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Re: Hell Creek (long)
> > Quite right. Some of them are elliptical. But the big ones are pretty
> much circular. (jrc)
> The standard explanation for that is that the fireball dynamics dominate
> the kinetic energy distribution from the trajectory; once one gets above
> a certain impactor energy, the fireball swamps the contributions of
That's my point, Graydon. Thanks.
> This is one of those subjects where it's hard to test people's
> simulations, though.
True. To really test it thoroughly, one would need to observe a real-life
explosion involving teratons of energy on an earthlike planet . I'd just as