INCOMING!: метеорита в Челябинске, Russian Meteor - February 2013 |
INCOMING!: метеорита в Челябинске, Russian Meteor - February 2013 |
Feb 15 2013, 07:01 AM
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Senior Member Group: Moderator Posts: 3241 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
Looks like a small meteoroid decided to spoil 2012 DA14's big day by exploding over Russia...
http://zyalt.livejournal.com/722930.html?nojs=1 -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
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Feb 16 2013, 10:57 PM
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Member Group: Members Posts: 723 Joined: 13-June 04 Member No.: 82 |
All the videos I have seen that continue past the arrival of the main shockwave include a lengthy string of smaller bangs and thumps, some of them quite large in their own right. It seems clear to me that they are the result of secondary explosions as the main meteoroid fragments into smaller and smaller pieces. Unlike a nuclear explosion, a meteoric explosion is not a single event (unless it actually happens at ground level), but a cascading series of increasingly smaller and more numerous events, happening at varying distances from the listener.
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