Hiram writes “Ranger Rick” F. Tscherne, a former US Army Ranger, Drill Instructor, and an advisor/trainer, shows real means of survival one of which is how to purify water for drinking. Great learning site.Link.
Editor at large – Make magazine. Creative director – Adafruit Industries, contributing editor – Popular Science. Previously: Founded – Hack-a-Day, how-to editor – Engadget, Director of product development – Fallon Worldwide, Technology Director – Braincraft.