Re: [meteorite-list] Chelyabinsk: of contrails, bollides and IR

2013-02-16 Thread E.P. Grondine
Hello everyone - I got to watch the Russian videos before all the pop tunes and colorful Russian expressions were removed. The sanitized compilations are simply not as good. I would have preferred subtitles being added to them instead. One of the interesting things is that releases of binding

Re: [meteorite-list] Chelyabinsk: of contrails, bollides and IR

2013-02-16 Thread Don Merchant
: E.P. Grondine epgrond...@yahoo.com To: meteorite-list@meteoritecentral.com Sent: Saturday, February 16, 2013 10:27 PM Subject: Re: [meteorite-list] Chelyabinsk: of contrails, bollides and IR Hello everyone - I got to watch the Russian videos before all the pop tunes and colorful Russian

Re: [meteorite-list] Chelyabinsk: of contrails, bollides and IR

2013-02-16 Thread Chris Peterson
Meteoroids don't implode, they explode. That occurs at whatever point the stress they experience from the ram pressure on their forward face exceeds their material strength. There is nothing special about a height of 5 km; disruption can occur anywhere from 100 km high to the ground. In the