b'Radioactive material gets a bad rap, what with radiation and fallout and nuclear waste and all. But it offers some practical uses. One of the coolest (OK, maybe the coolest) is using radioactive carbon to determinethe age of old bones or plants. To understand this, you mustfirst understand radioactivity and decay. When an element undergoes radioactive decay, it creates radiation and turns into some other element.\\nLearn more about your ad choices. Visit podcastchoices.com/adchoices'