archiving as opposed to backing up

[Paul Koning]

>>>>> "Teo" == Teo Zenios <teoz at neo.rr.com> writes:

 >> Asteroids don't explode.  They impact.

 Teo> Scientists think an asteroid, comet, or meteorite cause the
 Teo> Tunguska explosion in Russia in the early 20th century that
 Teo> behaved just like a nuclear bomb does today (intense energy,
 Teo> heatwave, shockwave, radiation).

That's not right.  Heat and energy and shockwave, yes.  A big rock
coming in at high speed will do that.  Radiation (i.e., ionizing
radiation) -- not possible.

There are some theories about it being an antimatter object -- *that*
would give you radiation, for sure.

      paul