When you're out in the elements, fires are good for keeping you warm, heating your food, boiling water for drinking, and charging your smartphone. To achieve that last one, you'll need a FlameStower from Kickstarter. It's a portable device that requires water and fire to work.
Here's the process. Unfold the gadget. Add water to the small pop-up water cup on one end. Plug in the USB charger to your phone. Place the long flat end over a fire and start charging. It works by using a thermoelectric generator. Just be sure to extend the charging cable and keep your expensive phone away from the fire. … Read more