Re: The Extinction Challenge

Michael S. Lorrey (
Sat, 31 Jul 1999 11:45:30 -0400

John Clark wrote:
> Billy Brown <> Wrote:
> >If it were all neutrinos an average human would stop a grand total of maybe
> >10^-17 % of that flux, which amounts to around 10^-7 electron volts -
> >in other words, less than one interaction.
> I have no idea what you're talking about. You seem to saying that a human
> body would not absorb even one neutrino from a nearby supernova, but
> you can't possibly mean that.

Then why did you say a body the size of a planet would not stop it? It follows that if a whole planet will not stop even a large fraction of the neutrinos, then a puny human body will not absorb any.

Mike Lorrey