On Mon, Nov 25, 2013 at 12:33 AM, Jason Resch <jasonre...@gmail.com> wrote:
> I like the analogy that stars are essentially just giant compost heaps. > The levels of energy production in the core of the sun is quite low on a > per-volume basis: a few hundred watts per cubic meter. On the same order > as your own biological metabolism (and not much greater than that of a > compost heap). It is only by virtue of the huge volume of a star that it > produces large quantities of energy, but all the energy of a cubic meter of > stellar core would be just enough to run a TV or a computer. > That's true of normal stars but not of supernovas. In a supernova in less than a second a mass of carbon and oxygen 1.44 times the mass of our sun is transmutated, primarily into iron, but with traces of heavier elements too . In that one second a supernova releases more energy than our sun will in its entire 10 billion year lifetime. And per pound the accretion disk around a black hole gives off even more energy than a supernova does. John K Clark -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to email@example.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.