This article profiles a young woman named Ann Makosinski who has been hailed as a 'child prodigy' for her toy inventions that use renewable energy. She earlier invented, for example, a flashlight that is powered by heat from the hand and a mug that could charge a phone using the heat from a hot drink. She has now developed toys that teach children about the environment. The article also has a slideshow of other young inventors. (Published December 5, 2019)