334
EQUATIONS
FOR MOVING
BODIES
®
=
ej
e
+
»-
m
$
-
ß
5
D
= (7 £
+
0
1
D
5
5
=
^
S
+
B
[9]
(13)
where the
subscript
D
signifies
that the
component
has
to
be taken in the
direction
of
d,
and the
subscript
ö
that
the
components
have
to
be taken in
the
directions
6
perpendicular
to
t.
§2.
On
the
electromagnetic
behavior
of
moving
dielectrics.
Wilson's
experiment
In the
following
section
we
will
use
a simple
special
case
to show
how
moving
dielectrics
behave
according
to
the
theory
of
relativity
and
how
the
results differ
from
those obtained
by
the
Lorentz
theory.
Let
S
be
a
prismatic
strip
of
a
homogeneous,
isotropic
nonconductor,
indicated
in
its
cross
section (cf. figure),
that
extends
to
infinity
perpen-
dicularly
to
the
plane
of
the
paper
in
both directions
and
that
moves
with the