Russia meteor..awesome

[freedombecki]

This time, there are multiple independent accounts, video, sound, measurable damage, and pieces of the meteor found.

Which kills the whacko Russian theory that it was a US weapons test.

Conspiracy theorists think nothing is ever an accident. No disaster goes to waste.

 

[cereal_killer]

Define 'huge'...Something the size of a footbal field just explodes in the upper atmosphere. The friction is too severe to stay intact. Somewhere between 'football field' sized, and 'moon' sized, a meteor would make it to the surface intact.

That is the physics theory anyway. There is not much hard data on this stuff.

I do wonder what kind of devastation an impact such as that would have...

Nasa said this one would have wiped out 800 sq miles.

Spooky stuff

Wow!!!!!!

 

[Old Rocks]

We had one graze by us in 1972.

1972 Great Daylight Fireball - Wikipedia, the free encyclopedia

Analysis of its appearance and trajectory showed it was a meteoroid about 3 metres (9.8 ft) in diameter, if a carbonaceous chondrite, to 14 metres (46 ft), if made of cometary ices.[3][4] It was in the Apollo asteroid class in an Earth-crossing orbit that would make a subsequent close approach to Earth in August 1997.[2] In 1994, Czech astronomer Zdenek Ceplecha re-analysed the data and suggested the passage would have reduced the meteoroid's mass to about a third or half of its original mass (reducing its diameter to 2 to 10 metres (6 ft 7 in to 32 ft 10 in).[3]

The meteoroid's 100-second passage through the atmosphere reduced its velocity by about 800 metres per second (2,600 ft/s) and the whole encounter significantly changed its orbital inclination from 15 degrees to 8 degrees.[4]

The US19720810 meteoroid is described in the preface of the first chapter of Arthur C. Clarke's The Hammer of God.

 

[Rozman]

I guess we should be thankful that Obama is our president.
He saved us all from total destruction.

Friggin Bush this is his fault.

 

[Old Rocks]

I guess we should be thankful that Obama is our president.
He saved us all from total destruction.

Friggin Bush this is his fault.

You are truly a dumbass.

 

[Politico]

Wish I'd been there to see it.

 

[percysunshine]

One of the landing spots;

BBC News - Russia sends clean-up team to meteorite-hit Urals

The divers could not find it. Not a big suprise. At that speed, it is probably buried 30 feet down in the muck.

(Barring any real data, I am going to go with the 'one telephone pole deep' theory of small meteor penetration depth in a mucky lake bottom.)

 

[percysunshine]

Cool picture montage;

BBC News - In pictures: Russian meteor

The damage was caused by an explosion 20 miles away (up) from the buildings. Nuclear bomb strength damage.

 

[Old Rocks]

What would happen if a large object hit the Earth?

Size Yield Crater Effect
(Megatons) (km)
......................................................
75 m 100 1.5 Land impacts destroy area
the size of Washington or Paris)

160 m 500 3.0 Destroys large urban areas

350 m 5000 6.0 Destroys area the size of a
small state. Ocean impacts produce
tsunamis.

700 m 15,000 12 Land impact destroys Virginia,
Tiawan and ocean impact causes
major tsunami.

1.7 km 200,000 30 Land impacts affect climate,
global destruction of ozone,
tsunamis destroy coastal communities.

3.0 km 1 million 60 Large nations destroyed, widespread
fires from ejecta, climate change.

7.0 km 50 million 125 Mass extinction, global conflagration,
long term climate change.

16 km 200 million 250 Large mass extinction.

 

[Old Rocks]

The K-T extinction event was caused by an impact that created a 180 km crater. Compare that to the table above.

 

[KissMy]

What would happen if a large object hit the Earth?

Size Yield Crater Effect
(Megatons) (km)
......................................................
75 m 100 1.5 Land impacts destroy area
the size of Washington or Paris)

160 m 500 3.0 Destroys large urban areas

350 m 5000 6.0 Destroys area the size of a
small state. Ocean impacts produce
tsunamis.

700 m 15,000 12 Land impact destroys Virginia,
Tiawan and ocean impact causes
major tsunami.

1.7 km 200,000 30 Land impacts affect climate,
global destruction of ozone,
tsunamis destroy coastal communities.

3.0 km 1 million 60 Large nations destroyed, widespread
fires from ejecta, climate change.

7.0 km 50 million 125 Mass extinction, global conflagration,
long term climate change.

16 km 200 million 250 Large mass extinction.

I had better dig that underground bunker a little deeper & stock it with a few years worth of food. I don't have enough money to hide out on the space station.

 

[MikeK]

Define 'huge'...Something the size of a footbal field just explodes in the upper atmosphere. The friction is too severe to stay intact. Somewhere between 'football field' sized, and 'moon' sized, a meteor would make it to the surface intact.

That is the physics theory anyway. There is not much hard data on this stuff.

I do wonder what kind of devastation an impact such as that would have...

Tunguska event - Wikipedia, the free encyclopedia

We just had a smaller meteor this time.

Heck of a coincidence it was in Russia...chuckle

That's what I've been thinking. Why does Russia seem to be the strike zone for these things?

