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Old February 5 2013, 04:27 AM   #126
Squiggy
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Re: Expecting Trailer?/Super Bowl Trailer is Live Now [SPOILERS]

Flake wrote: View Post
A 700m starship colliding with Earth could cause planet wide devastation.
Nah.

Assuming the Enterprise remains intact during a uncontrolled reentry, and putting the density somewhere around dense rock (space alloys...who knows) a 700 meter object striking the Earth at 45 degrees would make a crater 6.5 kilometers wide by 500 meters deep. If you lived within 100 miles away you'd feel a magnitude 7 earthquake 20 seconds after impact.

http://www.purdue.edu/impactearth/
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