The American chemist Willard F. He bought three tires three, mind yuh, and peeled off the bills to pay for em Sa ay when yuh figure two hundred cars a day rollin through. Hovind g1 the assumption that the geologic column is a base from which to calibrate the c dates is not wise. The discovery allowed him to correctly date a piece of wood from an Egyptian tomb that was known to be about 4, years old. During this decay, one substance actually changes into another and radiation is released. How to Find the Mass Number.