28 DOC.
16
JUNE
1914
2)
and
3)
5)
and
1)
6)
and
4)
sjfhw
wqefiqwe
jegopr
eoprh er4ho
drthr
eorh
erher rhol7
pwfew]q
pepwfg]
5)
6)
With
U
=
rc/1+c
d/dr
r
+
(r2/dt)
=
K
dU/r2-u2
[3]
Or,
with
y
=
r
x
=
U
r2.dr/dU
=
V]
[4]
y3y'y'"+5y2y'
Initial
conditions:
for
x
=
0
y
=
a
(filament radius)
y'
=
b
(due
to
V0 =
const.)
y"
=
(a,
b)
(due
to
dV/dr0
=
0)
Here
it
is
assumed
that the
particles
exit
perpendicularly
to
the
filament
(S
=
0).
But
C
or
U
= x
can
thus
also be set
arbitrarily
otherwise.
Marginal
note
by
Ilse Einstein: “Arrived mid-February 1919.”