Spike Jones wrote:
> im a space type not a biology type. which of the above is right,
> 10^7 or 10^12? spike
I concede to Anders estimate Spike (10^12). I'll refer you to geophysics
and carbon dating pages which estimate the total terrestrial supply of C-14
at 60 metric tons as compared to the mass of all carbon forms as 40
trillion metric tons. See
http://www.gi.alaska.edu/ScienceForum/ASF11/1130.html
http://c14.sci.waikato.ac.nz/webinfo/int.html
Peter