Shuttle creates a "spooky-cool" transonic Prandtl-Glauert cloud

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FasterCPU

Junior Member
Aug 23, 2004
9
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Heads-up courtesy of Linkfilter.net and Boing Boing:

Shuttle Discovery generates a Prandtl-Glauert cloud
http://linkfilter.net/?id=90041

Shuttle makes spooky-cool Prandtl-Glauert condensation cloud
http://www.boingboing.net/2005/07/27/shuttle_makes_spooky.html

These transonic clouds form so fast and seemingly disappear just as quickly that it's easy to miss. It would be interesting to know how many people worldwide actually caught sight of this during the July 26 launch, and whether any closeup shots from a few of the many cameras that were trained on Discovery during the liftoff.
 
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irwincur

Golden Member
Jul 8, 2002
1,899
0
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I noticed that on the replay. Wondered it it was this, just never knew the name.
 
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TRUMPHENT

Golden Member
Jan 20, 2001
1,414
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Wouldn't there be pictures of this? The Discovery launch was the most closely videoed launch ever. You would think that this phenomenon would have been captured.
 
Jeff7

Jeff7

Lifer
Jan 4, 2001
41,596
20
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That video on NASA's site is so heavily compressed I can't tell if I'm seeing a vapor cloud or blurring.

Be nice too if they could decide on a single video format - RAM, ASF, WMV, MOV.....pick one and stick with it!!!! Geez.
I'd say XviD or MPEG. No royalties with using an open-source format, or MPEG1 - few royalties if any, it's simple to use, and anyone can watch it. Can't stand these streaming formats.
And with either of those formats, you can use two-pass mode, either native (XviD) or encoding-software-assisted. Consumer-grade Videostudio 9 supports 2-pass encoding. Good quality, small file. What more do they want?
Rant over.
 
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