The oxygen you breathe, calcium in your bones, iron in your blood, were created in dying stars. You are made of nuclear waste.
@ColinTheMathmo If I'm made of nuclear waste, how come I'm not radioactive?
I'm saying that in all compassion as someone rather radiopassive myself.
@wendyg Not all products of nuclear interactions are radioactive. Those reactions that we humans use do produce radioactive waste, but if we ever get fusion running, that won't (necessarily) be the case.
@wendyg - you *are* radioactive. 0.01% of the naturally occurring potassium in your body is the unstable isotope potassium-40. Though the amount of radiation emitted by this potassium is very small, the radioactivity from a truckload of bananas - a food rich in potassium - was capable of causing a false alarm when passed through a Radiation Portal Monitor used to detect possible smuggling of nuclear material at U.S. ports.