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Meteorite crash in Russia

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Re: Meteorite crash in Russia

#301

Post by edouard1234567 »

creamyhorror wrote: post #64
mmastrac wrote: post #31

Here'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%…

Here's a great dashcam video that captures the meteor arcing across its field of vision and lighting up the scene more brightly than the sun like a nuclear blast (first submitted to HN by dennisgorelik). I almost thought it was a hoax, and even tried to examine the video for signs that it was CGI. http://www.youtube.com/watch?v=tJOJ6B2XOyA The guy doesn't even say anything for a long while, just starts speeding up. e…

The Lada is having a hard time catching up with the meteorite.

Re: Meteorite crash in Russia

#302

Post by wiml »

madaxe wrote: post #281
lutorm wrote: post #278

Earlier quoted context omitted.

But how long does it take to get to that speed?

By the time its left the silo. Russians are dead keen on their one-shot silos packed to the gills with various devices (pneumatic, hydraulic, explosive) to bring a missile up to ludicrous speed very, very quickly. Spent a very enlightening afternoon down an old bunker near pervomaisk. Found some stats in the tourist brochure from there. 9.4m high,1.1m dia, 4km/s in 4s , which gives an acceleration if about 102g. 80-1…

The US Nike-X Sprint had similar performance (Wikipedia says only 90 gravities, and there's some nonphysical-looking footage of test launches on youtube somewhere). Pretty crazy, and I gather that MIRVs made that whole category of ABM obsolete.

Re: Meteorite crash in Russia

#304

Post by madaxe »

wiml wrote: post #302
madaxe wrote: post #281

Earlier quoted context omitted.

By the time its left the silo. Russians are dead keen on their one-shot silos packed to the gills with various devices (pneumatic, hydraulic, explosive) to bring a missile up to ludicrous speed very, very quickly. Spent a very enlightening afternoon down an old bunker near pervomaisk. Found some stats in the tourist brochure from there. 9.4m high,1.1m dia, 4km/s in 4s , which gives an acceleration if about 102g. 80-1…

The US Nike-X Sprint had similar performance (Wikipedia says only 90 gravities, and there's some nonphysical-looking footage of test launches on youtube somewhere). Pretty crazy, and I gather that MIRVs made that whole category of ABM obsolete.

Yup. Aforementioned satan missile can carry hundreds of warheads, and an equal number of decoys. Two of them, they said, could wipe out all US cities.

Re: Meteorite crash in Russia

#305

Post by coldtea »

zokier wrote: post #115
rdl wrote: post #45

I don't get why everyone seems to be running out of (what appear to be) fairly sturdy concrete buildings and into the street. Sure, a building won't protect you from an incoming meteorite of any size, but being indoors might protect from fragments if an incoming meteor hits something else.

Why not run outside? I haven't heard anyone killed by meteorites, so I wouldn't consider them very threatening. If it's not threatening then why not go out and enjoy the show?

>I haven't heard anyone killed by meteorites, so I wouldn't consider them very threatening. If it's not threatening then why not go out and enjoy the show?

The only reason you haven't heard of anyone killed by meteorites is chance, not some inherent impossibility of it happening.

If the fall was a few miles to the side, you would have heard of tens of thousands of people being killed by meteorite, seeing that a few cities were nearby.

In any case, I don't think it's wise to just "enjoy the show". How do you know at that point that it's not a cluster of meteorites, with more to fall soon nearby?

Re: Meteorite crash in Russia

#306

Post by SideburnsOfDoom »

rwallace wrote: post #220
madaxe wrote: post #166

Earlier 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 predict the ABM interception will turn out not to have occurred. We don't have a surveillance system capable of detecting something that size until it hits atmosphere, which means there would only be seconds of warning. That's not enough time to make the decision to fire an ABM.

> NASA tracks at least 21,000 items above 10 cm diameter.

How many items does NASA track which are 10 cm - 10m diameter and not orbiting the earth ?

Re: Meteorite crash in Russia

#307

Post by diminish »

rdtsc wrote: post #225
jevinskie wrote: post #207

Earlier quoted context omitted.

Can anyone explain why I see so many dashcam videos from Russia?

Corruption. * Pedestrians are corrupt -- they throw themselves in front of your car then sue for damages. * Other motorists are corrupt -- they lie about the accident facts * Cops are corrupt -- easily bought off and bribed (or tapped through nepotism)

this was the exact explanation given by a driver with a dashcam to me. in russia, most police do not feel responsible to organize traffic, help solve deadlocks, and give service to citizens. they behave like a mob entitled to rob you in a various ways due to false,confusing interpretation of legal texts.

Re: Meteorite crash in Russia

#308

Post by rdl »

dmor wrote: post #81

We are compiling coverage, videos, etc. in a single place on Referly (obviously there are NO product links) - including many links found here. Would appreciate any contributions, suggestions, translations and feedback: http://refer.ly/meteor-over-russia/c/15aeda3c773d11e2bfbf220...

I wish you would put a B612 Foundation link on there (which is sort of a product link, I guess)

Re: Meteorite crash in Russia

#309

Post by joseph_cooney »

danielweber wrote: post #266
JPKab wrote: post #216

Earlier quoted context omitted.

Can someone please enlighten me, because I was under the impression that there is no ABM system on the planet capable of intercepting, let alone destroying, a large rock moving at 10km/second. I'm not saying its impossible, but it just seems to me that there is a lot of misinformation as to what actually happened.

I'm skeptical there exists a system to automatically fire nukes at something and it has never had a false positive. Especially (chauvinistically) under control of the Russians through the fall of the the USSR. I'm not sure a terrestrial power could do this without being way visible ahead of time.

In a few cases Russian military officers like Stanislav Petrov have ignored protocol, not fired their nukes, and prevented global nuclear war.

http://en.wikipedia.org/wiki/Stanislav_Petrov

Re: Meteorite crash in Russia

#310

Post by ra »

jacquesm wrote: post #290
ra wrote: post #219

Earlier quoted context omitted.

I wonder if it's possible that it was an automated response? Some combination of mass and speed detected by radar (or satellite?) triggering an S2A response.

Not a chance. Taking into account: - the size of Russia - The range of surface to air missiles - the chance of missing an object that does not give off a heat signature until it is about to hit. Any kind of suggestion that we have the tech or the means (financially) to do this for a large chunk of the planet is nonsense, and for a smaller area the odds of hitting something are probably so bad that it isn't worth it.

Yeah but this isn't a random location. Chelyabinsk being home to Russia's nuclear research, and relatively close to Baikonur.
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