RE: The Extinction Challenge

O'Regan, Emlyn (Emlyn.ORegan@actew.com.au)
Fri, 30 Jul 1999 17:53:15 +1000

> > Actually, this has been discussed on rec.arts.sf.science, and it was
> said
> > supernovae neutrinos would be lethal in only a few AU. See
> > http://www.tass-survey.org/richmond/answers/snrisks.txt
> > with calculations.
> > But conversely,
> > http://www.sciam.com/0496issue/0496scicit02.html
> > claiming stars can collapse without being supernovae, and generate
> enough
> > neutrinos to at least cause lots of cancer.
>
> Which only affects those on one side of the planet. Anyone on the dark
> nappytime side just has to deal with a worldwide tsunami, assuming the
> entire atmosphere hasn't already been stripped off by the swelling
> effects of the late red giant stage prior to the supernova.
>
> If you are dealing with an interstellar civilization, its all a matter
> of what size civilization we are talking about. Its amazing what a
> couple thousand light years and the dust and gas in between can do to
> reduce your risk of GRB related skin cancers.
>
> Mike Lorrey
>
Factor 30+ sunscreen? How about living underground?

Emlyn