DIY thermoelectric device charges hiker's smartphone
Friday, May 3, 2013 - 13:30
in Physics & Chemistry
(Phys.org) —Whether you're in a city café hunting down a spare outlet or camping and worrying about losing outside contact, the problem is the same, a smartphone about to lose power just when you need it the most. What to do? A problem-solver who is into hiking and backpacking has an answer. He shows, step to step, how to construct a portable thermoelectric emergency generator. David Johansson, who used the project-sharing site Instructables for his step by step instructions, explained how he arrived at the idea, construction, and results.