> On Tue, 19 Oct 1999, Spike Jones wrote:
> ...
> > greenhouse, in which we grow food which is free of carbon 14. If one
> > eats only food from this greenhouse, one should be able to reduce
> > substantially the amount of carbon 14 in ones system. Right? spike
>
> Robert J. Bradbury wrote: I believe you're approach would work. However I
> think that most
> of our internal radiation exposure comes from K40, not C14....
> ...So while it is an interesting idea, I think we would have to sit down
> with our caculators and figure out how much this really buys us. Robert
I chose controlling C14 because carbon is in the DNA. If a carbon atom transforms into a nitrogen, it wrecks that strand. Seems like the potassium decays would be relatively harmless.