Rebecca Andrews | Apr 14, 1991 | 9 min read
AUTHOR: REBECCA ANDREWS, p.24 Walk into any biological research lab and you'll probably see the telltale, three-triangled symbol somewhere--on a storage cabinet, a trash can, a refrigerator--indicating that radioactive materials are present. Radioactive isotopes of common elements, most often used to quantify or track minute amounts of substances, are invaluable for research, and they will no doubt continue to be so in the foreseeable future. The benefits of this research notwithstanding, the