After A Failed Launch, Smart Shoe Benefits From A Reboot

Hahna Alexander initially invented a shoe that could charge a battery, but no one wanted to use it. "You have to invent something that people can't live without," she says.(Image credit: Frederic Sielgel for NPR)

Source: NPR Health and Science - October 12, 2017 Category: Consumer Health News Authors: Madeline K. Sofia Source Type: news