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Dictionary » E » Earthquake

Earthquake

Earthquake

a shaking, trembling, or concussion of the earth, due to subterranean causes, often accompanied by a rumbling noise. The wave of shock sometimes traverses half a hemisphere, destroying cities and many thousand lives; called also earthdin, earthquave, and earthshock. Earthquake alarm, a bell signal constructed to operate on the theory that a few seconds before the occurrence of an earthquake the magnet temporarily loses its power.


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Re: Bird-Dinosaur News

... put the ability to adapt for their survival. just like someone who builds skyscrapers designs flexibility in the building, so it can withstand an earthquake (this is only an illustration for flexibility , not Darwinian principles of evolutionary pressure, or changes in phenotype).

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by AFJ
Wed Jun 24, 2009 3:25 am
 
Forum: Evolution
Topic: Bird-Dinosaur News
Replies: 44
Views: 1048

national disasters

http://en.wikipedia.org/wiki/2004_Indian_Ocean_earthquake http://en.wikipedia.org/wiki/Hurricane_Katrina http://en.wikipedia.org/wiki/California_wildfires_of_October_2007

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by MichaelXY
Sun Mar 09, 2008 8:20 am
 
Forum: Ecology
Topic: national disasters
Replies: 3
Views: 1401

allopatric vs sympatric speciation HELP!

... separated by the ocean and migrations are rare occurences(birds carrying fly eggs?). Another example is if there was a river that formed, or an earthquake that created a chasm. Another way is to see whether the two environments are are very different or similar. If they're different obviously ...

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by mith
Fri Jan 25, 2008 6:12 pm
 
Forum: Evolution
Topic: allopatric vs sympatric speciation HELP!
Replies: 7
Views: 4220

Evolution - Natural Selection FLAWED?

... changes in the structure of genes; any random change in a highly ordered system will be for the worse, not for the better. For example, if an earthquake were to shake a highly ordered structure such as a building, there would be a random change in the framework of the building, which, in all ...

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by Thermopylae
Sun Feb 18, 2007 3:52 pm
 
Forum: Evolution
Topic: Evolution - Natural Selection FLAWED?
Replies: 9
Views: 4427

Birth control

aaa. care to explain that? It seen that, if popullation density is high and any natural desaster occur at that place (Earthquake,tsunami ect.) death number is high as compare to low density areas. And Diseases are seen to be getting more and more fatal as time is passing. I belive, ...

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by sachin
Fri Dec 15, 2006 3:04 pm
 
Forum: Human Biology
Topic: Birth control
Replies: 28
Views: 4280
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