INDEX 623
metals, 501; thermal, xxvi,
471,
475, 477n,
511,
514,
[567];
thermal,
of
insulators, 473,
514. See
also
Electricity;
Heat;
Heat
conduction
Conductors,
119,
327-328,
334;
extended
(körperliche),
369-370,
399n;
ferromagne-
tic, 255-256;
interrupted by
dielectric,
386;
motion of,
336;
resistance
of,
367. See
also
Electric
current;
Electricity;
Insulators
Conservation:
of
energy, xxi, xxvi, 32,
34,
40,
68-69,
116, 334, 346,
374-376, 391-392,
438, 457, 488,
508, 539,
550,
562n;
of
ener-
gy
and
pendulum, 69;
of
energy,
violation
of, 538; laws,
5,
32, 66, 101;
laws and elec-
tric
charge,
318-319,
349, 352;
laws and
momentum,
72, 101,
114,
127n, 391, 508;
of
mass, 174, 438,
488
Constants:
elastic,
of
solids, xxiii, 414n; grav-
itational,
126n. See also
Boltzmann's
con-
stant;
Capillarity;
Dielectric
constant; Gas;
Magnetism;
Maxwell's
distribution
law;
Planck's
constant; Velocity
of
light
Continuum,
325-326,
397n;
AE's
lectures
on
mechanics
of,
599.
See
also
Discontinuity
Contraction
hypothesis.
See
Lorentz's
contrac-
tion
hypothesis
Conventions: in
length measurement,
479,
483;
in
physics, 430;
in
relativity theory,
446-
447;
in
space-time
measurement, 434;
and
time
definition,
432
Coordinate
systems, 11, 321,
426,
432; four-
dimensional,
170; uniformly moving,
36-
37,
171
Coordinates:
cyclic,
121, 129n;
physical mean-
ing
of
426,
431,
435; polar,
41,
326;
space-
time,
170,
432, 442,
446-447
Correlations, 285
Corresponding states,
law
of,
402,
470-471
Coulomb's
law, 346,
348
Critical
state,
287
Crystal
lattice. See Lattice
Curie
law, 222,
245n
Current, electric. See Electric current
Curricula,
of
German-language
universities,
8
Cyclic
processes,
xxix,
120-121,
129n,
490
D'Alembert's
principle,
88-91
Dällenbach,
Hans Walter (1892-1990), 4,
6,
8,
128n,
[590], 599
Dalton's
law, 180,
242n
Damping, 364,
385-386, 460,
544n-545n;
of
atomic
oscillations,
461-464,
510n, 511,
518n, 518;
of
ionic oscillations within
a
crystal, 510n, 511;
of
oscillations
of
pen-
dulum,
52. See
also
Oscillators
Darmstaedter,
Ludwig
(1846-1927):
letter
from
AE, 423n;
letter to AE,
423n
Debye, Peter (1884-1966),
475n, 477n,
517n
Decomposition:
of
magnetic fields,
377;
spec-
tral,
of
energy, 500,
510n, 515n.
See
also
Energy,
distribution
of; Force;
Fourier
decomposition
Definitions, 15, 16, 19, 240, 259, 268n, 435,
551,
554.
See
also
Center
of
gravity;
Con-
ventions,
and time
definition;
Electric
charge; Energy; Entropy;
Mass; Ohm;
Opal-
escence; Probability; Relativity, principle
of;
Rigid body;
Time
Deflection
of
light.
See
Light,
deflection
Degrees
of
freedom, 68, 72, 89, 92, 220,
245n, 422,
475n, 510,
534
Deprez-D'Arsonval instrument, 361, 363,
398n
Desormes,
Charles-Bernard
(1777-1862),
[567]
Deutsche Bunsen Gesellschaft
für
angewandte
physikalische
Chemie. See German Bunsen
Society
for
Applied Physical Chemistry
Dielectric
constant, 298, 341, 374, 386;
deter-
mination
of,
347,
398n
Dielectric
displacement
vector D,
342-347.
See
also
Electric field
E
Dielectrics, 341-346,
348, 386,
398n
Differential,
complete,
335
Differential
equations,
505;
for
diffusion, 262,
268n;
linear
vs.
nonlinear, xix; ordinary,
505n
Diffraction.
See
Light,
diffraction
of
Diffusion, 183, 188, 243n, 268n,
454n,
[572],
[575-576]
Dimensional
considerations,
AE's, 460-461,
467-470,
474,
476n,
527,
544n
Dipole,
341-343,
395, 507,
545n
Discreteness. See
Quanta
Dispersion:
of
light
in
a
medium, 250, 253n;
optical,
280, 522, 544n; theory of, 414n,
544n;
in
ultraviolet,
544n
Displacement
vector
D, 342-347, 387. See
also
Electric field
E
Displacements,
virtual,
88-89, 92. See
also
Mechanics, classical
Distribution:
canonical,
219-220,
228,
232.
See
also Maxwell's
distribution
law;
Planck's
distribution
law;
Rayleigh-Jeans
distribution
Doppler effect,
162-163, 165-166,
175n,
492,
[574]
Drude,
Paul
Karl
Ludwig
(1863-1906),
9,
414n,
529,
544n