Who created radiometric dating
Wiens has a Ph D in Physics, with a minor in Geology.
He is presently employed in the Space & Atmospheric Sciences Group at the Los Alamos National Laboratory.
The passage of time can be charted by the reduction in the number of parent atoms, and the increase in the number of daughter atoms.
Radiometric dating can be compared to an hourglass.
Some of the atoms eventually change from one element to another by a process called radioactive decay.
If there are a lot of atoms of the original element, called the parent element, the atoms decay to another element, called the daughter element, at a predictable rate.