(meteorobs) Chelyabinsk Fireball and electrophonic "noise."

drobnock drobnock at penn.com
Tue Apr 2 11:09:48 EDT 2013


If this was presented earlier,  sorry.

On a forum identified as Nasa Space Flight .com there was a question
asked about the Chelyabinsk Fireball and electrophonic "noise."
According to the article presented from Russia, 27 individuals heard a
hissing during the event. Note the question marks are part of the
Russian Text. with rough translation from an on line survey about the
event.

George John Drobnock

Question posted  2/17/2013 on the Nasaspaceflight.com.
""I would also be very interested in eyewitness reports of electrophonic
sound PRIOR to the acoustic shock -- that is, during the brightest
flaring of the fireball. This is a at-long-last well-established effect
of plasma-generated radio noise coupling into near-observer physical
objects and creating a hissing or whooshing sound. It occurs simo with
the visual flares, seems to come from 'all around' [not from above], has
been reported for centuries by some bright fireball witnesses and
pooh-poohed by scientists until work by Colin Keay and others
established its validity.""

Later Response posted.

http://www.chel-meteorit.youini.ru/
Approximate translation: Profile observations falling meteorite
Chelyabinsk February 15, 2013

http://chelyabinsk.ru/text/newsline/625214.html
is titled
**?????, ???????????? ??? ???????????, ???????? «????????»**
**Chelyabinsk Fireball turned out to be "sounding"**

""Article says 27 eyewitnesses independently noted that they heard weak
but clear hissing sounds DURING the flight. Many of them compared the
sound with "Bengal sparkler" (Popular in Russia type of hand-held light
firework) and noted that could not determine neither the source of
hissing nor direction it came from.

This information was gathered via internet-form for eyewitness reports
here:
http://www.chel-meteorit.youini.ru/
I'd like to note that there is no direct question in the form about this
effect, the respondents were NOT prompted to describe it, they all did
it in "Additional Comments" field.""

http://chelyabinsk.ru/text/newsline/625214.html
http://forum.nasaspaceflight.com/index.php?topic=31118.465





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