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Tom Melly wrote:
>
> "Francois Labreque" <fla### [at] videotron ca> wrote in message
> news:3ABB4504.7408B169@videotron.ca...
> >
> > They are shockwaves that occur when the gases coming out of the
> > thrusters go from being supersonic to sub-sonic. Any decent picture of
> > the Space-shuttle taking off also has them.
> >
>
> Hah! I don't remember ever seeing the effect, but if I had I would have
> assumed it was some kind of lens flare effect.
http://corbis.altavista.com/referrals/av_image_details.asp?linkid=2623&imageid=10090201
However, It's not the best picture. The next time you see a documentary
of the Challenger blow-up, look at the main engine ignition during the
last seconds of the countdown, it's very obvious.
--
Francois Labreque | The surest sign of the existence of extra-
flabreque | terrestrial intelligence is that they never
@ | bothered to come down here and visit us!
videotron.ca | - Calvin
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