A Canadian teenager built a flashlight powered by body heat that can shine without batteries
Published on: May 21, 2026, 3:42 p.m. | Source: Times of India
Science News: Ann Makosinski, a Canadian teenager, developed an innovative flashlight that operates without batteries, harnessing the heat from the human body. This breakthrough combines thermoelectric generation technology, showcasing low-power applications and the practicality of energy derived from body heat.
