On this edition of Conversations, Mara Grunbaum talks with host Dan Skinner about “Break Down: Explosions, implosions, crashes, crunches, cracks, and more… a HOW THINGS WORK look at how things don’t.” Grunbaum is an award-winning science journalist, editor, and author. Her work has appeared in “Slate,” “Popular Science,” “Discover,” and “Scholastic Science World."