Figure 1:
Points on the center flux lines moving oppositely on a line perpendicular to the bisecting line of the angle
𝛼
with velocity modulus
𝑣
1
. For sufficiently small
𝛼
the velocity modulus
𝑣
2
of the intersection point is superluminal:
𝑣
2
=
𝑣
1
c
o
t
(
𝛼
/
2
)
.