Earlier quoted context omitted.
Everything interesting seems to happen right after the UNIX epoch.
Or if you're in America, right before :)
It'd be funny in Back to the Future if something reset and Doc and Marty went back to December 31, 1969.
Meteorite crash in Russia
251–260 of 311 posts
Re: Meteorite crash in Russia
#252Earlier quoted context omitted.
There probably is a nuclear blast in that mix. They stated that anti-missile systems intercepted it - the only thing with a hope in hell of reaching and destroying/breaking a meteor is the 53T6 Gazelle, which has a 10kt warhead.
I don't see any explosions here: http://www.youtube.com/watch?feature=player_embedded&v=i...
You see the explosion. It's just about 150 km north from explosion (over Chelyabinsk, Russia).
That video was made from Kamensk-Uralsky, Russia.
https://maps.google.com/maps?q=from:+Russia,+Sverdlovsk+Obla...
Edit: Fixed city name, added map.
Re: Meteorite crash in Russia
#253Here's a collection of insane videos of the event, some with the enormous sonic boom: http://www.youtube.com/watch?v=XIAm5hq8WWc http://www.youtube.com/watch?v=b0cRHsApzt8 http://www.youtube.com/watch?v=Np_mpGYSBSA Can anyone translate what they are saying in the first one? You can get a good idea of the new videos being posted using YouTube's "last hour" filter: http://www.youtube.com/results?search_query=%D0%BC%D0%…
After the initial boom there seem to be a bunch of secondary smaller pops. Anyone know what those are?
Reflections of the shockwave/sonic boom off of other solid objects. Echos pretty much.
Re: Meteorite crash in Russia
#254Earlier quoted context omitted.
According to the article, "Servicemembers from the tank brigade that found the crater have confirmed that background radiation levels at the site are normal", and "Background radiation levels in Chelyabinsk remain unchanged, the Emergency Ministry reported". I am no physicist. But assuming that we can take these reports at face value, doesn't that rule out the possibility that the meteorite was intercepted by a nucle…
Not really. A 10kt yield at altitude wouldn't leave much radioactivity above background at ground level. Also, this is the Russian military we're talking about. I don't think they'll fess up to detonating a nuke, no matter how small, in a populated area. We're talking about the same guys who absolutely definitely positively did not use nukes to build shipping canals. Oh, and I am a Physicist. MSc from an Ivy-League e…
We're talking about the same guys who absolutely definitely positively did not use nukes to build shipping canals
Ok, I'm genuinely not sure whether you're being sarcastic. So _did_ the Russians use nukes to build shipping canals?
Re: Meteorite crash in Russia
#255Earlier quoted context omitted.
The number 1 most important factor in dealing with emergencies is recognizing that an emergency is happening in the first place. It's easy to get mislead by movies and tv and the way things happen and the way people react. In reality things don't work that way. It can sometimes be difficult to tell when an emergency is happening, and a lot of people won't pay enough attention. How often do people ignore fire alarms,…
People trust authority. IIRC, the WTC building occupants were told to stay put initially. Many folks listened to that. For better or for worse, I assume that incident management folks are full of shit when they say things like that, so I boogey asap. I've been in office buildings where the fire alarms didn't sound properly and announcements came over the PA saying something like: "The roof is on fire, do not be alarm…
There's also the cry-wolf effect. Occupants of any building rapidly become used to ignoring the constant announcements of emergency drills and false alarms and real but meaningless incidents like burnt smoking popcorn. It's very difficult for a real crisis to pierce that armor of complacency.
If you want people to respond and evacuate faster to a real disaster, improve your incident reporting so it doesn't train folks into the habit of ignoring it.
Re: Meteorite crash in Russia
#256Earlier quoted context omitted.
The RT article quote local (military) newspaper as saying "A missile salvo blew the meteorite to pieces at an altitude of 20 kilometers". I wonder if it's true.
