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*To*: "DML" <dinosaur@usc.edu>*Subject*: Re: extinction5*From*: "David Marjanovic" <david.marjanovic@gmx.at>*Date*: Sun, 25 Jan 2004 21:01:42 +0100*References*: <3.0.1.16.20030125054825.617f4990@pop1.attglobal.net> <20040125184926.GA3138@dsl.ca>*Reply-to*: david.marjanovic@gmx.at*Sender*: owner-dinosaur@usc.edu

> This is impossible. It can't possibly be less than escape velocity, 11 > km/s, minus the rotational velocity of the Earth. 5 km/s is half that > minimal velocity, which puts you more than a factor of four low. Considering the shape of the crater, it must have been something _plus_ the rotational velocity of the Earth. But why can't it be slower than the escape velocity? > Given that your specific gravity is a factor of two or more low, So much? > you're an order of magnitude off in > your energy density calculation. OK. Then make this _1.048*10e26_ Hiroshima bombs per square kilometer at ground zero (or 1.048 trillion such nukes per square millimeter... oh man!!! :-P ). (The e24 that I wrote in my last mail were a typo -- should have been e25.)

**References**:**extinction5***From:*Simonyi <huibm012@attglobal.net>

**Re: extinction5***From:*Graydon <oak@uniserve.com>

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