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How Big a Boom?


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#1 nvh

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Posted 04 August 2013 - 09:30 PM

This is neat shit.

 

Have you ever sat up on a hilltop, looking out over the green landscape of Lancaster County, and wondered what would happen if a 100 meter diameter asteroid traveling at 50k/s were to zoom through the atmosphere at a 90 degree angle and impact New Holland?

 

Well now you can calculate it, and determine total energy, crater diameter, thermal radiation, seismic effects, ejecta size and range, and intensity of air blast.

 

Would you hear the fireball that flattens Chicago, could you live through what killed the Dinosaurs, how small of a boloid would it take, landing in your back yard, to give you really good stories to tell without wrecking your house?

 

Check it out!

 

Earth Impact Effects Program:

 

http://impact.ese.ic.../ImpactEffects/


Edited by nvh, 04 August 2013 - 09:30 PM.

Things fall apart; the center cannot hold;   Mere anarchy is loosed upon the world,

The blood-dimmed tide is loosed, and everywhere   The ceremony of innocence is drowned;

The best lack all conviction, while the worst    Are full of passionate intensity.

W B Yeats


#2 nvh

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Posted 05 August 2013 - 06:45 AM

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Don't you just love it!

 

Your sitting on Indian Rock in the County Park. when a 100 meter rock meanders into the atmosphere at a leisurely 20 km/s. It will start to break up at 186000 feet, and when it hits  Penn Square in a broken condition, it will have 10 Megatons of energy and will strike the ground in an ellipse .5 by .8 Km.

 

It will leave a crater nearly a mile across and 100 feet deep (No more convention center), but at this low velocity there will be no fireball. The seismic shock will hit you in less than half a second, with a magnitude of the Richter Scale of 5.3.

 

The air blast will hit you around 5 seconds after impact at 1800 MPH (Hold on to your hat!) and 121 Decibels (louder than Deep Purple!). If you've managed to scramble behind some terrain and avoided being tumbled by the blast, you'd be looking at a fairly flattened landscape, 90% of trees down, frame building dismantled, steel buildings twisted, bridges destroyed. And if you survive, Fox will want to interview you about your faith.


Things fall apart; the center cannot hold;   Mere anarchy is loosed upon the world,

The blood-dimmed tide is loosed, and everywhere   The ceremony of innocence is drowned;

The best lack all conviction, while the worst    Are full of passionate intensity.

W B Yeats


#3 Martin Riggs

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Posted 05 August 2013 - 07:35 AM

A worthy target of such a calamity would be Detroit.....but then you would have a hard time assessing the damage....before and after would look pretty much the same besides the hole.
Be polite, be professional, but have a plan to kill everyone you meet.

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#4 52skidoo

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Posted 05 August 2013 - 07:55 AM

Don't you just love it!

 

 

stop it......

 

you are making the conservatives hopeful...



#5 nvh

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Posted 05 August 2013 - 11:26 AM

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Wow! you should try the Chicxulub impact that took out the dinosaurs! A 10 km object hitting the Yucatan. you wouldn't get toasted by the thermal effects because it's below the horizon. Your first clue that something is up would be an eartquake of 9.9 on the Richter scale.

 

Yowza! you wouldn't need a trampoline. :P


Things fall apart; the center cannot hold;   Mere anarchy is loosed upon the world,

The blood-dimmed tide is loosed, and everywhere   The ceremony of innocence is drowned;

The best lack all conviction, while the worst    Are full of passionate intensity.

W B Yeats


#6 nvh

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Posted 05 August 2013 - 05:19 PM

Nobody is into this? I think this si more fun than mutated fruit flies. Oh, well. One more than I'll go back to finding legs where eyeballs should be.

 

Surf's Up!

 

A 400 meter rock hitting the ocean 100 km off of a Atlantic City will produce a tsunami between 40 and 400 feet high. For the geography minded, at the high end will that wash completely over New Jersey and drain into the Delaware River? Will Trump's Taj Mahal come to rest in Camden?


Things fall apart; the center cannot hold;   Mere anarchy is loosed upon the world,

The blood-dimmed tide is loosed, and everywhere   The ceremony of innocence is drowned;

The best lack all conviction, while the worst    Are full of passionate intensity.

W B Yeats


#7 prettylight

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Posted 05 August 2013 - 06:34 PM

Nobody is into this? I think this si more fun than mutated fruit flies. Oh, well. One more than I'll go back to finding legs where eyeballs should be.

 

Surf's Up!

 

A 400 meter rock hitting the ocean 100 km off of a Atlantic City will produce a tsunami between 40 and 400 feet high. For the geography minded, at the high end will that wash completely over New Jersey and drain into the Delaware River? Will Trump's Taj Mahal come to rest in Camden?

 

Your posts are fun, anyway! :)

 

You wouldn't have to stop on my account. I'll be checking this thread, hopeful that you'll be inspired to post more.


Goliath doesn't always win. Sometimes David wins.

 

--paraphrasing Bill Moyers


#8 nvh

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Posted 05 August 2013 - 07:03 PM

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Your posts are fun, anyway! :)

 

You wouldn't have to stop on my account. I'll be checking this thread, hopeful that you'll be inspired to post more.

 

Well tanks! When I get a block of time, I want to look into how large an object is needed to bring about a magma eruption. But there is still fruit flies.

 

mutation.jpg

Things fall apart; the center cannot hold;   Mere anarchy is loosed upon the world,

The blood-dimmed tide is loosed, and everywhere   The ceremony of innocence is drowned;

The best lack all conviction, while the worst    Are full of passionate intensity.

W B Yeats


#9 prettylight

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Posted 05 August 2013 - 07:29 PM


mutation.jpg

 

mutants-for-nuclear-power-button-0016.jp


Goliath doesn't always win. Sometimes David wins.

 

--paraphrasing Bill Moyers


#10 nvh

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Posted 06 August 2013 - 06:01 AM

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A 400 meter boloid 70 miles out in Lake Michigan from Chicago, in 275 meters of water. The thermal radiation would burn exposed skin, and ignite paper and trees. The air blast would flatten frame structures and uproot trees. And it would generate a 120 foot tsunami. You'd have about a half an hour to climb 12 stories up the Sears Tower.


Things fall apart; the center cannot hold;   Mere anarchy is loosed upon the world,

The blood-dimmed tide is loosed, and everywhere   The ceremony of innocence is drowned;

The best lack all conviction, while the worst    Are full of passionate intensity.

W B Yeats





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