Amazing video !

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Amazing video !

Postby Buckwild » Fri Jan 14, 2011 5:08 am

Hi everyone,

We might think that we've seen it all, guess what ? Wrong, life is as fascinating as it is complex.


Exceptional Rocket Waves Destroy Sun Dog
http://antwrp.gsfc.nasa.gov/apod/image/ ... on_big.jpg

Explanation: What created those rocket waves, and why did they destroy that sun dog? Close inspection of the above image shows not only a rocket rising near the center, but unusual air ripples around it and a colorful sundog to the far right. The rocket, carrying the Solar Dynamics Observatory (SDO), lifted off two weeks ago from Cape Canaveral, Florida, USA into a cold blue sky. The SDO is designed to observe the Sun continuously over the next several years, exploring the Sun's atmosphere at high resolution and fast time scales. The air ripples -- seen about one minute after launch -- were unexpected, as was the sudden disappearance of the sundog after the ripples passed. Noticed and recorded by several onlookers, there has been much speculation about the origin of the ripples. An ongoing discussion about them can be joined here in APOD's discussion board the Asterisk. A leading hypothesis holds that the ripples resulted from a sonic boom created as the rocket broke the sound barrier, which then jumbled a thin layer of ice crystals that were aligned to create the sundog. Lingering questions include why other rocket launches don't produce air ripples as noticeable, and why the ripples appeared more prominent above the rocket. If you know of images of any other aircraft or spacecraft that have produced similar air ripples, please post them to the discussion thread -- they may be help create a better understanding of the effect.

Link : http://antwrp.gsfc.nasa.gov/apod/ap100223.html
Discussion thread : http://bb.nightskylive.net/asterisk/vie ... =9&t=18448
Videos : http://www.youtube.com/watch?v=iwRfcrxF ... _embedded#!
http://www.youtube.com/watch?v=iwRfcrxFVEI
http://www.youtube.com/watch?v=4qvX9ZeSys8

In the last video I posted, look @ ~10 minutes, it gets even weirder...


I was baffled and I still am, I don't even know if we really understand what exactly happened, have you guys ever seen such atmospherical phenomenas during a launch ? If so, let us know.



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Re: Amazing video !

Postby RICH-ENGLAND » Fri Jan 14, 2011 5:15 am

Hi Buck.

ive seen that video before and it is a truly amazing sight, really mind boggling stuff.

thanks

rich

edit) after watching those ive seen a far better one, ill try and find it.

think this is the one, same incident but much clearer. http://www.youtube.com/watch?v=SsDEfu8s1Lw
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