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Re: extinction (long)

Tommy Tyrberg wrote:

> Also note that a ton of dust arriving at say 8 kms-1 contains just
> as much kinetic energy as a one ton rock with the same speed,

No kidding.  (Sorry, couldn't resist that :-)

> By the way on more reflection on probable trajectories my guesstimate of
> one hour is too low - it should be several hours.