of
energy. The
first law. II. Heat
and
work.
The
second law.
III.
On
heat
engines
in
general.
IV.
On
gases.
V. On
air
engines. VI.
On
chemistry
and
the kinetic
theory
of
gases.
VII.
On
combustion
engines.-
No
previous
knowledge
of
engineering
and
physics
is
assumed,
but elements
of
infinitesimal calculus
are.
Constructional details
of
heat
engines
are
entered into
only
insofar
as
this is required
for the
presentation
of the theories
of
the different
engine
types and
for the
study
of their
efficiency.
A
table of
symbols
used,
and
a
name
and
subject index,
are
appended
to
the
volume,
so
that the
book
can
also
be
profitably used
as
a
reference
work, and each
of the
many
experimental
values
given
(e.g., caloric values
of
different
fuels,
efficiency
of
various
heat
engines
achieved
in
practice to
date, etc.,)
can
easily
be
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