Originally posted by googlefudge Sigh.
This is what happens when you rely on media reports without doing your own checking.
Asteroid coincidence
The Russian Academy of Sciences estimates that the meteor weighed about 10 tonnes and entered the Earth's atmosphere at a speed of at least 54,000 km/h (33,000mph).
Either the BBC has made a serious typo... Or the Russian Academy of Sciences needs to
relearn how to do maths... Personally I suspect the BBC.
Reports now are over 1000, maybe even 1200 people injured. This meteorite has caused more human injuries than anything on record. For instance, the one that made Barringer crater in Arizona clocked in at about 50,000 years ago, way before there were people there.
Were there any reports of human injuries or death as a result of the Tunguska strike? That was about 100 years ago, like they said, a 100 year event. That one was probably 50 times more powerful than the recent one.
Originally posted by sonhouse Reports now are over 1000, maybe even 1200 people injured. This meteorite has caused more human injuries than anything on record. For instance, the one that made Barringer crater in Arizona clocked in at about 50,000 years ago, way before there were people there.
Were there any reports of human injuries or death as a result of the Tunguska strike? That w ...[text shortened]... e they said, a 100 year event. That one was probably 50 times more powerful than the recent one.
I don't believe that there were any recorded injuries or deaths from the Tunguska event...
Although I suppose it's possible that there might have been the odd hunter wandering around
in the blast zone and nobody found what was left of them.
However I think it was way more than 50 times bigger.
Tunguska was (according to wiki) between 5~30 MT TNT yeild.
The current estimates for this event put it at the few KT TNT range... So of the order of 1000
times less powerful.
Originally posted by googlefudge I don't believe that there were any recorded injuries or deaths from the Tunguska event...
Although I suppose it's possible that there might have been the odd hunter wandering around
in the blast zone and nobody found what was left of them.
However I think it was way more than 50 times bigger.
Tunguska was (according to wiki) between 5~30 MT TN ...[text shortened]... or this event put it at the few KT TNT range... So of the order of 1000
times less powerful.
I wonder what would have happened if the meteor came straight in? Could it have reached the ground? If not would there have been more devastation on the planet surface? Perhaps that happened with the Tunguska incedent.
Originally posted by twhitehead Some fun armchair astronomy:
http://ogleearth.com/2013/02/reconstructing-the-chelyabinsk-meteors-path-with-google-earth-youtube-and-high-school-math/
Originally posted by googlefudge Sigh.
This is what happens when you rely on media reports without doing your own checking.
Asteroid coincidence
The Russian Academy of Sciences estimates that the meteor weighed about 10 tonnes and entered the Earth's atmosphere at a speed of at least 54,000 km/h (33,000mph).
Either the BBC has made a serious typo... Or the Russian Academy of Sciences needs to
relearn how to do maths... Personally I suspect the BBC.
Actually that comes from one Bill Cooke, head of NASA's Meteoroid Environment Office, whatever that is. He is also saying the explosion was about 300 kt.
Originally posted by Kepler Actually that comes from one Bill Cooke, head of NASA's Meteoroid Environment Office, whatever that is. He is also saying the explosion was about 300 kt.
One thing I am not sure of, was the 300 Kt the result of the meteorite actually exploding in place or was it the result of the path through the atmosphere, that is to say, the power inherent in the sonic boom shock wave? If that was where that # came from, it would have been spread out over many miles and no one place would have received the full dose.
i watched armageddon on tv the other night ... it could happen!! but i remember reading somewhere one excuse for not looking for asteroids is the odds of one hitting a city is very slim, ok if it hits lewes or the ocean but a city its slim... it says in that film 3% of the sky is watched ??
Originally posted by e4chris i watched armageddon on tv the other night ... it could happen!! but i remember reading somewhere one excuse for not looking for asteroids is the odds of one hitting a city is very slim, ok if it hits lewes or the ocean but a city its slim... it says in that film 3% of the sky is watched ??
The odds of it hitting the ocean is very high, and an ocean strike would cause a tidal wave. Much of the worlds civilization is on the coasts and vulnerable to tidal waves.
Originally posted by sonhouse One thing I am not sure of, was the 300 Kt the result of the meteorite actually exploding in place or was it the result of the path through the atmosphere, that is to say, the power inherent in the sonic boom shock wave? If that was where that # came from, it would have been spread out over many miles and no one place would have received the full dose.
I think it was the explosion. The sonic boom would probably not be relevant considering how high up it was when it went bang. The damage was caused by the equivalent of a fair to middling nuke air burst.
Originally posted by twhitehead The odds of it hitting the ocean is very high, and an ocean strike would cause a tidal wave. Much of the worlds civilization is on the coasts and vulnerable to tidal waves.
The rock that finished the dinos off hit ocean. Shallow ocean admittedly, but still ocean.
Originally posted by twhitehead The odds of it hitting the ocean is very high, and an ocean strike would cause a tidal wave. Much of the worlds civilization is on the coasts and vulnerable to tidal waves.
Maybe Armageddon was to prepare us!! Its spooky but in about 1997, there was a newspaper headline, the independant, that an Asteroid would destroy europe in 2028. 'End of the world' or something. I bought it, but never saw anything about it since...
Originally posted by e4chris Maybe Armageddon was to prepare us!! Its spooky but in about 1997, there was a newspaper headline, the independant, that an Asteroid would destroy europe in 2028. 'End of the world' or something. I bought it, but never saw anything about it since...
That's because the scientists who spotted the chunk of space rock got stroppy when their research was misused. As far as I know, there is noe thought to be no chance that the rock will hit us in 2028. There will be a chance when it comes around again a few years later but even then prediction of which bit of earth the rock will hit aren't going to be possible.
Meteor strike in Russia yesterday!
16 Feb '13 14:11
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