INDEX 627
Experimental
verifications,
137-140,
243n,
439n,
500, 504n,
508n-509n,
546n-548n;
of
quantum hypothesis, 423n, 525,
539-541.
See
also
AE,
experimental predictions;
AE
and
experimental work,
current
Experiments, xxi, 414n, 475n, 509n;
on con-
ductivity,
504n;
Ehrenhaft's,
509,
509n
(see
also
Electrons); on energy-mass equivalence,
176n;
Eötvös's law
and, 407n;
experimentum
crucis,
133;
by
Ives and Stilwell,
175n;
on
light,
547n;
on motion, 429; on
radiation
fluctuations,
547n;
on
residual
rays,
xxiii,
510n,
544n;
on specific
heat, xxii,
525-527;
and
theory,
242n, 512, 515,
528-529,
532,
544n
(see
also
Theory); on
X
rays,
547n.
See
also
Bancelin,
Jacques;
Bucherer's
ex-
periment;
Cavendish's
experiment;
Fizeau's
experiments;
Hupka's
experiments;
Michelson-Morley experiments;
Millikan's
experiments;
Nernst,
Walther; Newton,
Is-
aac;
Perrin's
experiments;
Reich's
experi-
ments; Weiß,
Edmund
Faraday,
Michael (1791-1867),
178,
370. See
also
Force,
lines
of;
Induction
Ferromagnetism,
7,
224-226.
See
also
Con-
ductors; Weiss,
Pierre
Field
lines,
398n
Field-strength, xxix, 324, 326;
derived from
a
potential,
321;
in
dielectrics, 342; electric,
298,
325-326,
344, 389;
as equal
to
line
density, 324; magnetic, 298,
348
Field
theory,
xi. See
also
Electromagnetic
theory
Fields, xix;
electric
(see
Electric field E); elec-
tromagnetic (see Electromagnetic fields);
electromotive,
389;
electrostatic
(see
Elec-
trostatic
fields);
energy
of, xix, 350, 555;
fi-
nite
directed, 178n; force-line, 443, 486;
gravitational (see
Gravitational
fields);
ho-
mogeneous, 67,
487-488,
492;
magnetic
(see Magnetic fields);
radiation
(see
Radia-
tion
fields);
static and
stationary,
178
FitzGerald's
contraction
hypothesis.
See
Lorentz's
contraction
hypothesis
Fizeau,
Armand
Hippolyte
Louis
(1819-1896),
427-428
Fizeau's
drag
coefficient. See
Fresnel's
drag
coefficient.
Fizeau's
experiment,
133-134, 136-138,
164,
175n,
429,
439n;
and
interference,
427-
428
Flächensatz. See Area law
Fluctuations, 505n,
536-537,
546n;
AE's
lec-
ture on,
450-454,
454n-455n;
of
black-body
radiation,
xviii, 177, 178n,
453,
454n-455n,
533-539,
546n, 556;
density,
283-285; and
electromagnetic
momentum, 271;
of
emis-
sion and
absorption,
558;
of
energy,
533-
535, 539, 546n;
interference
and, 178n;
of
momentum, xx, 178n, 271,
276-280,
282n;
and
probability,
556;
of
states, 556;
statis-
tically independent,
285;
theory
of,
546n;
thermodynamics
and,
310n;
of
velocity
of
electron, 505n. See
also
Boltzmanns
princi-
ple; Opalescence;
Radiation;
Statistical
me-
chanics
Fluids:
density
of, 295;
homogeneous,
287-
310, 310n-311n; ideal, 6; mixtures, 287,
307-310;
viscous,
6. See also
Liquids
Fokker,
Adriaan D.
(1887-1968):
letter
to
Lorentz,
Hendrik
Antoon,
545n
Föppl, August
(1854-1924),
5
Force, 15-19,
24,
41, 72-73,
77,
92, 121,
339-340,
468; active,
124-125;
central,
22,
33, 37-38;
density of, 257n; as
derived from
a
potential,
30-32,
87,
121; elastic,
in sol-
ids, 409,
539
(see
also
Elasticity);
electric,
272-273, 316, 320, 322, 325, 332, 342,
348, 393;
electrodynamic,
256, 466;
electro-
motive, 119, 351, 368,
370-371,
399n;
ex-
ternal, 127n, 392; friction, 247n, 505n;
impressed,
351-352,
398n; interatomic,
468,
512n,
526
(see
also
Potential);
inter-
molecular, 242n, 246n;
inverse fifth
power
repulsion
law, 127n;
inverse
square
law of,
126n, 317, 332,
346
(see
also
Coulomb's
law); law, 37, 246n;
magnetic
(see
Magnetic
fields);
magnetomotive,
356; mechanical,
325; molecular,
403-404,
406n,
411,
420,
444;
ponderomotive (see
Ponderomotive
force);
superposition
of, 318;
system
of,
72-
75;
thermoelectric,
233-234,
246n
Force, lines of,
256,
321-322,
324, 355, 357,
361-362,
370; at
the border
of
two media,
344;
of
fields, 443, 486;
magnetic,
348, 377;
perpendicular to
conductor
surface,
328
Forrer,
Ludwig
(1845-1921): letter from
AE,
xviii;
letter from
Zangger, Heinrich,
3
Foucault's
gyroscope,
114
Foucault's
pendulum,
61-62
Fourier
decomposition,
of
radiation
field, 267,
268n
Fourier
series,
259-260,
267, 273,
276-277,
515n,
516-517
Frames of
reference:
accelerated, 175n,
480,
487-488.
See
also
Coordinate
systems