What types of robots will the future bring? How do biomedical devices help patients? Have you ever wondered how your phone works? In Engineering: Cool Women Who Design, readers ages 9 to 12 meet three women who are working hard in the engineering field. Elsa Garmire has designed many devices that use lasers and light. Amy Kerdok designs medical and surgical devices. Anna Stork co-founded LuminAID Lab, a company that produces solar lighting...