Pondering Russia's recent history I can't help feeling sorry for them: Tyranny, political oppression, their Revolution, more oppression, WW-II devastation, Tunguska, now this.

One calamitous, punishing event after another. They seem inured to it and just keep plodding along, unperturbed, as if it's expected.

 

[KissMy]

They say it destroyed over a million sq-ft of glass & the temperature outside is -20 below zero. I need to invest in a Russian glass company on Monday.

Meteor's force 20 times greater than Hiroshima bomb

 

[percysunshine]

What would happen if a large object hit the Earth?

Size Yield Crater Effect
(Megatons) (km)
......................................................
75 m 100 1.5 Land impacts destroy area
the size of Washington or Paris)

160 m 500 3.0 Destroys large urban areas

350 m 5000 6.0 Destroys area the size of a
small state. Ocean impacts produce
tsunamis.

700 m 15,000 12 Land impact destroys Virginia,
Tiawan and ocean impact causes
major tsunami.

1.7 km 200,000 30 Land impacts affect climate,
global destruction of ozone,
tsunamis destroy coastal communities.

3.0 km 1 million 60 Large nations destroyed, widespread
fires from ejecta, climate change.

7.0 km 50 million 125 Mass extinction, global conflagration,
long term climate change.

16 km 200 million 250 Large mass extinction.

Congecture. There is no data available to support the numbers.

There is nothing wrong with conjecture. Sometimes conjecture is all we have. As long as everyone knows the numbers are made up.

 

[Valerie]

Looks just like a missile coming in and exploding midair

There was a time this would have provoked a nuclear response

lol when I first heard this story I said, Are they sure that wasn't just North Korea messing around with another "test"...? yikes!

 

[whitehall]

This is really cool because it is the only video of a meteor breaking into pieces, on multiple cameras....with sound. Notice the dual vapor trails after the explosion. The estimates were the original meteor was in the ten to twenty ton range, but only a few hundred pounds made it to the surface. Everything else was vaporized. At 30km/second...shit happens.

Various videos at;

Videos: Meteor lights up Russian skies; Update: Injuries now up over 900 « Hot Air

Ten to twenty ton range and the people we pay to monitor the sky didn't see it? It would have been awesome enough if it landed in Times Square.

 

[Remodeling Maidiac]

What would happen if a large object hit the Earth?

Size Yield Crater Effect
(Megatons) (km)
......................................................
75 m 100 1.5 Land impacts destroy area
the size of Washington or Paris)

160 m 500 3.0 Destroys large urban areas

350 m 5000 6.0 Destroys area the size of a
small state. Ocean impacts produce
tsunamis.

700 m 15,000 12 Land impact destroys Virginia,
Tiawan and ocean impact causes
major tsunami.

1.7 km 200,000 30 Land impacts affect climate,
global destruction of ozone,
tsunamis destroy coastal communities.

3.0 km 1 million 60 Large nations destroyed, widespread
fires from ejecta, climate change.

7.0 km 50 million 125 Mass extinction, global conflagration,
long term climate change.

16 km 200 million 250 Large mass extinction.

Congecture. There is no data available to support the numbers.

There is nothing wrong with conjecture. Sometimes conjecture is all we have. As long as everyone knows the numbers are made up.

There's plenty of data. We have been witness to thousands of impacts both on our planet as well as others. On top of that we have thousands of craters on earth to study.

 

[percysunshine]

What would happen if a large object hit the Earth?

Size Yield Crater Effect
(Megatons) (km)
......................................................
75 m 100 1.5 Land impacts destroy area
the size of Washington or Paris)

160 m 500 3.0 Destroys large urban areas

350 m 5000 6.0 Destroys area the size of a
small state. Ocean impacts produce
tsunamis.

700 m 15,000 12 Land impact destroys Virginia,
Tiawan and ocean impact causes
major tsunami.

1.7 km 200,000 30 Land impacts affect climate,
global destruction of ozone,
tsunamis destroy coastal communities.

3.0 km 1 million 60 Large nations destroyed, widespread
fires from ejecta, climate change.

7.0 km 50 million 125 Mass extinction, global conflagration,
long term climate change.

16 km 200 million 250 Large mass extinction.

Congecture. There is no data available to support the numbers.

There is nothing wrong with conjecture. Sometimes conjecture is all we have. As long as everyone knows the numbers are made up.

There's plenty of data. We have been witness to thousands of impacts both on our planet as well as others. On top of that we have thousands of craters on earth to study.

So you can open a catalog of measured meteors and their corresponding impact craters.

Where did the 1.7 km one land?

 

[eots]

CHECK THIS OUT..

[ame=http://www.youtube.com/watch?v=wNhtApNgvjE]Russian 'Meteor' seems to have been shot down!!! - YouTube[/ame]

 

[percysunshine]

The latest is the meteor was 55 feet in diameter, weighed around 10,000 tons and was made from a stony material.

Russia Meteor Was Largest in More Than a Century - WSJ.com

The astronomy guy has a good Slate article;

Asteroids and meteors: Why are we suddenly seeing so many?

enjoy