SP-345 Evolution of the Solar
System
FIGURE 218.8.- Plasma deceleration as
a function of impinging velocity in the Danielsson experiment. Plasma
velocity vz=1 in the neutral
gas cloud of helium, 1 cm beyond the cloud center, as a function of
the initial plasma vacuum velocity v0 is shown. The
critical velocity vcrit for helium is
indicated. For v0 less than
vcrit there was no
change in velocity;vz=1 =
v0 . For
v0
greater than vcrit
deceleration was marked;
vz=1 remained close
to vcrit (From
Danielsson, 1969b.)
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