Glow in the Dark Danger

Published: Sept. 14, 2008, 11 p.m.

Are Glow-in-the-Dark watches a radiation hazard? Should you store your best timepiece in a lead lined box? Find the answer in this Question of the Week. Plus, we ask how smells travel underwater, and how a shark can smell a drop of blood in an entire ocean... Like this podcast? Please help us by supporting the Naked Scientists