Potassium becomes calcium?! is that observable over a long time (year?) with a time lapse microscope camera?
> There are gazillions[3] of atoms of potassium-40 in a banana. In any given second, 10 or 15 of them make that all-sixes roll, spit out a high-energy particle, and become stable calcium or argon.
> There are gazillions[3] of atoms of potassium-40 in a banana. In any given second, 10 or 15 of them make that all-sixes roll, spit out a high-energy particle, and become stable calcium or argon.