If it is true, they've been lobbing nukes - their principal ABM for ICBMs/fast re-entry is the Gazelle - 10kt warhead.
And looking at the flash, and the effects (or not) that it had on the solid state imagers, I think we can rule out a nuclear intercept. My reasoning is that a 10kT nuclear detonation @ 20km would toast any unprotected CCD or CMOS image element looking at it.
Re: Meteorite crash in Russia
#257Earlier quoted context omitted.
Are you certain? This would be news to the world. For reference, here's what an ABM transporter looks like: http://www.ausairpower.net/PVO-S/53T6-SH-08-Gazelle-ABM-TL-1... Or this: http://www.ausairpower.net/PVO-S/Gorgon-ABM-Transporter-Load... Here's what a portable ICBM looks like: http://upload.wikimedia.org/wikipedia/commons/0/00/Moscow_Pa... Or this: http://www.fas.org/programs/ssp/nukes/images/rs24tel.jpg
Yup, those would be the ones. Nice long convoy of them with APCs and tanks at the head and tail, cruising down the highway. Seeing this kind of stuff is par for the course out there though. Drove from Rostov na donu to Stalingrad and there were huge (and I mean HUGE) convoys of tanks cruising down to syria's neck of the woods. This isn't news to the world, it's just known stuff that isn't talked about as it doesn't m…
A satan? Can you explain?
Re: Meteorite crash in Russia
#258Insane!
Re: Meteorite crash in Russia
#259That is an amazing event. I am not sure I buy the meteorite story. Has anyone checked on 2012-DA14 [1] the asteroid that was supposed to cross between the earth and geosync orbit this evening? One conjecture would be it knocked something out of orbit. The air defense stuff is somewhat hard to believe, we don't intercept de-orbiting space junk, much less less hypersonic meteors. Further every missile interceptor that…
An asteroid the size of 2012-DA14 would hit with a force of nearly 3 megatons. This meteor, and it is enormously consistent with a meteor and nothing else, would likely only be around the size of a car or so, over a hundred times smaller in each dimension (and over 10,000x dimmer and harder to detect via telescope) than 2012-DA14.
Not to be a pill if you read closely I said "something it knocked out of orbit" not it. Because yes, if it had decided to hit the planet we'd be glued to CNN or something right now.
One of the interesting things to me is the 'herd' phenomena that comes about because of gravity creating clumps of things which, when they collide with something else become a sort of herd moving in a similar direction. Comet tails, and wandering asteroids, rarely do things fly through space it seems without some sort of companion material flying along with them.
Not the case here according to sources who say it had a different orbit than 2014-DA14 but it was something I was wondering about. Has anyone found a USAF Space Command radar track yet?
Re: Meteorite crash in Russia
#260That is an amazing event. I am not sure I buy the meteorite story. Has anyone checked on 2012-DA14 [1] the asteroid that was supposed to cross between the earth and geosync orbit this evening? One conjecture would be it knocked something out of orbit. The air defense stuff is somewhat hard to believe, we don't intercept de-orbiting space junk, much less less hypersonic meteors. Further every missile interceptor that…
In the various videos, there are a few noteworthy artefacts. 1) After the bright white flash, we see debris flying in the opposite direction to the meteor's path, in a parabolic trajectory - i.e. falling. 2) Your AMM system doesn't need to be hypersonic to intercept a hypersonic target. The key here is "intercept". You launch a missile to be where the target is going to be, in a direction >90deg away from the target'…
I don't buy it. Here's a 15kt explosion: http://youtu.be/B9F-l_3eLcE?t=9m
I've never witnessed a nuclear explosion first-hand, but that seems like a mighty small flash for a nuclear explosion.
Edit: Also, why don't we hear any EMP effects on the radio signal in http://www.youtube.com/watch?v=tJOJ6B2XOyA ? If anything, the audio gets clearer right at the point you seem to be claiming is a nuclear detonation.