Inventology

Find out where great ideas come from in this “delightful account of how inventors do what they do” ( Kirkus Reviews , starred review).   A father cleans up after his toddler and imagines a cup that won’t spill. An engineer watches people using walkie-talkies and has an idea. A doctor figures out how to deliver patients to the operating room before they die.   By studying inventions like these—the sippy cup, the cell phone, and an ingenious hospital bed —we can learn how people imagine