"K1TTT" wrote
...
On Jul 24, 7:35 am, "Szczepan Bialek" wrote:

Normally in ALL sparks current oscillates: " The storm detector is a
radio
receiver .
"The device was invented in 1894 by Alexander Stepanovich Popov. It also
was
the first radio receiver in the world.
Ground-based and mobile detectors calculate the direction and severity of
lightning from the current location using radio direction-finding
techniques
together with an analysis of the characteristic frequencies emitted by
lightning"


you like quoting stuff off the web don't you... too bad you don't
understand the basic physics behind it. no, the spark current doesn't
have to oscillate to be picked up by a radio receiver. The short
pulse, yes even one that doesn't oscillate itself, is made up of a
large number of sine waves added together, it is those that can be
picked up by radio receivers. it is also possible at a large distance
to determine the polarity of the lightning stroke as they can be
either positive or negative strokes, that type of distinction wouldn't
be needed if they oscillated.

Electrons like oscillate. The natural oscillations go up and next decay.
Each next jump is stronger at the beginning and weaker at the end.

Lightning jumps from the higher voltage area to the lower. It means that
netto electrons flow always from cloud to earth. But before such are many
lightnings cloud to cloud. Sometimes (5%) are cloud-earth-cloud.

In the all cases the current oscillate.
S*