History of Cathode ray
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Revision 2
. . October 30, 2001 6:44 pm by (logged).253.39.xxx
Revision 1
. . October 30, 2001 6:44 pm by (logged).253.39.xxx
Difference (from prior major revision)
(no other diffs)
Changed: 1c1
An old name for a beam of
electron
s.
An old name for a beam of
electron
s. So called becuase electrons are emitted from the
cathode
of a
vacuum tube
device.